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ValentinkaMS [17]
3 years ago
10

Somebody help me please

Mathematics
1 answer:
andrew-mc [135]3 years ago
7 0
The justification for step 3 is incorrect. It should be x = 10/8.

Hope this helps =)
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Can someone help me please !
elena55 [62]
The reference angle is
pi/3.

At 180 it would be 9pi/3 so going past that is 10pi/3.

7 0
3 years ago
A collar of Styrofoam is made to insulate a pipe. Find it's volume. That large R is to the outer rim. The smaller r us to the ed
anastassius [24]

Answer:

the volume of the pipe is 649.98 cubic inches.

Step-by-step explanation:

We have been given that a collar of Styrofoam is made to insulate a pipe. We are asked to find the volume of the given pipe.

We will use volume of hollow cylinder formula to solve our given problem.

\text{Volume of hollow cylinder}=\pi R^2h-\pi r^2h

where,

R = Radius of external cylinder,

r = Radius of internal cylinder.

h = Height of cylinder.

substituting our given values in above formula, we will get:

\text{Volume of hollow cylinder}=\pi (5\text{ in})^2(\text{23 in})-\pi (4\text{ in})^2(\text{23 in})\text{Volume of hollow cylinder}=\text{23 in}\cdot 3.14 ((5\text{ in})^2-(4\text{ in})^2)\text{Volume of hollow cylinder}=\text{23 in}\cdot 3.14 (25\text{ in}^2-16\text{ in}^2)\text{Volume of hollow cylinder}=\text{23 in}\cdot 3.14 (9\text{ in}^2)\text{Volume of hollow cylinder}=649.98\text{ in}^3

Therefore, the volume of the pipe is 649.98 cubic inches.

8 0
3 years ago
HELP PLZ ASAP HELP
Basile [38]

Answer:

4.5 Cubic Feet

Step-by-step explanation:

1. You want to find the volume of the box. (Length x width x height)

2.5 x 2 x 1.5 = 7.5

2. The present has a volume of 3 cubic feet, so you would subtract that from the volume of the box.

7.5 - 3 = 4.5

3. The volume of the empty space in the box is 4.5 cubic feet.

Hope this helped! :)

8 0
3 years ago
There is a bowling ball with a diameter of 216 mm and a baseball with a diameter of 74 mm. Find how many times greater the volum
zmey [24]
Bowling ball radius = 108 mm
Sphere Volume   = <span>  4/3 • <span>π <span>• r³
bowling ball volume = 4/3 * PI * 108^3
</span></span></span><span>bowling ball volume = 5.2767e+6
</span> <span><span>bowling ball volume = 5,276,669 cubic mm

baseball radius = 37 mm
baseball volume = </span>4/3 * PI * 37^3
</span><span><span>baseball volume = 4/3 * PI * 37^3
</span> </span> <span>baseball volume = 212,174 </span><span>cubic mm

bowling ball greater than baseball by a factor of:
</span>
5,276,669 / <span>212,174 = </span> <span> <span> <span> 24.8694450477 </span> </span> </span>
answer is D




6 0
3 years ago
In​ March, a family starts saving for a vacation they are planning for the end of August. The family expects the vacation to cos
Makovka662 [10]
Deposited money:

March: 120
April: 120+(120×20)/100=120+24=144
May: 144+(144×20)/100=144+18,8=162,8
June: 162,8+(162.8×20)/100=162,8+32.56=195.36
July: 195.36+(195.36×20)/100=195.36+23.87=219.23
August: 219.23+(219.23×20)/100=219.23+43.85=263.08

120+144+162.8+195.36+219.23+263.08=1105.19
So the answer is no.
7 0
3 years ago
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