Answer:
13
Step-by-step explanation:
hey take a deep breath! you got this!
it's really simple if you use the format PEMDAS
P- parentheses
E-exponents
M-Muliplication
D-divison
A-addition
S-subtraction
or mostly used
P
E
M or D
A or S
(depends from which side just start Ex 2-1+8 you wouldn't do the plus first but the subtraction because we're going left to right. If it's 2x8-6+10 then we do multiplication first cause that step comes first, the minus then addition! hope that isn't to confusing!)
ok so our equation is 20÷(5x2/5)+3
whats our first step? remember PEMDAS!
Its Parenthesis! so first we do the equation (5x2/5)
since multiplication and division are in the same "category" we go left to right
so first we do 5x2=10 and then we do 10/5 which is equal to 2!
ok now we add back the rest of our equation!
20÷2+3 since we already solved the Parenthesis
now what come first? division or addition?
its division because.. once again... PEMDAS!!
So now we do 20÷2 which is equal to 10!
now whats left is to add 3!
and 10+3 is equal to .... 13!!!
I know it seems like a lot but you'll get the hang of it! just take it easy and take your time :)
HELP ASAP PLSSSS!!!!
If you need an image im putting it down below
Which line best represents the line of best fit for this scatter plot?
Graph shows numbers from 0 to 10 at increments of 1 on the x axis and numbers from 0 to 18 at increments of 2. Scatter plot shows ordered pairs 1, 1 and 2, 4 and 3, 12 and 4, 6 and 5, 8 and 6, 8 and 7, 12 and 8, 10 and 9, 14 and 10, 18. A line labeled P joins ordered pair 0, 1 and 9, 18. A line labeled Q joins ordered pairs 0, 1 and 10, 16. A line labeled R joins ordered pairs 0, 1 and 10, 10. A line labeled S joins ordered pairs 0, 1 and 10, 6.
Line P
Line Q
Line R
Line S
This line is fairly close to the majority of the points shown. Unfortunately there's an outlier left out, but it isn't too far from the main cluster. The further the outlier is, the more pull it will drag the line away from the main cluster.
Line Q
The suitable line should contain most dots near itQ contains atleast 4 around it.No other has soQ is correct
What is the phenotype of a Squibble that is heterozygous for the trait of fur color?
Trait
AA
Aa
Number of Fingers 4
4
Fur color
Blue
Tail Length
Short
Eye Color
Brown
Green
Short
Brown
3
Gray
Long
Green
Answer:
charlie brown chicken sandwich
Step-by-step explanation:
Using the image above, what is the measure of Side AC? Round to the nearest hundredth
To solve this problem, we just have to use trigonometric ratios and apply which of the ratios is needed here and proceed to solve. The value of side AC is 2.85 units
Trigonometric RatioIn the given diagram, we have the value of angle and hypothenuse and we are required to find the adjacent side of the triangle.
Data;
Angle = 32.9 degreesHypothenuse = 3.4Let's use cosine rule for this.
[tex]cos\theta = \frac{adjacent}{hypothenuse}[/tex]
Proceed to substitute the values into the equation and solve.
[tex]cos 32.9 = \frac{AC}{3.4} \\AC=3.4cos32.9\\AC = 2.85[/tex]
From the calculations above, the value of side AC is 2.85 units
Learn more on trigonometric ratio here;
https://brainly.com/question/11967894
#SPJ1
if 110% of a number is 528, then the number is:
a) 475.2
b) 52.8
c) 480
d) 580.8
e) 475
Answer:
c) 480
Step-by-step explanation:
Any percentage can be converted to a number ratio by dividing by 100%.
E.g. 100%/100% = 1
Following this concept, we can find the equivalent of 110% :
110%/100% = 1.1
Since 528 is 1.1 times the number we are looking for, we just need to divide 528 by 1.1 to find our number. This is because 1.1/1.1 = 1
528/1.1 = 480
Hope this helped!
6 times 10^5 is how many times as as large as 3 times 10^3?
