4 years ago

Did I do the spinner correct? And I need help with these questions!1! Please

Mathematics

1 answer:

zmey [24]4 years ago

5 0

It looks right to me. you followed all the clues.

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(x + 5)(x – 5)<br> Multiply

Vsevolod [243]

Answer:

${x}^{2} - 25$

Step-by-step explanation:

$(x + 5)(x – 5) \\ \\ = {(x)}^{2} - {(5)}^{2} \\ \\ = {x}^{2} - 25$

8 0

3 years ago

Read 2 more answers

What is the perimeter, in centimeters, of Trian

inessss [21]

For the given right triangle, the perimeter is 60cm, so the correct option is D.

<h3></h3><h3>How to get the perimeter of the triangle?</h3>

We can see a right triangle, by using the Pythagorean theorem we can get the missing cathetus:

$a^2 + (20cm)^2 = (25cm)^2$

$a = \sqrt{(25cm)^2 - (20cm)^2} = 15cm$

Now we know the measure of the 3 sides, then the perimeter of the given triangle is:

P = 15cm + 20cm + 25cm = 60cm

The perimeter of the triangle is 60cm.

If you want to learn more about right triangles:

brainly.com/question/2217700

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6 0

2 years ago

Use the coordinates to find the perimeter of the rectangle. D(1,2), E(1,7), F(4,7), G(4,2) *

JulsSmile [24]

Answer:

Step-by-step explanation:

DE is the vertical line x=1. It extends between y=2 and y=7, a distance of 5 units.

EF is the horizontal line y=7. It extends from x=1 to x=4, a distance of 3 units.

Then the perimeter of half the rectangle is 5+3 = 8 units.

The perimeter of the rectangle is 2·8 = 16 units.

7 0

4 years ago

Find the slope, m, and y-intercept, b, for the graph of the linear equation represented by the table below.

Eduardwww [97]

Answer:

y = -3x - 2

Step-by-step explanation:

M: -3

B: -2

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3 years ago

Unit rate of 2550 gallons in 30 days

MakcuM [25]

Answer is 85 gallons per day

4 0

3 years ago