3 years ago

Solve the equation below:

Mathematics

2 answers:

Agata [3.3K]3 years ago

6 0

$\sqrt[3]{x^2-8}=2 \\ x^2-8=2^3=8 \\ x^2=16 \\ \\ \boxed{x=4 \ or \ -4}$

vagabundo [1.1K]3 years ago

3 0

Both x=4 and x=-4 satisfy the given equation. So, the correct answer is (c).

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Complete the square to solve<br> LaTeX: 0=-x^2+4x-5<br> Also written as<br> 0= -x^2+4x-5

Feliz [49]

X=2+-(plus or minus)i

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4 years ago

Two researchers, Jaime and Mariya, are each constructing confidence intervals for the proportion of a population who is left-

soldi70 [24.7K]

Answer:

Jaime's. Interval not centered around the point estimate.

Step-by-step explanation:

When constructing a confidence interval based on a point estimate, the obtained point estimate must be the central value of the interval.

For Jaime's interval

Lower bound = 0.078

Upper Bound = 0.193

$Central = \frac{0.078+0.193}{2} =0.1355$

For Mariya's interval

Lower bound = 0.051

Upper Bound = 0.189

$Central = \frac{0.051+0.189}{2} =0.12$

For a point estimate of 0.12, only Mariya's interval is adequate since Jaime's is not centered around the point estimate.

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3 years ago

Find the value of x in each case.

pentagon [3]

Answer:

Step-by-step explanation:

All triangles = 180 degrees

65 + 4x + x = 180

65 + 5x = 180

- 65 - 65

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

5x = 115

--- = ----

5 = 5

x = 23

4(23) = 92

F = x = 23

B> 65

92 + 23 + 65 = 180

x = 23

F> = B>

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3 years ago

Pleaseeeee help :'))))

jeka57 [31]

Answer:

The answer is

x= -35

Step-by-step explanation:

x/5= -7

x= -35. :-)

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3 years ago

Read 2 more answers

A lottery ticket has a grand prize of $48.9 million. The probability of winning the grand prize is .000000047. Determine the exp

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Is this a gcse question??

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3 years ago