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olga2289 [7]
3 years ago
13

Help me with this please ​

Mathematics
1 answer:
Crazy boy [7]3 years ago
4 0

A) 10s=2m

B) It would take 20 seconds for 4 miles

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A city's population is increasing at a rate of 2% per year.
Mariana [72]

Based on the information the number of people that will there after 20 years is: d.)  2.97 million.

Using this formula

P(t) = Population ×(1+ rate)^t

Where:

Population=2 million

rate=2%

time=20 years

Let plug in the formula

P(t) = 2×(1+.02)^20

P(t) = 2×(1.02)^20

P(t) = 2×1.485947

P(t) = 2.97 million

Inconclusion the number of people that will there after 20 years is: d.)  2.97 million.

Learn more about population here:brainly.com/question/25630111

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2 years ago
Please help it says: what is the volume of this figure? Show work and label!!
Mashcka [7]

Answer:

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Step-by-step explanation:

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3 years ago
Which equation is equivalent to
konstantin123 [22]
It is the last equation. You square both sides. 
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3 years ago
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In the △PQR, PQ = 39 in, PR = 17 in, and the altitude PN = 15 in. Find QR.
Licemer1 [7]

Answer:

So, this triangle PQR can be broken into two right triangles, PNQ and PNR, with legs PQ = 39, PN =15, and QN = ? and PR = 17, PN = 15, and NR =? respectively.


Let's solve for what is easier first:

Since we know that 5-15-17 is a Pythagorean triplet, we can infer that NR is 5....like I said earlier, it is a right triangle, so this guess holds true.


Here comes the interesting part:

Now, we have one part of QR, which is QN.

The other part can be solved by using the Pythagorean theorem.

It is (39^2-15^2)^(1/2)..which gives you 36, the square root of 1296, which happens to be the difference between the squares of 15 and 39.

SO, QR = QN + NR

5+36 = 41

QR = 41.

Hope this helps!

3 0
3 years ago
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Please help will give brainliest please give me the right answer
Naily [24]

Answer:

b

Step-by-step explanation: its b

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