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AlexFokin [52]
3 years ago
9

What index of y make value 1/y^2

Mathematics
1 answer:
____ [38]3 years ago
7 0

Answer:

(-2) is the index of y make value 1/y².

Step-by-step explanation:

We need to find what index of y makes value 1/y².

Here, the numerator is 1 and the denominator is y².

We know that,

\dfrac{1}{a^x}=a^{-x}

So, the given expression is :

\dfrac{1}{y^2}=y^{-2}

Hence, (-2) is the index of y make value 1/y².

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6x + 2y = 18 -4x - 2y = -6
mezya [45]

Answer:

x=6, y = -9

Step-by-step explanation:

6x + 2y = 18

-4x - 2y = -6

Add the two equations together to eliminate y

6x + 2y = 18

-4x - 2y = -6

------------------------

2x +0y = 12

Divide by 2

2x/2 = 12/2

x = 6

Then find y

6x+2y = 18

6*6 +2y = 18

36+2y = 18

Subtract  36 from each side

36+2y-36 = 18-6

2y = -18

Divide by 2

2y/2 = -18/2

y = -9

3 0
3 years ago
Read 2 more answers
Find all the real fourth roots of 0.0001.
Amiraneli [1.4K]
4th root is even so there can be negative solutions.
0.0001
0.001 * 0.1
0.01 * 0.1 * 0.1
0.1 * 0.1 *0.1 * 0.1

4th root (0.0001) = 0.1 or -0.1
6 0
3 years ago
Jacy earns 14$ each second. He earns 14$ each second for 18 years. How much money would he have if he saved up the money?
Ratling [72]

they deleted my answer and they wont tell me why- let me try again

<u><em>answer:</em></u> jacy would earn a total of $7,952,345,352 if he saved up for a total of 18 years.

<u><em>explanation:</em></u>

the total of seconds among 18 years: <em>568,024,668 seconds.</em>

we now take the 568,024,668 and multiply it by 14.

<em>our final answer is </em><em>$7,952,345,352.</em>

i dont know if this is a genuine question or not but here-

7 0
2 years ago
178.03 round to the nearest tens
Natali [406]

Answer:

178.0

Step-by-step explanation:


6 0
3 years ago
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A 35 - m tall building casts a shadow. the distance from the top of the building to the tip of the shadow is 36 m . find the len
Nookie1986 [14]
The illustration of the program is shown in the figure. The missing value is the length of the shadow, that is the base of the right triangle. Since the figure is a right triangle, we can use the pythagorean theorems

c^2 = a^2 + b^2

where c is the longest length or the hypotenuse and a and b are the other two shorter legs. Let's denote the length of the shadow as 'a'.

a = √(c^2 - b^2)
a = √(36^2 - 35^2)\
a = √71 = 8.43 m

5 0
4 years ago
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