Laura wants to work out 30/29 of 60. Her answer is 58. Is her answer correct and why?

Answer:

Step-by-step explanation:

[tex](2x)^{2} +12.6^{2} =21^{2} \\\\4x^{2} +158.76=441\\\\4x^{2}441-158.76\\\\4x^{2} =282.24\\\\x^{2} =70.56\\\\x=8.4[/tex]

hope it helps....

have a great day :)

Answer:

slope:  [tex]\frac{1}{2}[/tex]

y-intercept: (0,-3)  

Step-by-step explanation:

First, place the equation in slope-intercept form to identify the slope and y-intercept easily. Isolate the y in the equation to do this:

[tex]4y = 2x-12\\\frac{4}{4} y = \frac{2}{4} x-\frac{12}{4} \\y = \frac{1}{2} x-3[/tex]

Now that the equation is in slope-intercept form, it is much easier to find the slope and y-intercept of the equation. Remember that the slope-intercept formula is [tex]y = mx + b[/tex].

In an equation written in slope-intercept form, the [tex]m[/tex], or the coefficient of the x-term, represents the slope. So, the slope of his equation is [tex]\frac{1}{2}[/tex]. Also, the [tex]b[/tex], or the constant on the right side of the equation, represents the y-intercept. So, the y-intercept of this equation is (0,-3).  

Answer:

4π

Step-by-step explanation:

Periodic graphs repeat the same pattern.  Here we have a cosine function which clearly repeats itself.  Start at (0, 1) and count the number of squares to the right before the graph looks the same; this occurs at (4π, 1).  x has increased from 0π to 4π.  Thus, the period is 4π.

b is cheaperrrrrrrrrrrrrrrrrrrrrrrrrrrrr

Answer:

The second option

Step-by-step explanation:

Since root 16 is an integer (4), the second option produces the fraction 4/5 which is rational.

Answer:

I agree with Cheryl.

24 ÷ 3 = 8

3 ÷ 24 = [tex]\frac{1}{8}[/tex]

Commutative property works for multiplication because when you multiply two numbers, you have repeated addition. No matter which way you add up the numbers, you will get the same result. When you divide, you are breaking up a certain number by a certain number. If they are not the same number, you will get a different result.

Answer:

Y-intercept is (0,8)

Step-by-step explanation:

Firstly, we need to get the equation of the line segment

We have the general equation as;

y = mx + b

m is the slope and b is the y-intercept

So for the slope between (9,6) and (-2,-1); we have

m = (y2-y1)/(x2-x1)

m = (-1-6)/(-2-9) = -7/-11 = 7/11

Mathematically, when two lines are perpendicular, their slopes have a product of -1

Let the slope of the second line be m

m * 7/11 = -1

7m = -11

m = -11/7

The equation of the second line is;

y = mx + b

y = -11x/7 + b

The line passes through the point (3.5,2.5)

So,

2.5 = -11/7(3.5) + b

2.5 = -5.5 + b

b = 2.5 + 5.5

b = 8

so the y-intercept of the perpendicular bisector is 8

Answer:

hundredths place

Step-by-step explanation:

hope this helps

Answer:

hundredths' place

Step-by-step explanation:

The first digit after the decimal represents the tenths place. (In this case, it's 9) The next digit after the decimal represents the hundredths place. In this case, it's 8 !

Answer:

22

Step-by-step explanation:

6^2=36

36*2=72

6*8=48

72-48=24

24-2=22

I hope this is right

Answer:

1.55 feet.

Step-by-step explanation:

From the question given above, the following data were obtained:

Angle R = 24°

Hypothenus = RS = 3.8 feet

Opposite = ST = x

The value of x can be obtained by using the sine ratio. This is illustrated below:

Sine R = Opposite / Hypothenus

Sine 24 = x / 3.8

Cross multiply

x = 3.8 × Sine 24

x = 3.8 × 0.4067

x = 1.55 feet

Thus, the Lenght ST is 1.55 feet.

Answer:

c= 3/4 but in decimal form it will be 0.75

Step-by-step explanation:

Answer:

The answer is 3/4.

Check the pic for explanation

thank you:)

if it is correct please mark me brainliest

Answer: J

Step-by-step explanation:

x=8, so substitute and Length=12 Width=9

Answer:

30ft

Step-by-step explanation:

Given data

Volume= 360 ft^3

Area= 12 ft^2

We know that the expression for volume is

Volume= Area*Height

Substitute

360= 12*h

h= 360/12

h= 30 ft

Hence the height of the prism is 30ft

Answer:

-48 b

Step-by-step explanation:

Answer:

Its height would be 7 meters.