Answer:
200
Step-by-step explanation:
(6 × 10^5) / (3 × 10^3) = 6/6 × 10^5/10^3 = 2 × 10^2 = 200
Answer:
200
Step-by-step explanation:
(6 × 10^5) / (3 × 10^3) = 6/6 × 10^5/10^3 = 2 × 10^2 = 200
how do I find the x intercepts and vertex of y=(x+3)(x+5)-
Answer:
See below ~
Step-by-step explanation:
Finding the x-intercepts :
y = 0 is the condition for an x-intercept0 = -(x + 3)(x + 5)x + 3 = 0 ⇒ x = -3x + 5 = 0 ⇒ x = -5The x-intercepts are : (-3, 0) and (-5, 0)Finding the vertex :
Expand the polynomialy = -(x + 3)(x + 5)y = -(x² + 3x + 5x + 15)y = -(x² + 8x + 15)y = -x² - 8x - 15Vertex = (h, k)h = -b/2a = 8/2(-1) = -4k = -D/4ak = -(-4 + 3)(-4 + 5)k = -(-1)(1)k = 1The vertex is : (-4, 1)Write the equation of a line perpendicular to y=-12x+2 going through (0,-1)
[tex]\rule{50}{1}\large\blue\textsf{\textbf{\underline{Question:-}}}\rule{50}{1}[/tex]
Write the equation of a line perpendicular to y=-12x+2 going
through (0, -1)
[tex]\rule{50}{1}\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}\rule{50}{1}[/tex]
First, let's take a look at our provided information:-
A line [tex]\text{y=-12x+2}[/tex]A point (0, -1)The line [tex]\text{y=-12x+2}[/tex] is perpendicular to the line that goes through (0, -1)If two lines are perpendicular to each other, their slopes are opposite reciprocals of each other.
So we take the slope of the given line, which is -12, change its sign from minus to plus:-
[tex]\Large\textit{12}[/tex]
And now, We flip the number over:-
[tex]\Large\text{$\displaystyle\frac{1}{12}$}[/tex]
Now that we've found the slope of the line, let's find its equation.
The first step is to write it in point-slope form as follows:-
[tex]\longmapsto\sf{y-y_1=m(x-x_1)}[/tex]
Replace letters with numbers,
[tex]\longmapsto\sf{y-(-1)=\displaystyle\frac{1}{12}(x-0)}[/tex]
On simplification,
[tex]\longmapsto\sf{y+1=\displaystyle\frac{1}{12} (x-0)}[/tex]
On further simplification,
[tex]\longmapsto\sf{y+1=\displaystyle\frac{1}{12} x}[/tex]
Subtracting 1 on both sides,
[tex]\longmapsto\sf{y=\displaystyle\frac{1}{12} x-1}[/tex]
[tex]\Uparrow\texttt{Our equation in slope-intercept form}[/tex]
Good luck with your studies.#TogetherWeGoFar
[tex]\rule{300}{1}[/tex]
Hunter misses 10% of the free throws he attempts in a season. How many total free throws did he attempt if he missed 54?
Answer:
540
Step-by-step explanation:
If you divide 540 by 100 (100%) you get 5.4 then multiply it by 10 (10%) to get 54 again. THIS WAS TO CHECK TO GET: 10% or 100% is 10 so multiply 54•10=540
Hope this helps! ;-)
Which is the graph of g(x) = (0.5)* + 3 – 4?
Answer:
The graph will be an exponential function that crosses the y-axis at about (0, -4).
Which fraction and decimal are equivalent to 10^-3
Answer:
1/1000, 0.001
1/1000
Convert the negative exponent of base 10 into decimal: move to the left thrice
=0.001
A recipe calls for One-fourth cup of broth. The largest volume-measuring tool that Tabitha has is a teaspoon. She knows that there are 16 tablespoons in 1 cup and 3 teaspoons in 1 tablespoon. How many teaspoons of broth should she use?
1 and one-third teaspoons
12 teaspoons
19 teaspoons
21 and one-third teaspoons
Answer:
12 teaspoons
Step-by-step explanation:
In 1990, the population of Math Valley was 15,000. If the population is increasing at an annual rate of 2.4%, what was the population in 1965?
if this helped you say meow
i may be wrong but i think you should divide 2.4% by the 15000 wicth is
0.00000016 or just 0.16 or maybe muptication 2.4% x15000 whicth is 360 hope this helps :D
Help with these geometry problems, please! 10th grade geometry
Step-by-step explanation:
3.
the left cup is the summary of 2 cylinders.
the right cup is just a cone.
the volume of a cone is
pi×r²×h/3 = pi×3.5²×6/3 = pi×12.25×2 = pi×24.5 =
= 76.93 in³
the volume of a cylinder is
pi×r²×h
the first cylinder is
pi×3²×1.5 = pi×9×1.5 = pi×13.5 = 3.14×13.5 = 42.39 in³
the second cylinder is
pi×2²×2.25 = pi×4×2.25 = pi×9 = 28.26 in³
in total the cup has
42.39 + 28.26 = 70.65 in³
so, the cone has the larger volume by 6.28 in³ ≈ 6 in³.
that would be 3.479827 fl.oz. ≈ 3 fl.oz. of water.
