Step-by-step explanation:
See image
The height of an object is launched into the air given by the function h(t)=-5t^2+120t+17 where t is the time in seconds
It will take 14.14 seconds for the object to return to the ground.
How long will take to the object to hit the ground?We know that the height is modeled by the quadratic equation:
h(t)=-5t^2+120t+17
The object will return to the ground when its height is zero, so we only need to solve the quadratic equation:
0 = -5t^2+120t+17
Using the quadratic formula we will get.
[tex]t = \frac{-120 \pm \sqrt{120^2 - 4*-5*17} }{2*-5} \\\\t = \frac{-120 \pm 121.4 }{-10}[/tex]
We only care for the positive solution:
t = (-120 - 121.4)/-10 = 14.14
It will take 14.14 seconds.
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Complete question:
"The height of an object is launched into the air given by the function h(t)=-5t^2+120t+17 where t is the time in seconds. How long takes for the object to hit the ground?"
What is the area of a rectangle that is 8 inches wide and 12 inches long
Answer:
96
Step-by-step explanation:
8 times 12 = 96
a recipe uses 1 1/4cups of milk to make 10 serving. If the same amount of milk is used for each serving how many servings can be made using 1 gallon of milk?
Angles in a Triangle
Answer:
55
Step-by-step explanation:
The first we need to do is find the other angle measures. The left angle must be supplementary with 110, so it must measure 70. The right angle must be supplementary with 125, so it must measure 55. The sides of an angle add up to 180, so 180-70-55= 55
The angle of x is 55°.
There is 180° in a triangle. First, we need to calculate the angles of the other two sides. A straight line also forms 180°. Therefore the first angle will be
180 - 110= 70°
The second angle will be
180 - 125 = 55°
Angles of the triangle excluding x will be
70 + 55 = 125°
Since there is 180° in a triangle, x will be
180 - 125= 55°
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The height of a triangle is 3
feet less than the base. The area of the triangle is 90
square feet. Find the length of the base and the height of the triangle.
The length of the base is 15 feet and the height is 12 feet.
What is a triangle?The three line fragments are known as the sides of the triangle, while the three places where they converge are known as the vertices of the triangle.
Let suppose, base of the triangle = x
Then, according to the problem, the height of the triangle is x - 3.
We know the area of triangle is,
[tex]A = \frac{1}{2}*b*h[/tex] ; here A is the area, h is the height and b is the base.
Put the given values,
[tex]90 = \frac{1}{2} *(x)*(x-3)[/tex]
Multiplying both sides by 2:
180 = x² - 3x
x² - 3x - 180 = 0
(x - 15)(x + 12) = 0
Therefore, either x - 15 = 0 or x + 12 = 0.
If x - 15 = 0, then x = 15, which is the length of the base of the triangle.
If x + 12 = 0, then x = -12, which is not a valid solution since the length of a side of a triangle cannot be negative.
Therefore, the length of the base of the triangle is 15 feet.
The height of the triangle (x - 3), so the height is: (15 - 3) = 12 feet.
Hence, the length of the base is 15 feet and the height is 12 feet.
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URGENT!! ILL GIVE BRAINLIEST! AND 100 POINTS
The answers are A = 46% and B = 20%.
Given that, a table of data, each cell in the table shows the number of cars in that category.
A) The probability that the car's total repair cost is less than $10000 =
86 / (86+35+67) x 100 = 86/188 x 100 = 46%
B) The probability that the car's purchase was more than $40,000 =
40 / (40+86+71) x 100 = 40/197 x 100 = 20%
Hence, the answers are A = 46% and B = 20%.
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Help I really need this right now
Answer:
Step-by-step explanation:
it's (y2-y2)/(x2-x1) slope
=14/3
Graph the function.
h(x)=9\cdot\left(\dfrac{2}{3}\right)^xh(x)=9⋅(
3
2
)
x
CAN SOMEONE GIVE ME THE COORDINATES TO GRAPH THIS?? PLEASE I'VE BEEN SUCK ON THIS FOR HOURS
Answer:
When x = -3:
h(-3) = 9 * (2/3)^(-3)
When x = -2:
h(-2) = 9 * (2/3)^(-2)
When x = -1:
h(-1) = 9 * (2/3)^(-1)
When x = 0:
h(0) = 9 * (2/3)^0
When x = 1:
h(1) = 9 * (2/3)^1
When x = 2:
h(2) = 9 * (2/3)^2
When x = 3:
h(3) = 9 * (2/3)^3
Step-by-step explanation:
I think it is this
You have 2 bird feeders that hold 5 5/12 cups of seeds. You have a third bird feeder that holds 4 1/2 cups of seeds. One scoop of seeds holds 1 1/6 cups of seeds. How many scoops of seeds are needed to fill all three bird feeders?
