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3 years ago

10

Simplify and evaluate (must be fraction)

1 answer:

brilliants [131]3 years ago

4 0

The answer you're looking for is 5, when you simplify the expression

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The area of a circle is 49π m2. What is the radius?

olga55 [171]

Answer: r= 3.95

Explanation: A=πr2

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3 years ago

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The blue portion of the American flag is known as the union. Using the measurements in the diagram, determine if the rectangle e

Nonamiya [84]

They are not similar.

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3 years ago

A triangle has vertices at (-9,2), (-9,-6), (-3,-6). What is the perimiter of the triangle in units?

vladimir2022 [97]

Answer:

The perimeter is 24 units

Step-by-step explanation:

Given

$A = (-9,2)$ --- $(x_1,y_1)$

$B = (-9,-6)$ --- $(x_2,y_2)$

$C = (-3,-6)$ --- $(x_3,y_3)$

Required

Determine the perimeter

To do this, we calculate the distance AB, BC and AC.

Distance is calculated as:

$d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2$

So, we have:

$AB = \sqrt{(-9 - -9)^2 + (2 - -6)^2$

$AB = \sqrt{64$

$AB = 8$

$BC = \sqrt{(-9 - -3)^2 + (-6 - -6)^2$

$BC = \sqrt{36$

$BC = 6$

$AC = \sqrt{(-9 --3)^2 + (2 --6)^2$

$AC = \sqrt{100$

$AC = 10$

So, the perimeter (P) is:

$P = AB + BC + AC$

$P =8 + 6 + 10$

$P =24$

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