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sergiy2304 [10]
3 years ago
9

Simplify: 49 - 4 x 49 ÷ 7 21 34 36

Mathematics
2 answers:
Aleksandr [31]3 years ago
7 0

Answer:

pemdas

Step-by-step explanation:

4 times 49 =196

196 divided by 7= 28

49 minus 28=21

THE ANSWER IS 21

enot [183]3 years ago
5 0

Answer:

21

Step-by-step explanation:

49 - 4 x 49 / 7 =

49 - 196 / 7 =

49 - 28 =

21

<em>Hope that helps!</em>

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Which set of points lies on the the graph of the function.
meriva

Answer:

(0,0), (-1, 1), and (1,-1)

Step-by-step explanation:

If you were to plot all the points they would all end up being on the green line

I hope this helped?

8 0
3 years ago
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Jenny is x years old. Thomas is 3 times as old as her. Jenny is 5 years older than Alexis.
4vir4ik [10]

Answer:

C IS 36 CUZ 12X3=36

Step-by-step explanation:

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6 0
3 years ago
Determine whether the integral is convergent or divergent. [infinity] 7 e−1/x x2 dx convergent divergent Changed: Your submitted
inessss [21]

I suppose the integral could be

\displaystyle\int_7^\infty\frac{e^{-1/x}}{x^2}\,\mathrm dx

In that case, since -\frac1x\to0 as x\to\infty, we know e^{-1/x}\to1. We also have \left(e^{-1/x}\right)'=\frac{e^{-1/x}}{x^2}>0, so the integral is approach +1 from below. This tells us that, by comparison,

\displaystyle\frac{e^{-1/x}}{x^2}\le\frac1{x^2}\implies\int_7^\infty\frac{e^{-1/x}}{x^2}\,\mathrm dx\le\int_7^\infty\frac{\mathrm dx}{x^2}

and the latter integral is convergent, so this integral must converge.

To find its value, let u=-\frac1x, so that \mathrm du=\frac{\mathrm dx}{x^2}. Then the integral is equal to

\displaystyle\int_{-1/7}^0e^u\,\mathrm du=e^0-e^{-1/7}=1-\frac1{\sqrt[7]{e}}

4 0
3 years ago
What two numbers add up to 45 and multiply and get 121
umka2103 [35]
Let the two numbers be x and y.

We have x+y=45
⇒ y= 45-x.

The two numbers multiply and get 121, so we have another equation:
x*y = 121 (1)

Plug y= 45-x in (1), we have:
x* (45-x)=121
⇒ 45x - x^2 = 121 (distributive property)
⇒ x^2 - 45x = -121 (multiply -1 on both sides)
⇒ x^2- 45x + 121= 0
⇒ x= 42.128 or x= 2.872

y= 45- 42.128= 2.872
or y= 45- 2.872= 42.128.

Because it does not matter what number, x or y, is larger, the two numbers are 2.872 and 42.128.

Hope this helps~


 
4 0
3 years ago
Explain how you can use estimation to place the decimal point in the quotient 42.66÷22
Kay [80]
42.66 / 22 = 1.939, So if you are estimating than anything that is 5 or over is estimated to the top, and anything 4 or less is estimated to the bottom. So in this case 1.939 is estimated to 1.94
5 0
3 years ago
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