The number of scoops of seeds needed to fill three bird feeders is 13 1/7 scoops of seeds .
How to find the feed ?To calculate the total seed quantity required to fill all three feeders, begin by computing the volume for the first two dispensers: each can hold 5 and five-twelfths cups of seeds.
Next, this text assumes an understanding that one scoop of seeds holds approximately 1 and one-sixth cups of product. Using this information, we determine how many scoops are needed to satisfy all three bird feeders' capacity.
By multiplying the first fraction's value with the reciprocal of the second fraction helps you divide fractions accurately:
(46 / 3) x (6 / 7) = (46 x 6) / (3 x 7) = 276 / 21
276 / 21 = 13 3/21
13 3/21 = 13 1/7 scoops
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Final Examination O
7
Consider the following information from a company's unadjusted trial balance at December 31, 2020. All accounts have normal balances.
Accounts Receivable.
Accounts Payable
Cash
Service Revenue
Common Stock
Equipment
Insurance Expense
Multiple Choice
$ 5,100
680
1,760
6,280
4,600
5,500
430
Land
Notes Payable, Due 2023
Notes Receivable, Matures 2021
Prepaid Insurance
Rent Expense
Retained Earnings, January 1, 2020
Salaries and Wages Expense
What is the total of the debit side of the unadjusted trial balance?
$18.790
4,400
4,600
1,260
430
Saved
1,430
7,910
3,760
The total of the debit side of the unadjusted trial balance is $25,650.
We have,
To find the total of the debit side of the unadjusted trial balance,
We need to add up the debit balances of all the accounts listed.
i.e
Accounts Receivable, Cash, Common Stock, Equipment, Insurance Expenses, Land, Notes Receivable, Prepaid Insurance, Rent Expenses, Salaries, and Wages Expense are all debit accounts.
Notes Payable is a credit account, so we subtract it from the total.
Service Revenue and Retained Earnings do not have balances, as they are not accounts that are included in the trial balance.
Now,
The total of the debit side of the unadjusted trial balance is:
= $5,100 + $1,760 + $1,760 + $6,280 + $4,600 + $5,500 + $430 + $1,430 + $430 + $3,760
= $30,050
Subtracting Notes Payable of $4,400.
= $30,050 - $4,400
= $25,650
Therefore,
The total of the debit side of the unadjusted trial balance is $25,650.
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1 1/3 ÷ (3 1/2×2)
Pls help
Answer: 4/21
Step-by-step explanation: 1 1/3 =4/3 3 1/2x2= 7
What is the equation of a line when slope is -6 and is passes through point (1,-2)?
Question 9 options:
y = -6x - 2
y = -6x + 2
y = -6x + 4
y = -3x + 4
Answer:
C) y = - 6x + 4--------------------------
We are given the slope and a point on the line.
Use the point-slope equation to find the equation of the line:
y - y₁ = m(x - x₁)Substitute -6 for m and 1 for x₁ and -2 for y₁:
y - (-2) = -6(x - 1)y + 2 = - 6x + 6y = - 6x + 4The matching choice is C.
Frank used 2 1/3 gallons of gas on Saturday and 3 2/5 gallons of gas on Sunday. How many gallons did he use on the two days combined? Write your answer as a mixed number in simplest form.
Frank used a total of 2 14/15 gallons of gas on Saturday and Sunday combined.
To find the total amount of gas Frank used on both days, we need to add the amount of gas he used on Saturday and Sunday.
