3 years ago

HELP 13 POINTS!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

ahrayia [7]3 years ago

5 0

Answer:

$4^{-8} \\4^{-2}\\4^{8}\\4^2$

Step-by-step explanation:

For the first few exponents multiply and the rest they add because like terms.

The trick is that when you raise a power to a power you multiply. Otherwise you add if the base value is the same.

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Twenty-seven is the product of three and a number

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It’s the product of three and nine.

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4 years ago

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10 divided by 2 1/4 = 10/1 divided by what = 10/1 times what is = what

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Answer:

1st and 2nd Equation; what = 2.25, 3rd Equation; what = 4.44444

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9.The perimeter of a rectangle whose length is 7.5cm and breadth 3.75cmRequired to answer. Single choice.

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Answer:

22.5 cm

Step-by-step explanation:

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4 years ago

1/a^2-3a+2 + 1/a^2-5a+6 + 2/a^2-8a+15

Inessa [10]

Answer:

$\frac{4+16a^3+23a^3}{a^2}$

Step-by-step explanation:

Given

$1/a^2-3a+2 + 1/a^2-5a+6 + 2/a^2-8a+15$

Required

Simplify

$1/a^2-3a+2 + 1/a^2-5a+6 + 2/a^2-8a+15$

Collect Like Terms

$1/a^2 + 1/a^2 + 2/a^2-3a-5a-8a+2+6+15$

$1/a^2 + 1/a^2 + 2/a^2-16a+23$

Add Fractions:

$\frac{1+1+2}{a^2} + 16a + 23$

$\frac{4}{a^2} + 16a + 23$

This can be further expressed as:

$\frac{4+16a^3+23a^3}{a^2}$

4 0

3 years ago