3 years ago

Exponents: Can me help me? This is the one, I just can't get.

Mathematics

1 answer:

aliina [53]3 years ago

4 0

Answer:

Step-by-step explanation:

x^y * x^-y

When the bases are the same, we add the exponents when multiplying

x^(y-y)

x^0

Anything to the zero power is 1 (except 0)

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kotegsom [21]

Answer:

<em>Refer to attached.</em>

Part 1

Since bearing is taken from north, i.e. 90°, this will be represented by -45° on the units circle.

Part 2

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Part 3

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3 years ago

The mass of Hinto's math is 4,367 grams. What is the mass of 5 math books in kilograms?

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Answer:

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3 years ago

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2 years ago

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Fifteen more than half a number is 9

rusak2 [61]

For this case, the first thing we must do is define a variable.

We have then:

x: unknown number

We now write the equation that models the problem:

$(\frac{1}{2}) x + 15 = 9$

From here, we clear the value of x.

We multiply both sides of the equation by 2:

$(\frac{2}{2}) x + 2 (15) = 2 (9)\\x + 30 = 18$

We subtract 30 on both sides of the equation:

$x + 30 - 30 = 18 - 30\\x = -12$

Answer:

The value of the unknown number is given by:

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Ryan bought 2 1/4 pounds of almonds and divided them into bags with 1/8 pound in each bag.

yaroslaw [1]

A: 1/8b = 2 1/4

B: 2 1/4 / 1/8 = 18
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