Question

MAth

Answer 1

A circle has a radius of 13 centimeters. If one-half of the circle is cut away, what is the area of the remaining portion?
(Use 3.14 for .)

A. 20.41 cm2
B. 1,061.32 cm2
C. 265.33 cm2
D . 530.66 cm2

Answer 2

C

Answer 3

13.

At Bud's company, bowling balls are composed of a sphere with a diameter of 8 inches.

If a store receives a shipment of 24 bowling balls, what is the total volume of the balls?






A. 1,607.68 cubic inches
B. 20,192.46 cubic inches
C. 267.95 cubic inches
D. 6,430.72 cubic inches

Answer 4

wait never mind!!!!

Answer 5

@Noemi95 are you sure ?

Answer 6

okay

Answer 7

basically all you do is find the area of the hole circle which is 530.66 then divide it by 2

Answer 8

no wait yeah I am right

Answer 9

because all you need is one radius to find area

Answer 10

19.Hal's parents recently built a rectangular swimming pool that measures 7 meters long, 7 meters wide, and 1 meter deep. If the pool is 77% full, how much more water is needed to finish filling the swimming pool?

A. 37.73 cubic meters
B. 3.08 cubic meters
C. 11.27 cubic meters
D.74.76 cubic meters

Answer 11

the equation for finding the are area of a circle is
A=(pi) * r^2
So we plug in the values,
A= 3.14 * 13^2
=530.66 (whole) so we now divide by 2, and we get 265.33
(For the first one)

Answer 12

Thanks . What about the next one number 13 ?

P.s I promise to give you a medal lol

Answer 13

haha okay let me see

Answer 14

Volume a sphere = 4/3 pi r * r * r
then times 24

Answer 15

I think it's D

Answer 16

The equation IS the one RadEn told you, so we plug in values and we get
V=(4/3) * 3.14 * 4^3
we solve that and we get, 267.94667
then multiply times 24 and the answer is 6,430.72

Answer 17

agreed ^

Answer 18

Thank you .What about 19 ??

Answer 19

The formula is V= length*width* height
So let's plug in values, V=7*7*1=49 is the TOTAL volume,
but we only want to know 77% of that

Answer 20

100% - 77% = 23%
that's the rest to get full

so, u need 23/100 of full volume
what's 23/100 * 7 * 7 * 1

assumed that rectangular swimming pool like a cuboid

Answer 21

so now we divide 49 by 100, and we get 0.49 and we multiply by 77= 37.73

Answer 22

I agree with Rad, so @RadEn explanation is more proper, go with that one!(:

Answer 23

Thank yall both

Answer 24

B) 61

Answer 25

At his trucking company, Paul received an order to ship 251 cubic feet of oil in cylindrical steel barrels. If each barrel has a radius of 1.5 feet and is 5 feet tall, how many steel barrels will Paul need?
A. 9
B. 6
C. 8
D. 7

Answer 26

Equation : V=l*h*w
plug in values, V= 5*5*5 (same measures because it's a cube)
we get V=125
and they tell us they still have 64 cubit feet left, so 125-64=61

Answer 27

thank you.

Answer 28

Volume a cube = s * s * s
here given s = 5

so, volume of thoy box = 5 * 5 * 5 = 125
known the rest space of box = 64

so, the space block filled 125-64=127

Answer 29

oppss mis-co-vaste, haha :)
125-64=61

Answer 30

thank you . can you tell me number 28 ?

Answer 31

where is it ?

Answer 32

in the word document

Answer 33

ah still in the same file --"

Answer 34

yes .

Answer 35

volume = length * width * height
volume is given = 300 in^3 , length = 15, width = 4


length * width * height = 300
15 * 4 * H = 300
solve for H

Answer 36

15 * 4 * H = 300
60H = 300

divide by 60 from both sides:
60H/60 = 300/60
H = 5

Answer 37

Thank you so much . I still need help but so that I can give you a medal im going to close this on and open another box .