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love history [14]
3 years ago
12

Help me out 7th grade math

Mathematics
1 answer:
Dmitrij [34]3 years ago
5 0

Answer:

x=9

Step-by-step explanation:

5+18=23

50-23=27

27/3=9

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Which values of a and b make the following equation true? a = 11, b = 7 a = 11, b = 10 a = 28, b = 7 a = 28, b = 10
xz_007 [3.2K]

Answer:

The answer is

<h2>a = 11, b = 7</h2>

Step-by-step explanation:

( {5x}^{7}  {y}^{2} )( { - 4x}^{4}  {y}^{5} ) =  - 20 {x}^{a}  {y}^{b}

Multiply the terms on the left side of the equation

That's

- 20 {x}^{11}  {y}^{7}  =  - 20 {x}^{a}  {y}^{b}

Since the bases are the same we can equate the exponents

That's

{x}^{11}  =  {x}^{a}

a = 11

And

{y}^{7}  =  {y}^{b}

b = 11

Therefore

a = 11 and b = 7

Hope this helps you

7 0
3 years ago
Find the geometric mean of 5 and 7
dsp73

Answer:

\sqrt{35}

Step-by-step explanation:

A geometric mean is just \sqrt[n]{term one * term two * term three * etc.}, where n is the number of terms.

i.e. Geometric mean of 5, 6, 7: there are three values, so the mean is \sqrt[3]{5*6*7}

3 0
3 years ago
2 ÷ 2 × 2 ÷ 2 plz anwers for point
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It equals 1 thanks for the potion
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True or False
Rama09 [41]

Answer:

True

Step-by-step explanation:

Permutation is act of arranging members of a set while combination is selection of the items from collection.

The number of permutation of r object out of n is:

^nP_r=\frac {n!}{(n-r)!}

The number of combinations of r object out of n is:

^nC_r=\frac {n!}{(n-r)!\times r!}

Or,  

^nC_r=\frac {^nP_r}{r!}

So, number of the permutations of r objects out of n is greater than number of the combinations of r objects out of n.

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3 years ago
Hoiii!!! What is 1500 divided by 100?
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1500 divided by 100 is 15 .
7 0
2 years ago
Read 2 more answers
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