I have no idea on what scale you need to quantify the amount of water. I just guessed.
2.
here we need the surface area.
the object consists of a large prism (or block) and a cylinder.
we don't need the bottom area for neither, as the cylinder is simply on top of the prism, and its bottom is not going to be painted either.
we need 5 sides of the prism :
front and back
left and right
top (and we need the full top, because the area the cylinder is covering up is the same area for the top of the cylinder).
and the we need to add only the side wall of the cylinder the "mantle".
so,
front and back rectangles are 10×3 × 2 = 60 in²
left and right rectangles are 10×3 × 2 = 60 in²
the top rectangle (square) is 10×10 = 100 in²
the cylinder mantle is
circumference of the circle × height
2×pi×r×h = 2×pi×4×6 = 3.14×48 = 150.72 in²
so, in total we have
60 + 60 + 100 + 150.72 = 370.72 in² ≈ 371 in²
Answer:
Question 2: 320.48 in^2
Question 3: 6.28 in^3
Step-by-step explanation:
Question 2)
The question tells us that the shape will be covered in paint. This means that we need to find the surface area instead of volume. In the question, I’ll find the surface area of the two individual shapes (The cylinder and the rectangular prism) and take away parts that will not be covered in paint.
Rectangular Prism
1. ((10x10)+(10x3)+(10x3))x2 — All rectangular prisms have 2 sides with the same area. Since there are 6 sides total, all we need to do is find 3 sides of different sizes and multiply them by 2. The number we get is 320 in^2.
2. We will not be painting the bottom, so we can take the area of the bottom away. The area of the bottom is 10x10, which is 100. 320 - 100 is 220 in^2.
3. We are also not painting the area where the cylinder is touching the top (The circle-shaped area). The formula of finding the area of a circle is radius x radius x pi. Since the radius is 4 and pi can be rounded to 3.14, the area of the circle will be 4x4x3.14, which is 50.24 in^2. We can take that away from 220, so 220 - 20.24 is 169.76 in^2.
Cylinder
1. 4x4x3.14 — We know that one side of the cylinder (The base) will not be painted, so all we need to do is find the area of one of the bases. Radius x Radius x pi, in this case, is 50.24 in^2.
2. (((4+4)x3.14)x6) — Now we need to find the area of the side of the cylinder. The area of the side is base x height. The base length is the perimeter of the circle. The equation of the circle perimeter is (radius + radius) x pi. In numbers, it will be 8x3.14 which is 25.12. The height of the side is 6, so the equation will be 25.12 x 6, which is 150.72.
3. The surface area of the cylinder (excluding the base at the bottom) is 150.72 in^2.
Since the rectangular prism and the cylinder is stuck together and is considered as a whole, we add the two numbers together. 169.76 + 150.72 = 320.48 in^2!
Question 3)
The amount of water the cups can hold is the same size as the volume of individual cups. In order to find out the amount of water each cup can hold, we need to find the volume first.
Cup #1
1. (2x2x3.14)(2.25) — This is the base times the height of the bottom cylinder. The formula to find a circle is radius x radius x pi, and the height was 2.25. The volume of this shape will be 28.26 in^3.
2. (3x3x3.14)(1.5) — The area of the bottom is radius x radius x pi, and the height was 1.5 If we multiply all of these numbers together, we get 42.39 in^3.
3. Now that we found the two cylinders of the first cup, we can add them together. 28.26 + 42.39 = 70.65.
4. The area of cup #1 is 70.65 in^3.
Cup #2
1. (3.5 x 3.5 x 3.14)(6)(1/3) — The formula for finding the area of a cone is base x height x 1/3. The area of the base is radius x radius x pi, and the height is 6. Then we multiply by 1/3 (or divide by 3). Then, we get 76.93 in^3.
2. The volume of cup #2 is 76.93 in^3.
The question asks: How much more water will the larger cup hold?
Comparing 70.65 in^3 (First cup) and 76.93 in^3 (Second cup), we know that the second cup is bigger. To find the difference in the amount of water it can hold, we can subtract 70.65 from 76.93. This equals 6.28 in^3.
The final answer for Question 3 will be 6.28 in^3!