First, we need to make sure that both quantities are in the same form. We can convert the mixed number 2 1/3 to an improper fraction by multiplying the whole number by the denominator and adding the numerator. This gives us:
2 1/3 = (2 x 3 + 1)/3 = 7/3
Next, we can add the two quantities by finding a common denominator. The lowest common denominator for 3 and 5 is 15. So, we can write:
7/3 gallons + 3 2/5 gallons = (35/15 + 9/15) gallons
= 44/15 gallons
To simplify the answer, we can express the mixed number as a whole number and a proper fraction by dividing the numerator by the denominator. This gives us:
44/15 = 2 14/15
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Solve for angle C.
4
7
9
Evaluate and simplify, using cos-1.
92=42+72-2(4)(7) cosC
C = [?]°
Enter the measure of angle C in degrees. Round to the nearest tenth.
Please tell me how to solve
The measure of angle C is given as follows:
C = 106.6º.
What is the law of cosines?The Law of Cosines is a trigonometric formula that relates the lengths of the sides of a triangle to the cosine of one of its angles. It is also known as the Cosine Rule.
The Law of Cosines states that for any triangle with sides a, b, and c and angle C opposite to side c, the following equation holds true:
c^2 = a^2 + b^2 - 2ab cos(C)
The side of length 9 is opposite to the angle C, hence the equation is given as follows:
9² = 4² + 7² - 2 x 4 x 7 x cos(C)
56cos(C) = -16
cos(C) = -16/56
C = arccos(-16/56)
C = 106.6º.
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The value of the angle C of the given triangle using law of cosines is: C = 106.6°
How to use law of cosines?We usually make use of the Law of Cosines, if only one of which is missing: three sides and one angle. Thus, if the known properties of the triangle is SSS(side-side-side) or SAS (side-angle-side), this law is applicable.
This could be in the form of:
c² = a² + b² - 2ab Cos C
From the given triangles, we have:
a = 4
b = 7
c = 9
Thus:
9² = 4² + 7² - 2(4 * 7)cos C
81 = 16 + 49 - 56 cos C
56 cos C = -16
cos C = -16/56
cos C = -0.2857
C = cos⁻¹0.2857
C = 106.6°
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Use the given information to find the p-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject
the null hypothesis or fail to reject the null hypothesis).
The test statistic in a right-tailed test is z=0.52.
A. 0.3015; fail to reject the null hypothesis
B. 0.0195; reject the null hypothesis
C. 0.3015; reject the null hypothesis
D. 0.6030; fail to reject the null hypothesis
A. 0.3015; fail to reject the null hypothesis
The test statistic is z = 0.52 and p-value (0.3015) is greater than the significance level (0.05)
Given data ,
Under the premise that the null hypothesis is true, the p-value is the likelihood of witnessing a test statistic that is as severe as the one computed or even more extreme. The p-value of a right-tailed test is the likelihood of seeing a test statistic that is higher than or equal to the computed test statistic.
We can compare the test statistic to the critical value or use a conventional normal distribution table to calculate the p-value given that the test statistic is z = 0.52 and the significance threshold is 0.05
Looking up the p-value corresponding to z = 0.52 in a standard normal distribution table or using a calculator, we find that the p-value is approximately 0.3015.
Since the p-value (0.3015) is greater than the significance level (0.05), we fail to reject the null hypothesis.
Hence , 0.3015; fail to reject the null hypothesis
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Sally has made a cake (as shown on the right) and frosted the top and all sides but not the bottom of the cake. She cuts the cake into 9 pieces. How many pieces are frosted on only one side?
There are a total of 8 pieces on the outer edge with only one frosted side.
We have,
If Sally has frosted the top and all sides but not the bottom of the cake, then each piece will have one frosted side (the top) and three unfrosted sides (the bottom and two sides).
Out of the 9 pieces, only the pieces on the outer edge will have exactly one frosted side.
If we count the number of pieces on the outer edge, we can determine how many pieces are frosted on only one side.
For a cube-shaped cake, there are 8 pieces on the outer edge.
To see why, imagine slicing off the corners of the cube to create a smaller cube inside.
Each of the 6 faces of the smaller cube will have a piece missing from the corner.
Therefore, there are 6 pieces on the outer edge of the larger cube, and each of these pieces can be divided into two smaller pieces (with one frosted side each) by cutting along the diagonal.
This gives a total of 12 pieces, but we need to subtract the 4 corner pieces that have two frosted sides each.
So there are a total of 8 pieces on the outer edge with only one frosted side.
Therefore,
There are a total of 8 pieces on the outer edge with only one frosted side.
