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Phoenix [80]
3 years ago
11

XD PLZ HELP ME I DONT UNDER STAND PLZ IM BEGGING

Mathematics
2 answers:
Virty [35]3 years ago
6 0

Answer:

40 and 202.5 m³

Step-by-step explanation:

(7)

Since the figures are similar then the ratios of corresponding sides are equal, that is

\frac{PQ}{16} = \frac{30}{12} ( cross- multiply )

12 PQ = 480 ( divide both sides by 12 )

PQ = 40 in

-------------------------------------------------------------------

The volume (V) of a pyramid is calculated as

V = \frac{1}{3} Ah ( A is the area of the base and h the height ) , then

V = \frac{1}{3} × 9² × 7.5

   = \frac{1}{3} × 81 × 7.5

   = 27 × 7.5

   = 202.5 m³

Natali [406]3 years ago
5 0

Answer:

the volume for the second page is 607.5

Step-by-step explanation:

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The radius of a circular box is 21 centimeters. What is the circumference of the box? A 66cm B 132cm C 176cm D 1386cm
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The answer would be 132 because the formula for find circumference while using radius is 2(3.14)r .

C= 2(3.13)21

C= 6.28 • 21 = 131.88

131.88 rounded is 132

8 0
3 years ago
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I would appreciate brainliest if This was helpful and correct! :)
3 0
3 years ago
The equation shown below involves a perfect square trinomial. 4x2 + 20x + 25 = 7 Which of the following is a step in solving thi
fomenos
4 x^2 + 20 x + 25 = 7
Divide both sides by 4:
x^2 + 5 x + 25/4 = 7/4
Write the left-hand side as a square:
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Take the square root of both sides:
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3 0
4 years ago
Help please need this answer
ohaa [14]

Answer:

1

Step-by-step explanation:

Because there are no squares

5 0
4 years ago
Read 2 more answers
Pls help !! im awful at trig. pls and ty !​
azamat
We just need to know the sin 40 value
3 0
3 years ago
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