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nlexa [21]
2 years ago
8

What is the value of the expression?

Mathematics
1 answer:
jeyben [28]2 years ago
5 0
2.54-1.66
0.88
the answer is 0.88
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If there are 22 successes in a sample with a size of 40, what is the sample
patriot [66]

Answer:

A

Step-by-step explanation:

22 successes out of a group of 40 means 22/40 were good. Now, simplify 22/40. Both can be divided by 2.

22/2 = 11

40/2 = 20

Now you have 11/20. Put this in decimal form and you have 0.55

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3 years ago
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7 POINTS!!! EASY!!BUT I AM SMALL. A skateboarder traveled 3 5 of a mile in 1 20 of an hour. What was the skateboarder’s speed in
Alex17521 [72]
Speed = distance ÷ time so it's probably
35÷120=0.291 or 7/24 miles per hour
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3 years ago
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Which of these numbers is irrational? A) −0.125 B) −50 C) π D) 7 10
Marrrta [24]
Your answer would be C
7 0
3 years ago
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Could someone help me, please?
k0ka [10]

We can rewrite the expression under the radical as

\dfrac{81}{16}a^8b^{12}c^{16}=\left(\dfrac32a^2b^3c^4\right)^4

then taking the fourth root, we get

\sqrt[4]{\left(\dfrac32a^2b^3c^4\right)^4}=\left|\dfrac32a^2b^3c^4\right|

Why the absolute value? It's for the same reason that

\sqrt{x^2}=|x|

since both (-x)^2 and x^2 return the same number x^2, and |x| captures both possibilities. From here, we have

\left|\dfrac32a^2b^3c^4\right|=\left|\dfrac32\right|\left|a^2\right|\left|b^3\right|\left|c^4\right|

The absolute values disappear on all but the b term because all of \dfrac32, a^2 and c^4 are positive, while b^3 could potentially be negative. So we end up with

\dfrac32a^2\left|b^3\right|c^4=\dfrac32a^2|b|^3c^4

3 0
3 years ago
Select the correct answer.
Nat2105 [25]
The answer is C.2 that is the answer
4 0
2 years ago
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