Answer:25/.2
Step-by-step explanation:
i think this is right
Answer:
The answer would be 4 7/24
Step-by-step explanation:
We can obtain common denominators by multiplying both numerator (top) and denominator (bottom) by the same amount.
The LCM (least common multiple) for your question would be 24, so you would multiply in order to get the fractions to have a common denominator of 24, while keeping the same value.
for every 3 girls taking classes at a martial arts school there are 4 boys who are taking classes. suppose there are 236 boys taking classes at the school. write a proportion that could be used to predict the number of girls taking classes at the school. Use x to represent the number of girls, and find it
How do i get the result for W in this equation -3 > 1/2w + 11
Answer:
w<-28
Step-by-step explanation:
multiply both sides by 2 : -6 > w +22
subtract 22 : w < -28
an oak tree can grow 24 inches a yea, for the first 75 years. if a newly planted oak tree is currently 90 inches, how tall, in inches, will the tree be in 8 years?
Answer:
282 inches
Step-by-step explanation:
24*8+
PLEASE HELP NEED ANSWER ASAP WILL MARK BRAINLIEST
△ABC has a right angle at C, BC=9.2 centimeters, and m∠A=63∘.
What is CA ?
Enter your answer rounded to the nearest tenth in the box.
Answer:
49 degrees
Step-by-step explanation:
Answer:
4.7 cm
Step-by-step explanation:
I took the test
6. Jenny's family ordered 4 medium pizzas. They only ate 2.5 pizzas.
How many pizzas were left over? Write your answer as a decimal.
North Conway Ski Shop ordered 300 pairs of skis. When the shop received the order, 60 pairs of skis were missing. What percent of the order did the shop receive?
Answer: 80% received, 20% lost.
Step-by-step explanation: [tex]\frac{60}{300}[/tex] × [tex]\frac{x}{100}[/tex] = [tex]\frac{6000}{300}[/tex] *Make sure to cross multiply!!*
——————————————6000 ÷ 300 = 20%
——————————————100 - 20 = 80% .
Therefore, the shop received 80% of the order because the other 20% are missing.
-5x-13, For x<-7
H(x)={3, For -7<_ x< 3
x+2, For x_> 3
Solve for
H(-7)
H(-2)
H(3)
H(9)
Thank you
The values of H(-7)=3, H(-2)=3, H(3)=5, H(9)=11 using the given equations by substituting the values.
What is equation?The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two expressions 3x + 5 and 14, which are separated by the 'equal' sign. A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. a formula that expresses the connection between two expressions on either side of a sign. Typically, it has a single variable and an equal sign.
Here,
H(x)= {-5x-13 for x<-7
3 for -7<=x< 3
x+2 for x=> 3}
when x=-7,
H(x)=3
when x=-2,
H(x)=3
when x=3,
H(x)=x+2
H(x)=5
when x=9,
H(x)=x+2
H(x)=11
H(-7)=3, H(-2)=3, H(3)=5, H(9)=11 when the values are substituted under the conditions stated for the given equation.
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To help out with her retirement savings, Lena invests in an ordinary annuity that earns 3.6% interest, compounded quarterly. Payments will be made at the end of each quarter. How much money does she need to pay into the annuity each quarter for the annuity to have a total value of $96,000 after 18 years? Do not round intermediate computations, and round your final answer to the nearest cent
The amount of money that Lena needs to put each quarter for the annuity to have a total value of $96,000 is $953.45.
What amount should Lena deposit each quarter?An annuity is when a series of payment is made either at the beginning of a period or at the end of a period over a period of time.
An ordinary annuity is when the payment is made at the end of the period. When the interest is compounded quarterly, it means that four times in a year, the amount that is invested and the interest that has already being earned increase in value.
The formula that can be used to determine the quarterly payments is:
Payment = future value / annuity factor
Annuity factor = {[(1+r)^n] - 1} / r
Where:
r = interest rate = yearly interest / number of compounding = 3.6 / 4 = 0.9%n = total number of periods the payment is made = number of years x number of compounding = 18 x 4 = 72Payment = $96,000 / [{(1.009^72) - 1} / 0.009] = $953.45
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What's is 100 x 100
(P.S don't cheat)
Answer:10,000
Step-by-step explanation:
Find the value of the linear correlation coefficient r. Round your answer to 3 decimal places if necessary.
(1 , 6) , (3 , 4) , (5 , 2)
The correlation coefficient, r, of the data (1 , 6) , (3 , 4) , (5 , 2) is calculated as: r = -1
What is Correlation Coefficient?The correlation coefficient can be described as a numerical value that ranges from -1 through 0, to 1. It is a test of the strength of the relationship between two different variables. It is denoted as "r".
