Please help me :) once again

Answer:

91.7

Step-by-step explanation:

V = π x r² x h

V = π x 2² x (8-0.7)

V = π x 4 x 7.3

V = 91.73

Answer: $2.75

Step-by-step explanation:

Zeke's helmet cost 3/5 x 28.75 = 17.25

Change = 20 - 17.25 = 2.75

Answer:

2.75

Step-by-step explanation:

Answer:

[tex]x=4[/tex]

Step-by-step explanation:

[tex]1.5(x + 4) - 3 = 4.5(x - 2)[/tex]

[tex]1.5x+6-3=4.5x-9[/tex]

[tex]1.5x+3=4.5x-9[/tex]

[tex]3+9=4.5x-1.5x[/tex]

[tex]12=3x[/tex]

[tex]x=4[/tex]

Answer:

[tex]x = 4[/tex]

Step-by-step explanation:

[tex]1.5(x + 4) - 3 = 4.5(x - 2) \\ 1.5x + 6 - 3 =4.5x - 9 \\ 6 - 3 + 9 = 4.5x - 1.5x \\ 12 = 3x \\ \frac{12}{3} = \frac{3x}{3} \\ x = 4[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

y = 3x^2 is compressed by 3.

As y = x^2 is the parent graph, you can see how big a difference 3 makes.

Hope this helps!

(Red: y = 3x^2)

(Blue: y = x^2)

The transformation for the given function is vertical compression or stretch.

The given functions are y=3x² and y=x².

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

The graph for the given functions can be determined as follows

To find the transformation, compare the expression to the parent function and check to see if there is a horizontal or vertical shift, reflection about the x-axis or y-axis, and if there is a vertical stretch.

Horizontal Shift: None

Vertical Shift: None

Reflection about the x-axis: None

Reflection about the y-axis: None

Vertical Compression or Stretch: Compressed

Therefore, the transformation for the given function is vertical compression or stretch.

To learn more about the function visit:

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Answer:

29400

Step-by-step explanation:

Im pretty sure

Answer:

30p^3−36p

Step-by-step explanation:

6(5p^3−6p)

=(6)(5p^3+−6p)

=(6)(5p^3)+(6)(−6p)

=30p3−36p

Answer:

Step-by-step explanation:

6(5p^3−6p)

(6)(5p^3+−6p)

(6)(5p^3)+(6)(−6p)

=30p^3−36p

This is not copied i did the work!

Answer:

[tex]7x+21[/tex]

Step-by-step explanation:

[tex]7(x + 3)[/tex]

[tex]7(x)+7(3)[/tex]

[tex]7x+21[/tex]

Answer:

7x + 21

Step-by-step explanation:

7 x X=7X

7 x 3=21

Answer:

x=236

Step-by-step explanation:

44+80+x=360

x=solve it

Answer:

I think it's A) x= - 2

Hope this helps..

The solution of the equation is,

⇒ x = - 2

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The equation is,

⇒ 3 (4x + 6) = 9x + 12

Now,

Solve the equation as;

⇒ 3 (4x + 6) = 9x + 12

⇒ 12x + 18 = 9x + 12

⇒ 12x - 9x = 12 - 18

⇒ 3x = - 6

⇒ x = - 6/3

⇒ x = - 2

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Answer:

the second one:

tan-1(xdegree)

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

(12g²h⁷)(3g⁻²h⁻⁴) = 12 * 3 * g²⁺⁽⁻²⁾ * h⁷⁺⁽⁻⁴⁾

                            = 36 * g⁰ * h³

                            = 36 * 1 * h³

                            = 36h³

Any variable or constant to the power of zero is 1

a⁰ = 1 ;    12⁰ = 1  ;   (-5)⁰ = 1

Answer:

a,c

Step-by-step explanation:

Answer:

5/6x = -10

=> 5/6x = -10/1

by cross multiplication

=> 6x × - 10 = 5 × 1

=> 6x = 5 × 1 / -10

=> 6x = 1/-2

=> x = 1/-2 ×6

=> x = 1/-12

Answer: A

Step-by-step explanation:

Answer:

81, x⋅ 3x is your correct answer!

