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Deffense [45]
4 years ago
12

How are negative exponents and positive exponents related?

Mathematics
1 answer:
Stolb23 [73]4 years ago
7 0

You can make a negative exponent positive by switching its numerator with its denominator and vice versa.

Examples:

x^{-2} = \frac{1}{x^2}

3x^{-2} = \frac{3}{x^2}

(3x)^{-2} = \frac{1}{(3x)^2}

\frac{1}{x^{-2}} = x^2

\frac{1}{3x^{-2}} = \frac{x^2}{3}

\frac{1}{(3x)^{-2}} = \frac{(3x)^2}{1} = (3x)^2

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An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this seq
frez [133]
<h3>Answer: 144</h3><h3>Step-by-step explanation:</h3><h3 />

Since, the first 9 multiple of 4 starts from 0 are,

0, 4, 8, 12, 16, 20, ................

Which is an AP,

Having the first term, a_1 = 0

And, the successive difference, d = 4,

Since, the sum of the n term of an AP,

S_n = \frac{n}{2}[2a + (n-1)d]

Hence the sum of 9 term of the above AP,

S_9 = \frac{9}{2}[2\times 0 + (9-1)\times 4]

S_9 = \frac{9}{2}(0 + 8\times 4)

S_9 = \frac{9}{2}(32)

S_9 = \frac{288}{2}=144

6 0
3 years ago
I need help with this problem
Anarel [89]

The midpoint lines are half the opposite side length.

Line DE is given as 7 , So Line F = 7 x 2 = 14

Line EF is given as 12, so Line D = 12 x 2 = 24

Line DF is given as 16, so line E = 16 x 2 = 32


The perimeter is the sum of the 3 sides:

Perimeter = 14 + 24 + 32 = 70

6 0
4 years ago
What is the answer for<br>2c/5&lt;8​
rosijanka [135]

Hello guys I am new here and I don't know how to answer your question

6 0
3 years ago
The speed of a stream is 4 mph a boat travels 3 miles upstream in the same time it takes to travel 11 miles downstream what is t
vazorg [7]
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6 0
3 years ago
Find QR. help please and thank you&lt;3
Advocard [28]

Answer:

QR = 1.3

Step-by-step explanation:

Sides TQ and TS are congruent, thus Δ QST is isosceles.

RT is a perpendicular bisector, that is it bisects QS at right angles, thus

QR = RS = 1.3

3 0
3 years ago
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