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REY [17]
3 years ago
13

What number a is 70% of 70? 70 100

Mathematics
2 answers:
astraxan [27]3 years ago
8 0

Answer:

49

Step-by-step explanation:

49 is the answer!!!!

crimeas [40]3 years ago
7 0

Answer:

49

Step-by-step explanation:

hope this helps!

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<img src="https://tex.z-dn.net/?f=%20%7B2%7D%5E%7Bm%7D%20%20%3D%20n%20" id="TexFormula1" title=" {2}^{m} = n " alt=" {2}^{m} =
sveta [45]

Answer:

\displaystyle n^3-\frac{1}{n^{2}}

Step-by-step explanation:

<u>Exponents Properties</u>

We need to recall the following properties of exponents:

(a^x)^y=(a^y)^x=a^{xy}

\displaystyle a^{-x}=\frac{1}{a^x}

We are given the expression:

2^m=n

We need to express the following expression in terms of n.

8^m-4^{-m}

It's necessary to modify the expression to use the given equivalence.

Recall 8=2^3 \text{ and }4 = 2^2. Thus:

(2^3)^m-(2^2)^{-m}

Applying the property:

(2^m)^3-(2^m)^{-2}

Substituting the given expression:

n^3-n^{-2}

Or, equivalently:

\mathbf{\displaystyle 8^m-4^{-m}= n^3-\frac{1}{n^{2}}}

5 0
2 years ago
A sphere and a cylinder have the same radius and height. The volume of the cylinder is 18 cm.
Oksi-84 [34.3K]

Answer:

38cm3

Step-by-step explanation:

8 0
3 years ago
How old are you if you graduated high school in 2009
IRISSAK [1]
Assuming the graduate was 18 when they graduated they would be 26. 

2017- 2009 = 8

18 + 8 = 26
6 0
3 years ago
Read 2 more answers
Which number is the greatest integer and the smallest integer out of these numbers? 34, -78, -.999, 321, -88.788, 100
alexandr402 [8]

Answer:

greatest: 321, smallest, -88.788

4 0
3 years ago
Read 2 more answers
-5v^2+31v-6 factor the polynomial
jeka57 [31]

The first thing he has to do is take that "minus" sign through the parentheses containing the second polynomial. Some students find it helpful to put a " 1 " in front of the parentheses, to help them keep track of the minus sign. Here's what the subtraction looks like, when working horizontally.

6 0
3 years ago
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