Find the value of z.
A. 6
B. 3
C. 4
D. 2

Answers

Answer 1

Answer:

Length of chord z is 6.

What is chord length?

It is defined as the line segment joining any two points on the circumference of the circle, not passing through its center. Therefore, the diameter is the longest chord of a given circle, as it passes through the center of the circle.

From the figure we can write,

$z+2=2+4+2$

$z+2=8$

$z=8-2=6$

Length of chord z is 6.

Find out more information about chord length here

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Answer 2

Answer:

The two chords on top of each other are the same length as the single vertical chord.

The vertical chord is 2 + 4 +2 = 8 units long.

Z = 8-2 = 6

The answer is A.

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Thomas has a box with four black color bottles and eight gray color bottles. Two bottles are drawn without replacement from the box. What is the probability that both of the bottles are gray

Answers

The probability that the bottles pulled out are gray is a 8:4 chance. Reduced that would be 1:2. so 1/2 chance that both are gray

Ariel travels 400 miles in 8 hours. What is her rate of change or rate?A) 40 miles per hour
B) 50 miles per hour
C) 55 miles per hour
D) 60 miles per hour

Answers

The rate of change is 50 just divide 400/8

Explain how you find m∠3 if m∠5 = 130° and m∠4 = 70°. *

Answers

Answer:

The required measure of angle 3 is 60°.

Step-by-step explanation:

We are given to find the measure of angle 3 from the figure if

m∠5 = 130° and m∠4 = 70°.

Let the measure of angle 3 be x°.

From the figure, we note that

angle 5 is an exterior angle and angles 3 and 4 are two remote interior angles of the triangle.

We know that

the measure of an exterior angle to a triangle is equal to the sum of the measures of two remote interior angles.

So, we get

Thus, the required measure of angle 3 is 60°.

Mrs. Lia has 16 pounds of modeling clay. She divides the clay into 1
2
- pound blocks.

If Mrs. Lia sets aside 5 of the blocks and gives the rest to the students in her art class, how many
1
2
- pound blocks of clay does Mrs. Lia give to her class?

The number of
1
2
- pound blocks of clay Mrs. Lia gives to her class is .

Answers

First, I would like to give you a tip on writing fractions on here: When writing fractions on brainly, you can set them up like so: 1/2
People on here will now what you mean and it is easier to write.

Work:

16 into a fraction would be 16 × 2 which is 32. Then place it over 2, so it is 32/2

take away 5/2
32/2 - 5/2 = 27/2

Answer:

The number of 1/2 pound blocks of clay Mrs. Lia gives to her class is 27.

A sphere and a right cylinder have the same radius and volume. The cylinder has a height of 6 centimeters. What is the radius?

Answers

You are going to solve this in such a quick, slick way
that you will blink and not believe it. Fasten your seat belt.

Here are the tools you'll need:

-- Volume of a cylinder = (pi) (radius)² (height)

-- Volume of a sphere = (4/3) (pi) (radius)³

Now ... the question says that your cylinder and your sphere
have the same volume. Fine ! So you can immediately write
an equation saying that their volumes are equal.

   (pi) (radius)² (height) = (4/3) (pi) (radius)³

Divide each side by pi:    (radius)² (height) = (4/3)    (radius)³

Divide each side by (radius)²    (height) = (4/3)    (radius)

Fill in the given height: (6 cm) = (4/3) (radius)

Multiply each side by 3/4 : (6 cm) x (3/4) =   radius

I'm pretty sure that you can take over now and find the radius.

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