The formula for finding the correlation coefficient (r) between two variables x and y is given as:
r = Σ(xi - mean of x)(yi - ȳ) / √(Σ[xi - mean of x)²Σ(yi - ȳ)²]
Given the following data:
(1 , 6) , (3 , 4) , (5 , 2)
Therefore, the table in the attached diagram shows how to derive each of the variables in the formula used for calculating the correlation coefficient, r, between X and Y.
Thus, applying the formula, we have:
Correlation coefficient (r) = -8/√(8*8)
Correlation coefficient (r) = -1
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Table salt (sodium chloride, NaCl) is 40% sodium (Na) by weight. If a box of salt weighs 26 ounces, how much Na is in the box of salt?
The quantity of sodium in the salt is 10.4 ounces
How to find the quantity of sodium in the saltinformation from the problem
Table salt (sodium chloride, NaCl) is 40% sodium (Na) by weight
If a box of salt weighs 26 ounces, how much Na is in the box of salt
The question is a percentage problem, percentage deals with a fraction hundred and used as follows
40%
= 40 percent
= 40 / 100
= 0.4
The factor 0.4 of the total weight of the salt is what we calculate
the total number is 26 ounces
= 0.4 * 26
= 10.4
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The last time it placed an order for ingredients, Sweet Treats Bakery ordered 1,090 kilograms of sugar. This time, the bakery is ordering 654 kilograms. What is the percent of the decrease in the size of the sugar order?
hello anyone can help I would appreciate it
The percent of the decrease in the size of the sugar order is 40%.
According to the question,
We have the following information:
Sweet Treats Bakery ordered 1,090 kilograms of sugar. This time, the bakery is ordering 654 kilograms.
We know that following formula is used to find the percent decrease:
100*(original amount-final amount)/original amount
(More to know: the same formula is used to find the percent increase. It can used to find any percent increase or decrease given that the final and initial amount or price is given.)
100(1090-654)/1090
100*436/1090
40%
Hence, the percent of the decrease in the size of the sugar order is 40%.
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State all integer values of xx in the interval -4 ≤ x ≤ 3 that satisfy the following inequality: -5x -3 > 8
The integer which satisfies both inequalities -4 ≤ x ≤ 3 and -5x -3 > 8 are -3 and -4.
What is inequality?A mathematical phrase in which the sides are not equal is referred to as being unequal. In essence, a comparison of any two values reveals whether one is less than, larger than, or equal to the value on the opposite side of the equation.
As per the given first inequality,
-4 ≤ x ≤ 3
The integer associated with the above inequality is -4,-3,-2,-1,0,1,2,3.
As per the given second inequality,
-5x -3 > 8
-5x > 8 + 3
-5x > 11
x < -11/5
x < -2.2
The integer associated with the above inequality is -3,-4....
The integer satisfies both inequalities are -3 and -4.
Hence "The integer which satisfies both inequalities -4 ≤ x ≤ 3 and -5x -3 > 8 are -3 and -4".
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The mean of the data set is and the sample proportion of numbers less than the mean is
The mean of the data set is 22.1 , and the sample proportion of numbers less than the mean is 46.67 %
What are mean?The mean is the average value which can be calculated by dividing the sum of observations by the number of observations
Mean = Sum of observations/the number of observations
Mean of the data set is calculated by adding all numbers and dividing it with total number sample data.
Then Adding all the numbers;
25.5 + 26 +18.2 +15.3 + 28.5 + 27 + 20.7 +20.2 +26.1 +18.2 +21.4 +17.9 +24.3 +22.6+ 19.6 =331.5
Now Dividing by total,
331.5/15 =22.1
Mean =22.1
The sample proportion of numbers less than the mean will be;
= (7/15 ) 100
=46.67%
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The complete question is;
For this question, any non-integer answers should be entered as decimals, rounded to the hundredths place.
Consider this data set. The mean of the data set is ___ , and the sample proportion of numbers less than the mean is ___%
The cost of the pendant is 3/4 the cost of the bracelet. If their total cost is P413 how much does the pendant cost?
Answer:
P 717
Step-by-step explanation:
Fraction addition using algebra:
Let the cost of bracelet = x
[tex]\sf Cost \ of \ pendent = \dfrac{3}{4}*Cost \ of \ bracelet[/tex]
[tex]\sf = \dfrac{3}{4}x[/tex]
Cost of bracelet + cost of pendent = 413
[tex]\sf x + \dfrac{3}{4}x = 413\\\\ \dfrac{4}{4}x+\dfrac{3}{4}x=413[/tex]
[tex]\sf \dfrac{7}{4}x=413[/tex]
Muliply both sides by 4,
[tex]\sf 4*\dfrac{7}{4}x = 413*4\\\\[/tex]
7x = 413 * 4
Now, divide both sides by 7
[tex]\sf x = \dfrac{413*4}{7}\\\\ x = 59*4\\\\x = 236[/tex]
Cost of bracelet = P 236
Cost of pendent = 413 - 236
= P 177
need help with homework
Horizontal asymptotes of the given graph is given by y = -4.
