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natulia [17]
3 years ago
10

If 2 inches on a map represents 100 miles, how much does 3.5 inches

Mathematics
1 answer:
Sidana [21]3 years ago
4 0

Answer:

175 miles

Step-by-step explanation:

3.5 has 2 miles in it so it has 100 then it has another 1 to make It 3 and half of 2 is ahh it's hard to explain but there's the anwser

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Math question #1 please show steps
-Dominant- [34]

Answer:

C

Step-by-step explanation:

An approximation of an integral is given by:

\displaystyle \int_a^bf(x)\, dx\approx \sum_{k=1}^nf(x_k)\Delta x\text{ where } \Delta x=\frac{b-a}{n}

First, find Δx. Our a = 2 and b = 8:

\displaystyle \Delta x=\frac{8-2}{n}=\frac{6}{n}

The left endpoint is modeled with:

x_k=a+\Delta x(k-1)

And the right endpoint is modeled with:

x_k=a+\Delta xk

Since we are using a Left Riemann Sum, we will use the first equation.

Our function is:

f(x)=\cos(x^2)

Therefore:

f(x_k)=\cos((a+\Delta x(k-1))^2)

By substitution:

\displaystyle f(x_k)=\cos((2+\frac{6}{n}(k-1))^2)

Putting it all together:

\displaystyle \int_2^8\cos(x^2)\, dx\approx \sum_{k=1}^{n}\Big(\cos((2+\frac{6}{n}(k-1))^2)\Big)\frac{6}{n}

Thus, our answer is C.

*Note: Not sure why they placed the exponent outside the cosine. Perhaps it was a typo. But C will most likely be the correct answer regardless.

5 0
3 years ago
Alessia fills her baby pool with 75 liters of water. How many 1-gallon containers will it take for her to fill the pool with the
8090 [49]
Answer: It will take 19.5 one-gallon containers

Explanation: We know that 1 liter is 0.26 gallons

All we need to do is to make a ratio

1 75
---- -----
0.26 ?

We need to do what we did on the top (times 75 to get 75) on the bottom (times 75 to get 19.5)

Hope this helps!
5 0
3 years ago
Help plz <br> With steps will give brainliest !!!!
Usimov [2.4K]

Answer:

32 minutes.

Step-by-step explanation:

Hello there!

Add the time of the movie to the time they arrived:

10:15+48=11:03

Then subtract this number from 11:35

11:35-11:03=32 minutes

:)

7 0
3 years ago
Paul can type 60 words per minute and Jennifer can type 80 words per minute. How does Paul’s typing speed compare to Jennifer’s
yan [13]
I'm not certain how exactly this question is supposed to be answered. 

If it wants a ratio, Paul and Jennifer's speeds would be in a ratio of 3:4.

It also could be Paul types 20 words per minute slower than Jennifer.

It could be Paul types 33% slower than Jennifer.

Another answer could be Paul's typing speed is 3/4ths of Jennifer's typing speed.

Feel free to ask any further questions.
4 0
2 years ago
Read 2 more answers
SIMPLIFY
faust18 [17]
Are you sure the options are what u have written above? because sqrt of 5x=sqrt of 5x,
sqrt of 20x=2•sqrt of 5x,and sqrt of 80x= 4•sqrt of 5x..
4 0
3 years ago
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