3 years ago

The radius of a circle is never a chord true or false

1 answer:

8 0

True, because the chord connect 2 points of the circumference, but radius connect the center and a point on the circumference.

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I need the lateral area, total area, and the volume. Would greatly appreciate your help!

iVinArrow [24]

la 4gStep-by-step im so weird

4 0

2 years ago

The two cones below are similar. What is the height of the smaller cone?

Ugo [173]

Given that the two cone are similar, then
3/7 = x/5
7x = 15
x = 15/7

6 0

3 years ago

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Mary is building a sandcastle with rectangular prism molds. One mold is 4 inches long, 6 inches wide, and 2 inches tall. The oth

Fed [463]

Answer:

63 cubic inches

Step-by-step explanation:

You have to first find the volume of each mold:

6 × 4 × 2= 48 cubic inches

3 × 5 × 1= 15 cubic inches

Add these two volumes together to find the overall volume of the whole sand castle.

48+15= 63 cubic inches

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3 years ago

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NEED HELP ASAP PLEASE AND THANK YOU!!!

marysya [2.9K]

Step-by-step explanation:

10²+11²

=100+121

=221

=√221

=14.87

7 0

2 years ago

If sin theta = 2/3 and tan theta <0 what is the value of cos theta?

Mrac [35]

Answer:

d) $\cos(\theta)=-\frac{\sqrt{5}}{3}$

Step-by-step explanation:

If $\sin(\theta)=\frac{2}{3}$ and $\tan(\theta)\:$ , then

$\theta$ is in quadrant 2.

Recall that;

$\sin^2(\theta)+\cos^2(\theta)=1$

We substitute the given sine ratio to obtain;

$(\frac{2}{3})^2+\cos^2(\theta)=1$

$\frac{4}{9}+\cos^2(\theta)=1$

$\cos^2(\theta)=1-\frac{4}{9}$

$\cos^2(\theta)=\frac{5}{9}$

$\cos(\theta)=\pm \sqrt{\frac{5}{9}}$

$\cos(\theta)=\pm \frac{\sqrt{5}}{3}$

We are in the second quadrant, therefore

$\cos(\theta)=-\frac{\sqrt{5}}{3}$

8 0

3 years ago