Mike paid $\$1.25$ for a stamp three years ago. He was just offered double that amount for the stamp. Assuming the stamp's offer price doubles every three years, how many dollars will he be offered in 12 more years
Answer: $40
Step-by-step explanation:
If the worth of the stamp is double that of its original price 3 years ago ($1.25), the current price of the stamp should be $2.50. If that doubles every 3 years the answer should look something like this:
3 years: $5 (2.50X2=5)
6 years: $10 (5X2=10)
9 years: $20 (10X2=20)
12 years $40 (20X2=40)
In 12 years the stamp will be worth $40.
Nathaniel bought headphones online for $22. He used a coupon code to get a 40% discount. The website also applied a 10% processing fee to the price after the discount. How much was the discount, in dollars and cents?
Answer:
8.80 if it's the 40°/.
2.20 if it's the 10°/. processing fee
13.20 for how much he paid
prove that the point [1,2] is equidistance from the point [4,-2], [5,-1] and [-2,6]
Step-by-step explanation:
Proof: equidistance means at an equal distance from two points
so: Take the distance formula and then plug the values in and compare.
The weights of bushels of corn produced by a large farm are approximately normally distributed with a mean of 89.46 pounds and a standard deviation of 2.31 pounds. A store is buys 5 bushels of corn from the farm. Assume the 5 bushels the store receives is a random sample of all bushels of corn the farm produces. What is the approximate probability that the 5 bushels will have a mean weight of more than 90 pounds
The approximate probability that the 5 bushels will have a mean weight of more than 90 pounds is 0.41
How to determine the probability?The given parameters are:
Mean, μ = 89.46
Standard deviation, σ = 2.31
The z-score at x = 90 is calculated using
[tex]z = \frac{x - \mu}{\sigma}[/tex]
This gives
[tex]z = \frac{90 - 89.46}{2.31}\\[/tex]
Evaluate
z = 0.234
The probability is then calculated as:
P(x >90) = P(z > 0.234)
From z table of probabilities, we have:
P(x >90) = 0.41
Hence, the approximate probability that the 5 bushels will have a mean weight of more than 90 pounds is 0.41
Read more about probability at:
https://brainly.com/question/251701
#SPJ4
PLEASE HELP!! BOTTOM QUESTION!!
Answer:
7/10
Step-by-step explanation:
There are 20 students in the class.
The scores are :
100, 95, 88, 62, 74, 90, 100, 58, 72, 60, 85, 90, 70, 72, 54, 100, 60, 80, 75, 51
* scores ≥ 70 have been highlighted in bold
Out the 20, 14 students have passed.
Hence, the fraction of students passed :
14/207/10The formula for the area of a trapezoid is A = /h(b₁ + b₂). Which equations are
equivalent to the formula?
2A
Oh
b₁+ b₂
2A
0b₁ = ²4-b₂
2A
0_b₂ = 24-h
b₁
=
Answer:
Based on hint and given formula, we can complete the problem. The question asks for square feet of grass so we know that we are solving for the area, A. It also tells us the height (looking downward) of the field is 75 ft,h, while the two bases are 125 ft and 81 ft (b1 and b2). So we can solve the equation. A = 75((125+81)/2) A = 75(206/2) A = 75(103) A = 7725 The area of the field is 7725 square feet.
Step-by-step explanation:
The equivalent equations of the trapezoid are:
h = 2A / (b₁ + b₂)
b₁ = 2A / h - b₂
b₂ = 2A / h - b₁
A = (b₁ + b₂) x h / 2
What is a trapezium?It is a quadrilateral that has one pair of parallel sides and a height.
The area is calculated as 1/2 x the sum of the parallel sides x height.
Examples:
Area of a trapezium that has the parallel sides as 3 cm and 4 cm and a heght o 5 cm.
Area = 1/2 x (3 + 4) x 5
Area = 1/2 x 7 x 5
Area = 35/2 = 17.5 cm^2
We have,
The formula for the area of a trapezoid can be rearranged in different ways to express the same relationship between the height, the bases, and the area.
Here are a few equivalent equations:
h = 2A / (b₁ + b₂) (solve for h)
b₁ = 2A / h - b₂ (solve for b₁)
b₂ = 2A / h - b₁ (solve for b₂)
A = (b₁ + b₂) x h / 2 (multiply both sides by 2 and divide by h)
These equations can be used interchangeably to calculate the area, height, or base of a trapezoid, depending on which variables are known or given.
