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Viktor [21]
3 years ago
9

Use the properties of exponents to simplify the following expressions

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

Answer:

Below in bold

Step-.by-step explanation:

1.  5 ^(3+4) = 5^7.

2.  2^(8*2) = 2^16.

3.   1.

4.   n^11

5.  8^(7-2) = 8^5.

6.  1 / 3^4.

7.  7.

8. 8.

9.  5^4.

10. 81.

hodyreva [135]3 years ago
4 0
1) 5³ • 5⁴
= 5³+⁴
= 5⁷

2) (2⁸)²

= 2⁸ײ
= 2¹⁶

3) anything raised to a power of zero is always 1

4) n² • n⁴ • n⁵

= n²+⁴+⁵
= n¹¹


5) 8⁷/8²

= 8⁷-² = 8⁵

6)
3-⁴ =
1/3⁴


7) 7⁰ = 1


8)
3¹⁶ = (3⁸) (3*)

16-8 = 8

9) 5×5×5×5 = 5⁴

10) 3⁴ = 3×3×3×3 = 9×9 = 81
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Five years from now, the sum of the ages of a women and her daughter will be 40 years. The difference in their present age is 24
Tomtit [17]

Answer:

Daughter age = 3 years

Step-by-step explanation:

Let x be the age of the women and y be the age of the daughter.

Given:

After five year the sum of the women and daughter age = 40

(x+5)+(y+5)=40

At present the sum of the women and daughter age

x+5+y+5=40

x+y+10=40

x+y=40-10

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So the sum of the present age is x+y=30

The difference in their present age is 24 years.

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x=24+y

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y=3\ years

Therefore, the daughter age is 3 years.

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3 years ago
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irina [24]
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