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harkovskaia [24]
3 years ago
8

What expression is equivalent to 10x^6y^12/-5x^-2y^-6?

Mathematics
1 answer:
Tom [10]3 years ago
4 0

Answer:

−2 x^ 8 y ^18

Step-by-step explanation:

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Consider function f.
tekilochka [14]

Given:

The function is:

f(x)=\sqrt{7x-21}

To find:

The steps of finding the inverse function f^{-1}(x).

Solution:

We have,

f(x)=\sqrt{7x-21}

The steps of finding the inverse function are:

Step 1: Substitute f(x)=y.

y=\sqrt{7x-21}

Step 2: Interchange x and y.

x=\sqrt{7y-21}

Step 3: Taking square on both sides, we get

x^2=7y-21

Step 4: Adding 21 on both sides, we get

x^2+21=7y

Step 5: Divide both sides by 7.

\dfrac{1}{7}x^2+3=y

Step 6: Substitute y=f^{-1}(x).

\dfrac{1}{7}x^2+3=f^{-1}(x), where x\geq 0.

Therefore, the inverse of the given function is f^{-1}(x)=\dfrac{1}{7}x^2+3 and the arrangement of steps is shown above.

7 0
3 years ago
5pts and whoever has the correct answer gets brainliest ​
USPshnik [31]

Answer:

B

Step-by-step explanation:

8 0
2 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPASAPPPPP
melisa1 [442]

Answer:

y= -2/3x-4

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The breaking strengths of cables produced by a certain manufacturer have a mean, u, of 1750 pounds, and a standard deviation of
AlladinOne [14]

Answer:

We accept the null hypothesis that the  breaking strength mean is less and equal to 1750 pounds and has not increased.

Step-by-step explanation:

The null and alternative hypotheses are stated as

H0:  u ≥ 1750   i.e the mean is less and equal to 1750

against the claim

Ha: u > 1750  ( one tailed test)  the mean is greater than 1750

Sample mean = x`= 1754

Population mean = u = 1750

Population deviation= σ = 65 pounds

Sample size= n = 100

Applying the Z test

z= x`- u / σ/ √n

z= 1754- 1750 / 65/ √100

z= 4/6.5

z= 0.6154

The significance level alpha = 0.1

The z - value at 0.1 for one tailed test is ± 1.28

The critical value is z > z∝.

so

0.6154 is < 1.28

We accept the null hypothesis that the  breaking strength mean is less and equal to 1750 pounds and has not increased.

8 0
3 years ago
If f(x) = k(x - 2)4, where k is positive, what is the effect on
Reika [66]

Answer:

The graph of f(x) is stretched vertically.

Step-by-step explanation:

k is a stretch factor, which multiplies the primitive function g (x) = (x-2)^{4} and f(x) is stretched vertically.

4 0
3 years ago
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