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liubo4ka [24]
3 years ago
5

I'm sorry I don't know how to do this problem, and its the only one I don't understand could anyone help me.

Mathematics
1 answer:
kolbaska11 [484]3 years ago
3 0
You would multiply everything by 2. A dilation of 2 is an enlargement, or an increase in shape. If it was -2, it would be a reduction.

Multiply everything by 2:
(-2,3) = (-4,6) (3,4)= (6,8) (4,-1)= (8,-2)

I hope this helps you!

Brainliest answer is always appreciated!<span />
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The area of the rectangle shown is 24 square inches. how much longer is its length than its width?
Lina20 [59]
If one length is 6in, the other would be 4, since 6×4 is 24, which is the area of the rectangle. The length is 2 longer than the width, 6-4=2.
5 0
3 years ago
Read 2 more answers
Which of the following represents the correct expansion of (x + 2)^5?
otez555 [7]
(x + 2)^5 = (x + 2) (x + 2) (x + 2)(x + 2)(x + 2) =
(x2 + 4x + 4)(x2+4x+4)(x+2) = ( x4 + 4x3 + 4x2 + 4x3 + 16x2 + 16x + 4x2 +16x + 16)(x+2) = ( x4 + 8x3 + 24x2 + 32x + 16)(x+2) = ( x5 + 8x4 + 24x3 + 32x2 + 16x + 2x4 + 16x3 + 48x2 + 64x + 32) =
x5 + 10x4 + 40x3 + 80x2 + 80x + 32
Answer D
8 0
3 years ago
A circle with circumference 20 has an arc at 72 central angle. what is the length of the arc
Vsevolod [243]

Answer:

4 units

Step-by-step explanation:

\because \: l =  \frac{ \theta}{360 \degree}  \times c \\  \\  \therefore \: l =  \frac{72 \degree}{360 \degree}  \times 20 \\  \\ \therefore \: l =  \frac{72 \degree}{18\degree} \\  \\ \therefore \: l =  4 \: units

5 0
3 years ago
Type the correct answer in each box
Luba_88 [7]

Answer:

We know that the equation of the circle in standard form is equal to <em>(x-h)² + (y-k)² = r²</em> where (h,k) is the center of the circle and r is the radius of the circle.

We have x² + y² + 8x + 22y + 37 = 0, let's get to the standard form :

1 - We first group terms with the same variable :

(x²+8x) + (y²+22y) + 37 = 0

2 - We then move the constant to the opposite side of the equation (don't forget to change the sign !)

(x²+8x) + (y²+22y) = - 37

3 - Do you recall the quadratic identities ? (a+b)² = a² + 2ab + b². Now that's what we are trying to find. We call this process <u><em>"completing the square"</em></u>.

x²+8x = (x²+8x + 4²) - 4² = (x+4)² - 4²

y²+22y = (y²+22y+11²)-11² = (y+11)²-11²

4 - We plug the new values inside our equation :

(x+4)² - 4² + (y+22)² - 11² = -37

(x+4)² + (y+22)² = -37+4²+11²

(x+4)²+(y+22)² = 100

5 - We re-write in standard form :

(x-(-4)²)² + (y - (-22))² = 10²

And now it is easy to identify h and k, h = -4 and k = - 22 and the radius r equal 10. You can now complete the sentence :)

5 0
3 years ago
What is the value of the expression below?
lozanna [386]

Answer:

25x10^18/4   or    6.25x10^18

Step-by-step explanation:

2.5x10^33x5x10^-15/2

12.5x10^18/2

6 0
3 years ago
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