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Andrew [12]
2 years ago
6

Please answer this question

Mathematics
1 answer:
elena-14-01-66 [18.8K]2 years ago
8 0
The area of the base (six triangles with a base 15m and a height 7.5√3m):

A_B=6\cdot\dfrac{1}{2}\cdot15\cdot7.5\sqrt3\approx585\ m^2

The area of side walls (six triangles with a base 15m and a height 12m)

A_W=6\cdot\dfrac{1}{2}\cdot15\cdot12=540\ m^2

The surface area:

A_B+A_W=585+540=1,125\ m^2



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Is this right? I’m unsure if I’m doing this correctly. Thanks
gogolik [260]
The answer is 24 as it's the smallest number given that is divisible by both 6 and 8.
4 0
3 years ago
Read 2 more answers
This is my question. If Andy drove 840 miles in 12 hours. How far could he drive in hours? Help me?
stellarik [79]

Answer:

840mi. - 12 hrs

  x       -  3 hrs

This is a simple cross multiplying problem.

840 _ 12

 x   --  3    ⇒12x=3(840) ⇒ 4x=280 ⇒ x=70 miles

:D

Step-by-step explanation:

7 0
3 years ago
Please help me out............................
Alina [70]

Answer:

<h2>b = 15°</h2>

Step-by-step explanation:

If Pq = RQ then ΔPQR is the isosceles triangle. The angles QPR and PRQ have the same measures.

We know: The sum of the measures of the angeles in the triangle is equal 180°. Therefore we have the equation:

m∠QPR + m∠PRQ + m∠RQP = 180°

We have

m∠QPR = m∠PRQ and m∠RQP = 60°

Therefore

2(m∠QPR) + 60° = 180°       <em>subtract 60° from both sides</em>

2(m∠QPR) = 120°           <em>divide both sides by 2</em>

m∠QPR = 60° and m∠PRQ = 60°

Therefore ΔPRQ is equaliteral.

ΔPSR is isosceles. Therefore ∠SPR and ∠PRS are congruent. Therefore

m∠SPR = m∠PRS

In ΔAPS we have:

m∠SPR + m∠PRS + m∠RSP = 180°

2(m∠SPR) + 90° = 180°            <em>subtract 90° from both sides</em>

2(m∠SPR) = 90°             <em>divide both sides by 2</em>

m∠SPR = 45° and m∠PRS = 45°

m∠PRQ = m∠PRS + b

Susbtitute:

60° = 45° + b           <em>subtract 45° from both sides</em>

15° = b

3 0
3 years ago
The answer for your question is a 1;3 because 16/48=1/3 or 1:3.
tiny-mole [99]
1:3 = 16/48 and 1/3.

Have a nice day! :D
4 0
3 years ago
What is a mixed number for 5/2
m_a_m_a [10]

Answer: 2 1/2

Step-by-step explanation:  Divide using long division. The whole number portion will be the number of times the denominator of the original fraction divides evenly into the numerator of the original fraction, and the fraction portion of the mixed number will be the remainder of the original fraction division over the denominator of the original fraction. Hope this helps!! PLZ mark me!!!

8 0
2 years ago
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