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There are a total of 8 pieces on the outer edge with only one frosted side.
We have,
If Sally has frosted the top and all sides but not the bottom of the cake, then each piece will have one frosted side (the top) and three unfrosted sides (the bottom and two sides).
Out of the 9 pieces, only the pieces on the outer edge will have exactly one frosted side.
If we count the number of pieces on the outer edge, we can determine how many pieces are frosted on only one side.
For a cube-shaped cake, there are 8 pieces on the outer edge.
To see why, imagine slicing off the corners of the cube to create a smaller cube inside.
Each of the 6 faces of the smaller cube will have a piece missing from the corner.
Therefore, there are 6 pieces on the outer edge of the larger cube, and each of these pieces can be divided into two smaller pieces (with one frosted side each) by cutting along the diagonal.
This gives a total of 12 pieces, but we need to subtract the 4 corner pieces that have two frosted sides each.
So there are a total of 8 pieces on the outer edge with only one frosted side.
Therefore,
There are a total of 8 pieces on the outer edge with only one frosted side.
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Need help please
Geometry
Answer:Supplementary
Step-by-step explanation:
The two angles add up to 180
Answer:
supplementary since 136+44= 180 and any angles that sum up to 180 are supplementary
Karen can fit 25 vinyl records of
diameter 12 in. inside a cylindrical
carton with the same diameter.
What is the thickness of each
record if the
volume of the
carton is 100T
cubic inches?
carton
Round your
answer to the nearest hundredth
of an inch.
The value of the thickness of each record if the volume of the carton is 100π is,
⇒ 2.78 inches
We have to given that;
Karen can fit 25 vinyl records of diameter 12 in. inside a cylindrical carton with the same diameter.
We know that;
Volume of cylinder is,
⇒ V = πr²h
Hence, We get;
100π = π × (12/2)² × h
100 = 36h
h = 100 / 36
h = 50/18
h = 2.78 inches
Thus, The value of the thickness of each record if the volume of the carton is 100π is,
⇒ 2.78 inches
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f(x) = x² on [3, 3+h]
The average rate of change of the function f(x) = x² on the interval [3, 3 + h] is given as follows:
h + 6.
How to obtain the average rate of change?The average rate of change of a function is given by the change in the output of the function divided by the change in the input of the function.
The function in this problem is given as follows:
f(x) = x².
Then the outputs are obtained as follows:
f(3) = 3² = 9.f(3 + h) = h² + 6h + 9.The change in the output is given as follows:
h² + 6h + 9 - 9 = h² + 6h.
The change in the input is given as follows:
3 + h - 3 = h.
Hence the rate is:
r = (h² + 6h)/h.
r = h(h + 6)/h
r = h + 6.
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Trigonometry help pls
The angle of depression at which Beatrice sees the boat is given as follows:
x = 6.65º.
What are the trigonometric ratios?The three trigonometric ratios are the sine, the cosine and the tangent, and they are defined as follows:
Sine of angle = length of opposite side to the angle divided by the length of the hypotenuse.Cosine of angle = length of adjacent side to the angle divided by the length of the hypotenuse.Tangent of angle = length of opposite side to the angle divided by the length of the adjacent side to the angle.For the angle, we have that:
The opposite side is of 70 feet.The adjacent side is of 600 feet.Hence the angle is obtained applying the tangent ratio as follows:
tan(x) = 70/600
x = arctan(70/600)
x = 6.65º.
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The angle of depression at which Beatrice sees the boat is given as follows:
x = 6.65º.
What are the trigonometric ratios?The three trigonometric ratios are the sine, the cosine and the tangent, and they are defined as follows:
Sine of angle = length of opposite side to the angle divided by the length of the hypotenuse.Cosine of angle = length of adjacent side to the angle divided by the length of the hypotenuse.Tangent of angle = length of opposite side to the angle divided by the length of the adjacent side to the angle.For the angle, we have that:
The opposite side is of 70 feet.The adjacent side is of 600 feet.Hence the angle is obtained applying the tangent ratio as follows:
tan(x) = 70/600
x = arctan(70/600)
x = 6.65º.
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solve the inequality
[tex]4g \: \leqslant 10[/tex]
The value of the inequality is g≤2.5
What is an inequality?In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions. It is used most often to compare two numbers on the number line by their size.
