I really need help with this please help best aswer gets brainliest

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:

29400

Step-by-step explanation:

Im pretty sure

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:

-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:

I think the answer is 8

Step-by-step explanation:

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:

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:

[tex] \boxed{2 {x}^{2} - 11x + 11} [/tex]

Step-by-step explanation:

[tex] = > ( {x}^{2} - 11x + 6) + ( {x}^{2} + 5) \\ \\ = > {x}^{2} - 11x + 6 + {x}^{2} + 5 \\ \\ = > {x}^{2} + {x}^{2} - 11x + 6 + 5 \\ \\ = > 2 {x}^{2} - 11x + 11[/tex]

Answer:

2x^2 - 11x +11

Step-by-step explanation:

combine like terms

Answer:

a,c

Step-by-step explanation:

51

Step-by-step explanation:

57 + (-6)=51

since 6 is negative you subtract 6 from 57

Answer:

the second one:

tan-1(xdegree)

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

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:

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:

More juice.

Step-by-step explanation:

The difference between the greatest and least amount of juice is that there is more juice in one cup. If this is not the answer you were looking for, please let me know, and I am sorry for the inconvienience.

Answer:

60 miles

Step-by-step explanation:

f(x) = 2 + 0,5 * m + 6

38 = 2 + 0,5 * m + 6

38 = 8 + 0,5 * m

30 = 0,5 * m

m = 60 miles

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: 5 miles

Step-by-step explanation:

Answer:

How many days do you exercise in a week?

Step-by-step explanation:

The topic is students' weekly exercise so the question has to be about that. also, there are up to 7 days worth of data and there a 7 days in a week. so she most likely asked the question, "How many days do you exercise in a week?".

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:

162

Step-by-step explanation:

V = LWH

L = 3

W = 6

H = 9

3 * 6 * 9 = 162

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:

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:

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:

https://brainly.com/question/28303908.

#SPJ5

Answer:

(x (8 x^2 - 20 x + -33))/(2 (x - 3))

Step-by-step explanation:

Simplify the following:

4 x^2 + 2 x - (42 x)/(4 (x - 3))

The gcd of 42 and 4 is 2, so 42/4 = (2×21)/(2×2) = 2/2×21/2 = 21/2:

4 x^2 + 2 x - x/(x - 3) 21/2

Put each term in 4 x^2 + 2 x - (21 x)/(2 (x - 3)) over the common denominator 2 (x - 3): 4 x^2 + 2 x - (21 x)/(2 (x - 3)) = (8 (x - 3) x^2)/(2 (x - 3)) + (4 (x - 3) x)/(2 (x - 3)) - (21 x)/(2 (x - 3)):

(8 x^2 (x - 3))/(2 (x - 3)) + (4 x (x - 3))/(2 (x - 3)) - (21 x)/(2 (x - 3))

(8 (x - 3) x^2)/(2 (x - 3)) + (4 (x - 3) x)/(2 (x - 3)) - (21 x)/(2 (x - 3)) = (8 (x - 3) x^2 + 4 (x - 3) x - 21 x)/(2 (x - 3)):

(8 x^2 (x - 3) + 4 x (x - 3) - 21 x)/(2 (x - 3))

Factor x out of 8 (x - 3) x^2 + 4 (x - 3) x - 21 x, resulting in x (8 (x - 3) x^(2 - 1) + 4 (x - 3) - 21):

(x (8 x^(2 - 1) (x - 3) + 4 (x - 3) - 21))/(2 (x - 3))

2 - 1 = 1:

(x (8 x (x - 3) + 4 (x - 3) - 21))/(2 (x - 3))

8 x (x - 3) = 8 x^2 - 24 x:

(x (8 x^2 - 24 x + 4 (x - 3) - 21))/(2 (x - 3))

4 (x - 3) = 4 x - 12:

(x (4 x - 12 + 8 x^2 - 24 x - 21))/(2 (x - 3))

Grouping like terms, 8 x^2 + 4 x - 24 x - 21 - 12 = 8 x^2 + (-24 x + 4 x) + (-12 - 21):

(x (8 x^2 + (-24 x + 4 x) + (-12 - 21)))/(2 (x - 3))

4 x - 24 x = -20 x:

(x (8 x^2 + -20 x + (-12 - 21)))/(2 (x - 3))

-12 - 21 = -33:

Answer: (x (8 x^2 - 20 x + -33))/(2 (x - 3))

Answer:

x=236

Step-by-step explanation:

44+80+x=360

x=solve it

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: