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3 years ago

15

Right now Seth's age is 4/5 the age of his brother Eric. Twenty-one years ago, Eric was twice as old as Seth. What are their age

s now?

1 answer:

ikadub [295]3 years ago

8 0

The answer to this question is 19

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a manufacturer uses a mold to make a part in the shape of a triangular prism. The dimensions of this part are shown below. Whic

VMariaS [17]

To estimate the volume of Thai triangular prism you will use the formula for finding the volume.

V=Bh, where B is the area of the base and h is the height of the prism.

V = (1/2 x 12.6 x 1.6) x 10.75
V = 108.36 cubic mm

You answer is approximately 108 cubic millimeters.

8 0

3 years ago

Read 2 more answers

Will give brainliest!!

yawa3891 [41]

Answer:

$r=\frac{9\cos \theta}{\sin^2 \theta}$

Step-by-step explanation:

The given equation in rectangular coordinates is;

$y^2=9x$

We use the relation;

$x=r\cos \theta$

and

$y=r \sin \theta$

This implies that;

$(r \sin \theta)^2=9(r \cos \theta)$

$r^2 \sin^2 \theta=9r \cos \theta$

Divide through by r to get;

$r \sin^2 \theta=9\cos \theta$

Divide both sides by $\sin^2 \theta$

$r=\frac{9\cos \theta}{\sin^2 \theta}$

8 0

3 years ago

Whats 2 other ways to write this equation:<br> 40 = 19+7x

hodyreva [135]

Answer:

1: 7x+19=40

2: 19+7x=40

Step-by-step explanation:

7 0

3 years ago

What is the x-intercept of a parabola also called

aliya0001 [1]

Answer:

maximum point

Step-by-step explanation:

7 0

2 years ago

Angles R and S are complementary. If angle R is = 4x - 20 and angle S = 6x - 7, then angle R measures ___ degrees.

Shalnov [3]

Answer:

26.8°

Step-by-step explanation:

4x - 20 + 6x - 7 = 90

10x -27 =90

10x = 90+27

10x= 117

x = 11.7

so, the angle R = 4x-20 =4(11.7)-20

= 46.8-20 = 26.8°

6 0

2 years ago