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stealth61 [152]
3 years ago
10

PLEEEAAAASE HELLP!!!Tina is making a cylindrical sandbox that has a radius of 2 feet. She bought 18.84 cubic feet of sand for th

e sandbox. Which height does she need to make the sandbox to fit all the sand?0.5 ft, 0.75 ft, 1 ft, 1.5 ft.
Mathematics
2 answers:
madam [21]3 years ago
8 0

Answer:

Step-by-step explanation:

The answer is 1.5 ft i just took the test

baherus [9]3 years ago
7 0

Answer:

The correct option is 4.

Step-by-step explanation:

The volume of a cylinder is

V=\pi r^2h

where, r is radius of the base and h is height of the cylinder.

It is given that the radius of the cylindrical sandbox is 2 ft and the volume of cylindrical sandbox is 18.84.

18.84=(3.14)\times (2)^2\times h        [\because \pi=3.14]

18.84=(3.14)\times 4\times h

18.84=12.56\times h

\frac{18.84}{12.56}=h

1.5=h

The height of the sandbox is 1.5 ft. Therefore the correct option is 4.

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Monica [59]

Answer:

Firstly, notice the relationship the two triangles have. They have conjoining ends that form vertical angles (looks like a middle x). Vertical angles are equivalent in measure of degrees.

Secondly, notice that the triangle on the right side is a right triangle. One of its angle's measurements are also given; 40 degrees. If you know that the sum of a triangle's angles equal 180 degrees, then simply subtract the known angles measurements from 180.

180-(90+40)=  180-130=50.

Therefore, the vertical angles measurement is equivalent to 50 degrees.

Apply the principle of the sum of all angles in a triangle equivalent to 180 degrees to the left triangle, and you will be able to find the measurement of the "?" angle.

180-(50+25)= 180-75=105

SO HERE IS YOUR ANSWER= 105 degrees is the value of the angle marked with a "?"

I hope you are having a great day too;)!

8 0
3 years ago
Read 2 more answers
PLEASE HELPPP ME ITS DUE TODAY
mel-nik [20]

Answer:

Randall: 44, Amy: 35

Step-by-step explanation:

Four years ago, their age added up to 71. Since four years have passed and they've each grown four years older since then, their ages added up together is 79. Here is the equation for Amy: x + (x + 9) = 79. We can simplify to get 35. Now we add 9 to 35 to get Randall's age. So, Amy's age is 35 and Randall's age is 44, and 35 + 44 = 79.

3 0
3 years ago
99g in the ratio 5:2:4
uranmaximum [27]

Answer:

45:18:36

Step-by-step explanation:

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substitute x back into 5x:2x:4x

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45:18:36

4 0
3 years ago
Find an equivalent expression to 3(4m-2)-2(m+5)
Anuta_ua [19.1K]
3(4m-2)-2(m+5)

Distribute. 

12m-6-2m-10

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I hope this helps!
~kaikers
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3 years ago
Which equation can be used to find the area of the rectangle? A. A=9+4 B. A=1/2 (9)(4) C. A=9+9+4+4 D. A=(9)(4)
valentina_108 [34]

Answer:

D. A=(9)(4)

Step-by-step explanation:

area= length x width = 9x4

6 0
3 years ago
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