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2 years ago

What ratio is equivalent to 21/35

1 answer:

4 0

A 2:5 ratio. Because 21 divided by 7 equals 3 and 35 divided by 7 equals 5. And I did it by 7 because thats common factor

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Q # 28 please solve the equation

o-na [289]

The height of the pole = 129.3 ft

sin 36° = height of pole/ hypotenuse
hypotenuse = 220 ft

the height of the pole = 220 sin 36° = 129.3 ≈ 129 ft

4 0

3 years ago

Read 2 more answers

A student takes an exam containing 18 true or false questions. If the student guesses, what is the probability that he will get

V125BC [204]

Use this formula.
and solution is:［（18！）/（6！×（18-6）！）］×（1/2）^6×（1-1/2）^（18-6）≈0.0781604
7.8%

3 0

3 years ago

A hemispherical tank is filled with water and has a diameter of 14 feet. If water

tigry1 [53]

Answer:

$44,826.72\ \text{pounds}$

Step-by-step explanation:

Given that,

The diameter of a hemispherical tank= 14 feet

Radius, r = 7 feet

water

Water weighs 62.4 pounds per cubic foot.

We need to find the total weight of the water in a full tank to the nearest pound.

The volume of the hemisphere is given by :

$V=\dfrac{2}{3}\pi r^3\\\\V=\dfrac{2}{3}\pi \times (7)^3\\\\V=718.377\ \text{feet}^3$

If water weighs 62.4 pounds per cubic foot, it means

$V=718.377\times 62.4\\\\V=44,826.72\ \text{pounds}$

So, the total weight of the water is $44,826.72\ \text{pounds}$ .

3 0

2 years ago

Can soemone help meee ):

bogdanovich [222]

I don't know the answer but my tip would be to split the shape the way I did it, find the lengths of each side, and then find the area for each individual shape.

Then add all the areas together.

6 0

2 years ago

Which property of multiplication is shown?<br> 9. (r:s) = (q.r).s

Lunna [17]

Answer:

I think it is associative! Not sure though bc of the q!

Step-by-step explanation:

3 0

3 years ago