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3 years ago

Use the Pythagorean theorem to find the missing side length

Mathematics

2 answers:

Stella [2.4K]3 years ago

8 0

#1 is 4

#2 is 9

#3 is 16

#4 can't read the numbers

den301095 [7]3 years ago

5 0

1. 2.8 or 3
2. 4.2 or 4
3. 5.6 or 6
4. ??????

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Which ordered pair is a solution of the equation 4x-2y=16?

Lisa [10]

Substitute the coordinates of points to the equation.

$4x-2y=16$

$A.\ (-5,\ -3)\\\\4(-5)-2(-3)=16\\-20+6=16\\-14=16\ \ \ FALSE\\\\B.\ (-5,\ 3)\\\\4(-5)-2(3)=16\\-20-6=16\\-26=16\ \ \ FALSE\\\\C.\ (6,\ -4)\\\\4(6)-2(-4)=16\\24+8=16\\32=16\ \ \ \ FALSE\\\\D.\ (6,\ 4)\\\\4(6)-2(4)=16\\24-8=16\\16=16\ \ \ \ CORRECT\\\\Answer:\ \boxed{D.\ (6,\ 4)}$

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3 years ago

the perimeter of an equilateral triangle is 39 centimeters. What is the length of an altitude of the triangle ?

victus00 [196]

Answer: $h = 11.26cm$

Step-by-step explanation:

Equilateral triangle has equal sides, let the side be $xcm$ , then the perimeter is $3x$

Therefore:

$3x = 39$

$x = 39/3$

$x = 13cm$

To find the altitude , we will apply Pythagoras theorem , that is

$13^{2}=h^{2}+6.5^{2}$

Therefore:

$h^{2}=13^{2}-6.5^{2}$

$h^{2}=169-42.25$

$h^{2}=126.75$

take the square root of both sides

$h = 11.26cm$

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3 years ago

Sam mom is buying pizza for the party. Each pizza has 8 slices. If Sam and his friends each want 3 slices, how many pizza should

cluponka [151]

How do we know how many friends Sam had

8 0

3 years ago

Read 2 more answers

What are the steps for solving this

MatroZZZ [7]

Take -1-5 first and you'd get -6. then take 5×-6 and you'd get -30. finally take -30-40 and you'd get -70 as your answer

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3 years ago

A 180 degree rotation around the origin

ivanzaharov [21]

Answer:

Rotation of a point through 180°, about the origin when a point M (h, k) is rotated about the origin O through 180° in anticlockwise or clockwise direction, it takes the new position M' (-h, -k)

Step-by-step explanation:

IDK if this helped you out

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3 years ago