As given in the question,
From the given graph we observed :
Value of each unit on x -axis is equal to 1
Value of each unit on y -axis is equal to 1.
For the standard equation of line y = mx + b
When input values tends to ∞ or -∞ graph approaches to infinity to both the ends.
Horizontal asymptote is given y = b as per the value of b .
Here in the given graph ,
When input values tends to to ∞ or -∞ graph approaches to infinity to both the ends then horizontal asymptote is given by y = -4.
Therefore, horizontal asymptotes of the given graph is given by y = -4.
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Which ordered pair is not a solution to the inequality y ≥ 2x2 − 4x + 2?
The ordered pair that is not a solution to the inequality y ≥ 2x² - 4x + 2 is:
(-1,6).
How to obtain which ordered pair is not a solution to the inequality?The inequality is given as follows:
y ≥ 2x² - 4x + 2.
Each ordered pair has the following format:
(x-coordinate, y-coordinate).
Then the numeric value of the inequality is going to be calculated for each ordered pair, as follows:
Replacing x on the inequality by the x-coordinate of the ordered pair.Replacing y on the inequality by the y-coordinate of the ordered pair.Then the numeric values of the inequality for each ordered pair are presented as follows:
(-1,6): 6 ≥ 2(-1)² - 4(-1) + 2 -> 6 ≥ 8.(1,0): 0 ≥ 2(1)² - 4(1) + 2 -> 0 ≥ 0.(0,3): 3 ≥ 2(0)² - 4(0) + 2 -> 3 ≥ 2.(2,5): 5 ≥ 2(2)² - 4(2) + 2 -> 5 ≥ 2.The contradiction, that is, the statement which is false, is given at the following ordered pair:
(-1,6).
Hence it is not a solution to the given inequality.
Missing InformationThe ordered pairs are given by the image shown at the end of the answer.
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Evaluate the expression 2x square
+ 4y - z when x = 7, y = 9, and z = 11
Answer:
123
Step-by-step explanation:
2x square = 2.7 square = 98
98 + 4y = 98 + 4.9 = 98 + 36 = 134
134 - z = 134 - 11 = 123
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________ where f(x) =5-2x^2 increasing?
(-inf,0)
(0,inf)
(-inf,inf)
(-inf,5)
The quadratic function is increasing on the interval:
(-∞, 0)
On which interval is the function increasing?
Here we want to see on which intervals is the quadratic function increasing.
Or function is:
f(x) = 5 - 2x^2
Notice that we have a negative leading coefficient, which means that the parabola opens downwards.
Then the function will be increasing from negative infinity to the x-value of the vertex.
Remember that for the general quadratic:
y = a*x^2 + b*x + c
the x-value of the vertex is:
x = -b/2a
In this case we don't have a linear term, so b = 0, then the vertex is at x = 0.
Which means that the function is increasing on the interval (-∞, 0)
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Model Real Life Hardee County is a rectangular county in Florida with an area of 637 square miles. What is the width of Hardee County?
The width of the rectangular Hardee County, considering it's area, is given as follows:
21.23 miles.
How to obtain the area of a rectangle?The area of a rectangle of length l and width w is obtained by the multiplication of these dimensions, as follows:
Area = length x width.
For the rectangular Hardee County, the parameters are given as follows:
The area is of 637 square miles.The length is of 30 miles, as shown by the image given at the end of the answer.The width is to be discovered.Considering the area and the length, the width is obtained as follows:
Area = length x width
30w = 637
w = 637/30
w = 21.23 miles.
(the area is in miles squared, hence both dimensions are in miles).
Missing InformationThe problem is shown by the image at the end of the answer.
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Find x and y. I need it ASAP
Answer:
x=12 y=15
Step-by-step explanation:
15-9=6 6+6=12
18-9=9 6+9=15
NO LINKS!! Please assist me with this problem Part 2m
Answer:
[tex]\textsf{(a)} \quad \boxed{9a-3}[/tex]
[tex]\textsf{(b)} \quad \boxed{-9a-3}[/tex]
[tex]\textsf{(c)} \quad \boxed{-9a+3}[/tex]
Step-by-step explanation:
Given function:
[tex]f(x) = 9x - 3[/tex]
Part (a)
To find f(a), substitute x = a into the function:
[tex]\implies f(a)=9a-3[/tex]
Part (b)
To find f(-a), substitute x = -a into the function:
[tex]\implies f(-a)=-9a-3[/tex]
Part (c)
To find -f(a), first substitute x = a into the function:
[tex]\implies f(a)=9a-3[/tex]
Then make the function negative:
[tex]\begin{aligned}\implies -f(a)&=-(9a-3)\\&=-9a+3 \end{aligned}[/tex]
The sum of two numbers is 26. Their difference is 8. What are the two numbers?