The given inequality is 4g≤10
To solve the inequality, divided bo sides of the inequality by the coefficient of g which is 4
This gives the value
4g/g≤10/4
⇒ that g = 2.5
Therefore the value of the inequality is g≤2.5
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Clark is removing dirt from a rectangular section of his backyard to build a water feature. The section is 2.9 meters long and has an area of 11.31 square meters. 2.9x = 11.31 What is the width of the section of Clark's backyard? A. 2.9 meters B. 8.41 meters C. 3.9 meters D. 4.9 meters PLEASE HELP ME
The width of the rectangular section of Clark's backyard is 3.9 meters.
width of rectangular sectionArea of the rectangular section is 11.31 sq meters.
length of rectangular section is 2.9 meters.
For a rectangular section the formula for area is equal to the product of length and width of the rectangular section.
Area = length * width
Rectangle: It is a 4 sided structure with two equal opposite sides It also has 4 right angles and sum of all angles is equal to 360°.
here,
width = [tex]\frac{area}{length}[/tex] = [tex]\frac{11.31}{2.9} =3.9[/tex] meters.
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One truck from Lakeland Trucking, Inc. can carry a load of 3880.8 lb. Records show that the weights of boxes that it carries have a mean of 75 lb and a standard deviation of 14 lb. For samples of size 49, find the mean and standard deviation of overbar(x).
Question 10 options:
A)
μoverbar(x)= 2; σoverbar(x)= 75
B)
μoverbar(x)= 14; σoverbar(x)= 75
C)
μoverbar(x)= 75; σoverbar(x)= 2
D)
μoverbar(x)= 75; σoverbar(x)= 14
Answer:
A
Step-by-step explanation:
The correct option is A) μoverbar(x)= 2; σoverbar(x)= 75.
a principal of $2200 is invested at 4.7% interest, compounded annually. How much will the investment be worth after 9 years?
The investment will be worth approximately $3,326 after 9 years.
Define the term compound interest?The interest that is paid on both the initial investment and any interest that has been paid on that investment in previous periods is called compound interest.
The investment's future value can be determined using the formula for compound interest:
[tex]A = P * (1 + \frac{r}{n})^{nt}[/tex]
where, A = future value of the investment, P = principal (initial investment), r = annual interest rate, n = number of times, interest compounded per year, and t = number of years.
In this case, given values:
P = $2200 (the initial investment or principal)
r = 4.7% (the annual interest rate expressed as a decimal)
n = 1 (interest is compounded annually)
t = 9 (the investment is held for 9 years)
putting the values,
[tex]A = 2200 * (1 + \frac{0.047}{1} )^{1*9}[/tex]
[tex]A = 2200 * (1.047)^9[/tex]
A = $3326.16
Therefore, the investment will be worth approximately $3326 after 9 years.
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The investment will be worth approximately $3,326 after 9 years.
Define the term compound interest?The interest that is paid on both the initial investment and any interest that has been paid on that investment in previous periods is called compound interest.
The investment's future value can be determined using the formula for compound interest:
[tex]A = P * (1 + \frac{r}{n})^{nt}[/tex]
where, A = future value of the investment, P = principal (initial investment), r = annual interest rate, n = number of times, interest compounded per year, and t = number of years.
In this case, given values:
P = $2200 (the initial investment or principal)
r = 4.7% (the annual interest rate expressed as a decimal)
n = 1 (interest is compounded annually)
t = 9 (the investment is held for 9 years)
putting the values,
[tex]A = 2200 * (1 + \frac{0.047}{1} )^{1*9}[/tex]
[tex]A = 2200 * (1.047)^9[/tex]
A = $3326.16
Therefore, the investment will be worth approximately $3326 after 9 years.
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What is the area of this figure?
4 mm
1 mm
2 mm
square millimeters
7 mm
5 mm
5 mm
The area of the figure is 45 square millimeters.
What is Area?
Area is a measure of the size or extent of a two-dimensional surface or shape. It is usually expressed in square units such as square meters , square feet , square centimeters , square inches , etc. The area of a shape or surface can be calculated by multiplying the length of one side or dimension by the length of an adjacent side or dimension, or by using specific formulas depending on the shape.
