2 years ago

Need help with 3&4 pls

Mathematics

1 answer:

expeople1 [14]2 years ago

7 0

3a- 10° 3b- 55°
4a- 135° 4b- 45°

Complementary angles add up to 90°
Supplementary angles add up to 180°

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Please Help me ASAP VERY URGENT

jenyasd209 [6]

Answer:

A= 115 degrees

C= 50 degrees

Step-by-step explanation:

All angles are equal to 180 so the equation is:

180=4x-13+x+18+15

180=5x+20

160=5x

x=32

6 0

2 years ago

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The measures of the angles of a triangle are shown in the figure below. solve for x

Vlad1618 [11]

Answer:

67 degrees

Step-by-step explanation:

All angles in a triangle add up to 180 degrees. So...

23 + x + 90 = 180

113 + x = 180

x = 67 degrees

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2 years ago

In the diagram below, the perimeter of the triangle is equal to the perimeter of the square. What is the length of a side of the

kondaur [170]

The perimeter of each is the sum of the lengths of its sides.

Triangle Perimeter = 16 + 4x-3 +3x = 7x+13

Square Perimeter = 2x +2x +2x +2x = 8x

If these are equal, you have

$7x+13=8x\\\\13=x\qquad \mbox{subtract 7x}\\\\26=2x\qquad \mbox{multiply by 2}$

The length of a side of the square is 26 units.

3 0

2 years ago

Solve the equation for v<br> <img src="https://tex.z-dn.net/?f=y%3D%5Cfrac%7B8%7D%7Bav%7D%20%2B7" id="TexFormula1" title="y=\fra

My name is Ann [436]

Answer:

$v = \dfrac{8}{a(y - 7)}$

Step-by-step explanation:

$y = \dfrac{8}{av} + 7$

Subtract 7 from both sides.

$y - 7 = \dfrac{8}{av}$

Multiply both sides by v.

$v(y - 7) = \dfrac{8}{a}$

Multiply both sides by 1/(y - 7).

$v = \dfrac{8}{a(y - 7)}$

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2 years ago

Solve the volume formula V=lwh for h.

Alexeev081 [22]

V=lwh

v/lw=h

thats what it is.

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3 years ago