Answer: 5 miles

Step-by-step explanation:

Answer: D

Step-by-step explanation:

A and C are linear equations therefore we can eliminate them.

We are left betwen C and D.

C.

x²=25

x=5, x=-5

For C, we can eliminate because when you solve for x, you get 2 linear equations. You may see the x² and think it's linear, but when you solve it, you get 2 linear equations.

We are left with D. Even if you graph it and it doesn't look like a parabola or quadratic, it is still a quadratic equaiton. The 1/ makes it split both ways.

Answer:

Slope is 1/2

Step-by-step explanation:

Slope Formula: [tex]\frac{y_{1}-y_{2}}{x_{1}-x_{2}} \\[/tex]

Plug in points: [tex]\frac{4-1}{8-2} =\frac{3}{6}=\frac{1}{2}[/tex]

Answer:

ummm i dont know but try 16 35/21

Step-by-step explanation:

Answer: x^4 /7^3x-6

Step-by-step explanation:

7x^4 * 7^5 / 7^3x

7x^4 * 1 / 7^3x-5

Reduce expression with 7

x^4 * 1 / 7^3x-6

= x^4 / 7^3x-6

Answer:

[tex]20\pi units^3[/tex]

Step-by-step explanation:

Answer:

V = 62.8 units³

Step-by-step explanation:

Once the area of a circle is:

[tex]A=\pi r^2[/tex]

The volume of a cylinder is:

[tex]V=\pi r^2 h[/tex]

where [tex]h[/tex] is the height of the cylinder.

Once, [tex]r=2 \text{ and } h=5[/tex]

[tex]V=3.14 \cdot 2^2 \cdot 5\\V=3.14 \cdot 20\\V=62.8 \text{ units cubed}[/tex]

Answer:

x=30°

Step-by-step explanation:

Angles 4x and 2x are supplementary, so 4x+2x must be equal to 180°.

Therefore, to solve this problem, we must use the equation, "4x+2x=180°.

4x+2x=180

6x=180

x=30°

I hope this helps.

Answer:

162

Step-by-step explanation:

V = LWH

L = 3

W = 6

H = 9

3 * 6 * 9 = 162

Answer:

I think the answer is 8

Step-by-step explanation:

Answer:

The height of trapezoid is 7km.

Step-by-step explanation:

Given that the area of trapezoid formula is A = 1/2×(a+b)×h where a and b represents the length and h is the height. By substituing the values, you are able to find the height :

[tex]area = \frac{1}{2} \times (a + b) \times h[/tex]

Let a = 4km,

Let b = 8km,

Let area = 42km²,

[tex]42 = \frac{1}{2} \times (4 + 8) \times h[/tex]

[tex]42 = \frac{1}{2} \times 12 \times h[/tex]

[tex]42 = 6 \times h[/tex]

[tex]6h = 42[/tex]

[tex]h = 7 \: km[/tex]

Answer: 7km

Step-by-step explanation:

Answer:

V=5

12tan(54°)ha2=5

12·tan(54°)·4·152≈516.14322

Step-by-step explanation:

Thanks me later

Hope this helps!!!

Answer:

10/3

Step-by-step explanation:

6 length is 2 height.

So 10(6+4) length is 10/3 height

Answer:

x = 10/3

Step-by-step explanation:

These two triangles are similar by AA similarity, as they share angle A, and both have right angles.

Not we can set up a ratio:

6/(6+4) = 2/x

6/10 = 2/x

3/5 = 2/x

Multiply both sides by 5x,

3x = 10

Divide both sides by 3:

x = 10/3

Answer:

-3y+8z

Step-by-step explanation:

Here we want to combine all the like terms together to simplify the expression:

2x-2y+5z-2x-y+3z=\\ 2x-2x-2y-y+5z+3z=\\ -3y+8z

Answer:

a

Step-by-step explanation:

Answer:

1/13

Step-by-step explanation:

In a deck of 52 cards, there are 4 kings

P(king) = number of kings / total cards

P (king) = 4/52

             = 1/13