The figure can be broken down into a rectangle (5 mm x 7 mm) and two right triangles (with legs 2 mm and 3 mm, respectively).
Area of rectangle = length x width = 5 mm x 7 mm = 35 square mm
Area of each triangle = 1/2 x base x height = 1/2 x 2 mm x 4 mm = 4 square mm
1/2 x 3 mm x 4 mm = 6 square mm
Total area of the figure = area of rectangle + area of two triangles = 35 square mm + 4 square mm + 6 square mm = 45 square mm.
Therefore, the area of the figure is 45 square millimeters.
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Does point A on the graph represent a pair of possible values of m and w? Yes or no because 20 is or is not equal to 2.5 times 1.
Answer:
Yes, point A on the graph represents a pair of possible values of m and w because it satisfies the equation w = 2.5m + 5.
To confirm this, we can substitute m = 20 into the equation to get:
w = 2.5(20) + 5
w = 50 + 5
w = 55
So the coordinates of point A are (20, 55), which represents a possible value of m and w that satisfies the equation.
Solve each equation
tan([tex]\frac{x}{2}[/tex] - [tex]\frac{\pi }{2}[/tex]) = [tex]\sqrt{2}[/tex]
Also what is the value of arctan([tex]\sqrt{2}[/tex])
Give in the form x=[tex]\pi[/tex]+[tex]\pi[/tex]n
The value of arctan(√2) for the equation tan(x/2 - π/2) = √2 in the form x=π +πn is given by arctan(√2) = π/4 + πn, where n is an integer.
Equation is equal to,
tan(x/2 - π/2) = √2
By using the identity for tangent of half angle,
tan(x/2 - π/2)
= 1/cot(x/2 - π/2)
= 1/(-tan(x/2))
So the equation becomes,
1/(-tan(x/2)) = √2
Multiplying both sides by -1, we get,
tan(x/2) = -1/√2
= -√2/2
Now use the inverse tangent function (arctan) to find x/2,
arctan(-√2/2) = -π/4
Since x/2 - π/2 = -π/4, we have,
⇒ x/2 = -π/4 + π/2
= π/4
The solutions for x are x = π/2 + 2πn, where n is an integer.
Now let us find the value of arctan(√2),
arctan(√2) is the angle whose tangent is √2.
Since tan(π/4) = √2, we have,
arctan(√2) = π/4 + πn, where n is an integer.
Therefore, the value of arctan(√2) in the form x=π +πn is equal to
arctan(√2) = π/4 + πn, where n is an integer.
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Can anyone help QUICK? Giving 10 points, and brainliest!
Answer:
1. 62
Step-by-step explanation:
A glass contains 320 cm³ of milk. The mass of the milk is 330 g. Calculate the density of the milk in kilograms per cubic metre (kg/m³). Give your answer to the nearest integer.
If glass contains 320 cm³ of milk, the mass of the milk is 330 g, the density of the milk is approximately 1031 kg/m³.
Density is defined as the mass per unit volume of a substance. To find the density of milk in kg/m³, we need to convert the given volume and mass to the appropriate units.
First, we need to convert the volume from cm³ to m³. Since 1 m = 100 cm, 1 m³ = (100 cm)³ = 1,000,000 cm³. Therefore, we can convert 320 cm³ to m³ by dividing by 1,000,000:
320 cm³ ÷ 1,000,000 = 0.00032 m³
Next, we need to convert the mass from grams to kilograms. Since 1 kg = 1000 g, we can convert 330 g to kg by dividing by 1000:
330 g ÷ 1000 = 0.33 kg
Now that we have both the mass and volume in appropriate units, we can calculate the density by dividing the mass by the volume:
Density = mass ÷ volume = 0.33 kg ÷ 0.00032 m³ ≈ 1031 kg/m³
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AP Environmental Science: Which of the following would be least likely to impact the price of electricity?
- price of a barrel of oil
- production of biodiesel
- cost of a ton of coal
- fire in a gas pipeline
The production of biodiesel would be the least likely to impact the price of electricity. Biodiesel is not commonly used as a fuel source for electricity generation, so changes in its production would not significantly affect the overall supply and demand of electricity. On the other hand, the price of a barrel of oil, the cost of a ton of coal, and a fire in a gas pipeline could all impact the price of electricity, as these are commonly used fuel sources for electricity generation.