Thus,
The equivalent equations are:
h = 2A / (b₁ + b₂)
b₁ = 2A / h - b₂
b₂ = 2A / h - b₁
A = (b₁ + b₂) x h / 2
Learn more about trapezium here:
https://brainly.com/question/22607187
#SPJ5
8. (06.04 MC)
Calculate the area of triangle ABC with altitude BD, given A (-6,0), B (0,0), C (0,6), and D (-3,3). (5 points)
18 square units
21 square units
9 square units
18.5 square units
Check the picture below.
the area of the triangle whose base is AC and height is BD, is the same area of the triangle whose base is AB and altitude is BC, namely
[tex]A=\cfrac{1}{2}(\stackrel{b}{6})(\stackrel{h}{6})\implies 18[/tex]
see picture 40 points
Answer:
volume = 216cm
Step-by-step explanation:
V = (1/2) × b × h × l
V = 1/2 × 6 × 8 × 9
v=216
Answer:
216 cubic centimeters
Step-by-step explanation:
To calculate the volume of a triangular prism, we can use the formula:
V = (length x width x height) / 2
To solve this problem, in particular, all we have to do is substitute the values:
V = (8 x 6 x 9) / 2
V = 216 cubic centimeters
Hope this helps!!
solve for x:2x^2-5x-3=0
Answer:
The value of x = 3 or -1/2
Step-by-step explanation:
2x²-5x-3=0
=> 2x² - 6x + x - 3 =0
=> 2x ( x - 3) + 1 ( x -3) =0
=> (2x+1) ( x-3) =0
x = 3 or x = -1/2
I need help understanding this, please explain it with the answer.
Suppose y varies inversely with x, and y = −3 when x = 14.
What is the value of y when x = −7?
This is the last question on my HW, and I'm tired, so help would be greatly appreciated :)
Using a proportional relationship, it is found that when x = -7, the value of y will be of y = 6.
What is a proportional relationship?A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:
y = kx
In which k is the constant of proportionality.
When y varies inversely with x, the rule is given by:
[tex]y = \frac{k}{x}[/tex]
y = −3 when x = 14, hence we use this to find k.
[tex]-3 = \frac{k}{14} \rightarrow k = -42[/tex]
Then:
[tex]y = -\frac{42}{x}[/tex]
Then when x = -7, y = -42/-7 = 6.
More can be learned about proportional relationships at https://brainly.com/question/10424180
#SPJ1
Which expression is equivalent to 50E(n(41+3))?
n=1
Answer:
its D
Step-by-step explanation:
equivalent of 50En-1+n(4n+3))is4{50(50+1)(2×60+1)+3{50(51)_2}
need help on this one!!
Step-by-step explanation:
the square root of x squared is x.
this means the( cube root of x ) to the power of 6 is what we need
Determine the general solution for sin(x-30°) = cos 2 x
Use the following data set to answer questions 9-16:
11, 18, 8, 15, 24, 14 9.
Identify the median. Round to the nearest tenth.
Answer:
The answer is 14
Step-by-step explanation:
Put the numbers in order from least to greatest
9,8,11,14,15,18,24
Then you find the number in the middle and in this case that number would be 14
Hope this helps:)....if not then sorry for wasting your time and may God bless you:)
A laptop computer is purchased for 1700 after each year the resale value decreases by 25 percent. what will the resale value be after 3 years?
I need help with math!!! please help
Answer:
x = 10
Step-by-step explanation:
The sum of the angles of a triangle is 180 degrees
6x-6 + 7x+1 +55 = 180
Combine like terms
13x+50=180
Subtract 50 from each side
13x+50-50=180-50
13x = 130
Divide by 13
13x/13 =130/13
x = 10
The answer is A!
From this, we will get the equation
(13x -5) + 55 = 180
+ 5 on both sides
13x + 55 = 185
-55 on both sides
13x = 130
Divide by 13 on both sides
x = 10
i need help please thanks
I will give brainlessly
~Answer~
_____________________________________
1. yes ±4
2. no, it's between 9 and 4
3. no, it's between 25 and 9
4. yes ±7
5. yes ±11
6. no, it's between 81 and 64
~Step-by-step explanation~
_____________________________________
ok I'll walk you through this
1. x²=16
x = ±4 because (-4)(-4) is 16 and (4)(4) is also 16
4. x²=49
x=±7 because (-7)(-7)=49 and (7)(7) is also 49
5. x²=121
x=±11 because (-11)(-11)=121 and (11)(11)=121.
_____________________________________
Hope this helps and have a good day!
P.S. Brainliest :)