Answer:

To find an answer in pi square the radius and multiply by pi

Step-by-step explanation:

To

find volume of a sphere = 4/3Πr³

Answer =17,164.2pi Am not sure but i hope its correct.

Answer:

A or b

Step-by-step explanation:

Answer:

Your slope is 1

Step-by-step explanation:

This is because you go up two boxes and to the right two boxes but then you have to simplify giving you a slope of 1

Answer:

give the full questions

Answer:

Subtract 2 pi*r^2 from either side of the equation giving you 

S - 2 * pi *r^2 = 2 * pi * r * h

Divide by 2 pi * r on either side of the equation which would give us

h = ( S - 2 pi r^2) / 2 pi r

We have made h the height of the surface cylinder when the formula of the surface area of a cylinder was presented to us.

The formula for h is [tex]\frac{s-2\pi r^{2} }{2\pi r}[/tex]

Given the formula for Surface area of cyclinder

S A = 2pir^2 + 2pirh,

where r is the radius of the base of the cylinder and h is the height of the cylinder.

We need to find h from the given formula

What is Surface area of cyclinder?

Surface Area = 2pir^2 + 2pirh,

Surface Area(S) = 2pir^2 + 2pirh,

S = 2×pi×r×r + 2×pi×r×h

Take  2×pi×r common

S = (2×pi×r)(r + h)

Divide both sides by 2×pi×r

S/(2×pi×r) = r + h

Shift r to left side to get h

S/(2×pi×r) - r =h

Therefore h = ( S - 2 pi r^2) / 2 pi r

To learn more about surface area problems click here :

https://brainly.com/question/16226827

#SPJ2

Answer:

The shortest possible perimeter is: [tex]4\sqrt{15}[/tex]

Step-by-step explanation:

Given

[tex]A = 15[/tex] --- area

Required

Find the shortest possible perimeter

Area is calculated as:

[tex]A=l * b[/tex]

This gives:

[tex]l * b = 15[/tex]

Make l the subject

[tex]l=\frac{15}{b}[/tex]

Perimeter is calculated as:

[tex]P =2(l + b)[/tex]

Substitute [tex]l=\frac{15}{b}[/tex]

[tex]P =2(\frac{15}{b} + b})[/tex]

Rewrite as:

[tex]P =2(15b^{-1} + b)[/tex]

Differentiate and minimize;

[tex]P' =2(-15b^{-2} + 1)[/tex]

Minimize by equating P' to 0

[tex]2(-15b^{-2} + 1) = 0[/tex]

Divide through by 2

[tex]-15b^{-2} + 1 = 0[/tex]

[tex]-15b^{-2} = -1[/tex]

Divide through by -1

[tex]15b^{-2} = 1[/tex]

Rewrite as:

[tex]\frac{15}{b^2} = 1[/tex]

Solve for b^2

[tex]b^2 = \frac{15}{1}[/tex]

[tex]b^2 = 15[/tex]

Solve for b

[tex]b = \sqrt{15[/tex]

Recall that: [tex]P =2(\frac{15}{b} + b})[/tex]

[tex]P = 2 * (\frac{15}{\sqrt{15}} + \sqrt{15})[/tex]

[tex]P = 2 * (\sqrt{15} + \sqrt{15})[/tex]

[tex]P = 2 * (2\sqrt{15})[/tex]

[tex]P = 4\sqrt{15}[/tex]

The shortest possible perimeter is: [tex]4\sqrt{15}[/tex]

Answer:

4

Step-by-step explanation:

Answer:

g(f(-9))=4

Step-by-step explanation:

This is a composite function so we need to first find the value of the function on the inside in order find the value of the composite function

f(-9)=x+7=-9+7=-2

we can put -2 instead of f(-9) in the composite function

g(-2)=(-2)^2=4

Answer:

I think it's 12 because 8+4 =12

Answer:

C. 50%

Step-by-step explanation:

Sana makatulong

Answer:

d. 60%

Explanation:

12 ÷ 20 × 100%

= 0.6 × 100%

= 60%

i hope this helps! :D do comment if you need me to clarify anything

Answer:

6 weeks

Step-by-step explanation:

100 + 5x = 10 + 20x

15x = 90

x=6

Answer:

i have the same question

Step-by-step explanation:

i have the same question

Answer:

area of rectangle is Length×breadth.....so area=l×b