Answerx=7
Step-by-step explanation:
Answer: 18
Step-by-step explanation: All you do is subtract 26 by 8 and you get 18. 18+8=26 :)
a car travel 221 miles in 4 hours and 15 minutes. How many miles does it travel per hour?
Answer: 52 miles per hour
Step-by-step explanation:
15/60=.25
4 hours
221 miles
221/4.25
52 miles per hour
The speed of a stream is 5 mph. A boat travels 9 miles upstream in the same time it takes to travel 19 miles downstream. What is the speed of the boat in still water?
Answer: 14 mph
Step-by-step explanation:
Let x = the speed of the boat in still water.
Then the speed of the boat relative the bank of the river is u-5 km/hb when it moves upstream, and u+5 when it moves downstream.
We can write the basic equation for travel and distance problems
Time = Distance/Speed in the form
t = 9/x-5 for moving upstream, and
t = 19/x+5 for moving downstream.
Since the left side, t, is the same in both equations, you get a single equation for u
9/x-5 = 19/x+5
To solve it, multiply both sides by the product (x-5)*(x+5) and simplify:
9*(x+5) = 19*(x-5),
9x + 45 = 19x - 95,
45 + 95 = 19x - 9x,
10x = 140,
u = 140/10 = 14 mph.
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The graph of a quadratic function with vertex (4, 3)
Find the domain and the range.
Write the domain and range using interval notation.
Answer:
Domain: (neg infinity, pos infinity)
Range: (pos infinity, 3]
Step-by-step explanation:
Solve for N. 5/3 = N/12
Answer:
N = 20
Step-by-step explanation:
5/3 = 1 2/3
20/12 = 1 8/20
They are equivalent
BASSICALY FRE POINTS!!!
Given the equation k over 12.6 equals 7.4, determine the value of k.
93.24
20.0
5.2
1.70
The value of k in the equation k over 12.6 equals 7.4 is A. 93.24
What is temperature?Temperature simply means the degree of hotness and coldness in a body.
Based on the information given, the equation is expressed as k over 12.6 equals 7.4. This will be:
k / 12.6 = 7.4
Cross multiply
k = 12.6 × 7.4
k = 93.24
Therefore, the correct option is A.
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The first derivative by implicit differentiation of 2 · x⁶ + 5 · x⁴ · y - 7 · x · y⁶ = 8 is y' = (7 · y⁶ - 20 · x³ · y - 12 · x⁵) / (5 · x⁴ - 42 · x · y⁵).
How to find the derivative of a given function by implicit differentiation
Implicit differentiation is a differentiation method for implicit functions that combines chain rule and derivative rules. First, define the original function:
2 · x⁶ + 5 · x⁴ · y - 7 · x · y⁶ = 8
Second, use chain rule and derivative rules in the expression of the previous step:
12 · x⁵ + 20 · x³ · y + 5 · x⁴ · y' - 7 · y⁶ - 42 · x · y⁵ · y' = 0
Third, clear y' within the resulting equation:
12 · x⁵ + 20 · x³ · y - 7 · y⁶ + (5 · x⁴ - 42 · x · y⁵) · y' = 0
(5 · x⁴ - 42 · x · y⁵) · y' = 7 · y⁶ - 20 · x³ · y - 12 · x⁵
y' = (7 · y⁶ - 20 · x³ · y - 12 · x⁵) / (5 · x⁴ - 42 · x · y⁵)
The first derivative is y' = (7 · y⁶ - 20 · x³ · y - 12 · x⁵) / (5 · x⁴ - 42 · x · y⁵).
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Find the x- and y-intercept of the line.
-1.2x + 8.2y = 39.36
The x- and y-intercept of the line -1.2x + 8.2y = 39.36 are -32.8 and 4.8
Finding x and y intercepts of a line:An intercept is a point at which the line crosses the axis of a graph. The point at which the line crosses the x-axis is known as the x-intercept, whereas if a line crosses the y-axis at a point, then the point will be the y-intercept.
Here we have,
-1.2x + 8.2y = 39.36
To find x - intercept substitute y = 0
=> -1.2x + 8.2(0) = 39.36
=> -1.2x = 39.36
=> x = 39.36/1.2
=> x = -32.8
To find y - intercept substitute x = 0
=> -1.2(0) + 8.2y = 39.36
=> 8.2y = 39.36
=> y = 39.36/8.2
=> y = 4.8
Therefore
The x- and y-intercept of the line -1.2x + 8.2y = 39.36 are -32.8 and 4.8
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