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2 years ago

12

Estimate area pls I need answer clear quality now

1 answer:

7nadin3 [17]2 years ago

8 0

Answer:

22

Step-by-step explanation:

(4 x 4) + (3 x 2) = 16 + 6 = 22

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After running 10 miles, David drank 2 bottles of water. His brother was thirstier and drank 2 1/2 times as much as David. What e

ad-work [718]

2 * 2.5 = 5, David’s brother drank 5 bottles of water. And the number of miles they ran is insignificant to the question.

5 0

3 years ago

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mr_godi [17]

Answer:

$V = \frac{2L\sqrt{3}}{3} \pi}$

$A = 4\pi + \sqrt{3L^{2} + 16}$

Step-by-step explanation:

Figure of cone is missing. See attachment

Given

Radius, R = 2m

Let L = KL=LM=KM

Required:

Volume, V and Surface Area, A

<u><em>Calculating Volume</em></u>

Volume is calculated using the following formula

$V = \frac{1}{3} \pi R^{2} H$

Where R is the radius of the cone and H is the height

First, we need to determine the height of the cone

The height is represented by length OL

It is given that KL=LM=KM in triangle KLM

This means that this triangle is an equilateral triangle

where OM = OK = $\frac{1}{2} KL$

OK = $\frac{1}{2}L$

Applying pythagoras theorem in triangle LOM,

|LM|² = |OL|² + |OM|²

By substitution

L² = H² + ( $\frac{1}{2}L$ )²

H² = L² - $\frac{1}{4}L$ ²

H² = L² (1 - $\frac{1}{4}$ )

H² = L² $\frac{3}{4}$

H² = $\frac{3L^{2} }{4}$

Take square root of bot sides

$H = \sqrt{\frac{3L^{2} }{4}}$

$H = \frac{L\sqrt{3}}{2}$

Recall that $V = \frac{1}{3} \pi R^{2} H$

$V = \frac{1}{3} \pi 2^{2} * \frac{L\sqrt{3}}{2}$

$V = \frac{1}{3} \pi * 4} * \frac{L\sqrt{3}}{2}$

$V = \frac{1}{3} \pi} * {2L\sqrt{3}}$

$V = \frac{2L\sqrt{3}}{3} \pi}$

in terms of $\pi$ an d L where L = KL = LM = KM

<u><em>Calculating Surface Area</em></u>

Surface Area is calculated using the following formula

$H = \frac{L\sqrt{3}}{4}$

$A=\pi r(r+\sqrt{h^{2} +r^{2} } )$

$A=\pi * 2(2+\sqrt{((\frac{L\sqrt{3}}{2})^{2} +2^{2} } )$ )

$A=\pi * 2(2+\sqrt{{\frac{3L^{2}}{4} } + 4 }$ )

$A=\pi * 2(2+\sqrt{{\frac{3L^{2}+16}{4} } })$

$A=2\pi(2+\sqrt{{\frac{3L^{2}+16}{4} } })$

$A = 2\pi (2 + \frac{\sqrt{3L^{2} + 16}}{\sqrt{4}} )$

$A = 2\pi (2 + \frac{\sqrt{3L^{2} + 16}}{2} )$

$A = 2\pi (2 + {\frac{1}{2} \sqrt{3L^{2} + 16})$

$A = 4\pi + \sqrt{3L^{2} + 16}$

6 0

3 years ago

Refer to Table 4-4. If these are the only four sellers in the market, then the market quantity supplied at a price of $4 is

NeTakaya

All things being equal; demand decreases, as price increases.

The quantity supplied when price is $4 is 28

From table 4.4 (see attachment).

When price = $4, we have the following supplies:

<em>Firm A = 6</em>
<em>Firm B = 6</em>
<em>Firm C = 8</em>
<em>Firm D = 10</em>

<em />

So, the total supply at $4 is:

$Total = 4 + 6 + 8 + 10$

$Total = 28$

Hence, the quantity supplied when price is $4 is 28

Read more about demand and supply at:

brainly.com/question/13353440

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2 years ago

In which number does the 5 represent a value 10 times the value represented by the 5 in 35,187

blagie [28]

It would be 50,000 since the 5 in the other number is in the thousands place so just multiply that by 10 in place value.

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2 years ago

Can someone give me a word problem for dividing these two fractions: 6 and 1/3

Alika [10]

Answer: 18

Step-by-step explanation:

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3 years ago

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