2 years ago

Please help me ,,.......

1 answer:

8 0

Out of 100 students, only 12 students picked the violin

thus the probability of a student picking the violin would be
12/100 = 6/50 =3/25 = 12%

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What is the exact volume of a cylinder whose radius is 21 centimeters and whose height is 30 centimeters?

olga nikolaevna [1]

Volume of cylinder
v = πr²
v = 22/7 x 21²
v = 1385.441 cm³

4 0

2 years ago

Figure a is dilated by a scale factor of 1/2 to form figure b. What is the length of x?

PIT_PIT [208]

Answer:

The correct option is 3. The value of x is 8 inches.

Step-by-step explanation:

It is given that Figure A is dilated by a scale factor of 1/2 to form Figure B. It means both figure are similar and corresponding sides of similar figures are proportional.

$\text{scale factor}=\frac{\text{Side of image}}{\text{Side of preimage}}$

$\frac{1}{2}=\frac{x}{16}$

Multiply both sides by 16.

$\frac{16}{2}=x$

$8=x$

Since scale factor is 1/2, so we can directly say that the side length of image is half of the corresponding side of preimage.

The length of x is 8 inches. Therefore the correct option is 3.

3 0

3 years ago

Read 2 more answers

Find the measure of the are or angle indicated. Assume that lines which appear tanget are tangents.

Brilliant_brown [7]

9514 1404 393

Answer:

85°
60°

Step-by-step explanation:

1. Angle JKL is half the measure of the intercepted arc JK.

(1/2)JK = 1/2(360° -190°) = (1/2)(170°) = 85°

angle JKL is 85°

2. The angle between tangents is the supplement of the intercepted arc.

angle JKL = 180° -(360° -240°)

angle JKL = 60°

8 0

2 years ago

A rectangle is 7 meters. The perimeter is 24. What is the width?

lana [24]

P=2(L+W)
if length=7
and P=24
24=2(7+W)
divide both sdes by 2
12=7+W
minus 7both sides
5=W
width=5meters

7 0

2 years ago

Some values of the linear function 'f' are shown in the table what is the value of 3?

Monica [59]

6 | 16 is the correct answer I believe

5 0

2 years ago