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Irina18 [472]
3 years ago
14

For what value of X is the rational expression below equal to zero?

Mathematics
1 answer:
Sophie [7]3 years ago
5 0

Answer:

Option D, x = 1

Step-by-step explanation:

In order for that equation to equal to zero, you need the numerator (the top) to equal zero and the denominator (the bottom) to equal literally anything BUT ZERO.

To satisfy the first part we set the top binomial equal to zero.

x - 1 = 0

x = 0 + 1

x = 1

Plug in x = 1 to the bottom to see if it satisfies to second part; we're looking for everything but zero.

(x - 3)(x + 1)

(1 - 3)(1 + 1)

(- 2)(2) = - 4

Your answer is x = 1, option D.

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The grades on a math midterm at Springer are roughly symmetric with \mu = 78μ=78mu, equals, 78 and \sigma = 5.0σ=5.0sigma, equal
mr Goodwill [35]

Answer:

-2.8

Step-by-step explanation:

Given that:

Mean, μ = 78

Standard deviation, σ = 5

Omar's score, x = 64

The Zscore of Omar's score :

Zscore = (x - μ) ÷ σ

Zscore = (64 - 78) / 5

Zscore = - 14 / 5

Zscore = - 2.8

Hence, Omar's exam score is - 2.8

8 0
3 years ago
PLEASE HELP WITH THIS QUESTION, WILL MARK BRAINLIEST + 10 POINTS<br> #17
slega [8]
Sin 30 = 16/x
x = 16/sin 30 = 32
The answer is d: 32.
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3 years ago
The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to find out the fraction of peopl
Zinaida [17]

Answer:

Step-by-step explanation:

Hello!

The variable of interest is X: number of criminals in the 10 Most Wanted list that were captured in a sample of 523 suspected criminals.

The number of criminals that were captured is 172 out of 523.

To calculate the sample proportion, you have to divide the number of success, in this case, captured criminals, by the total number of criminals sampled:

^p= 172/523= 0.329

I hope this helps!

7 0
3 years ago
Anyone??? need some help huys:)
atroni [7]

Slope-intercept form:

y = mx + b        "m" is the slope


First i would isolate the "y" in the equation.

2x + y = 4       Subtract 2x on both sides

2x - 2x + y = 4 - 2x

y = 4 - 2x    or     y = -2x + 4

The given line's slope is -2.


For lines to be perpendicular, their slopes have to be the opposite/negative reciprocals (flipped sign and number)

For example:

slope is 2

perpendicular line's slope is -1/2

slope is -2/3

perpendicular line's slope is 3/2


The given line's slope is -2, so the perpendicular line's slope is 1/2.

The 3rd option is your answer

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3 years ago
98 POINTS! The origin of the three planes is a point. True or False
allsm [11]
False :) that is the anwser 
6 0
3 years ago
Read 2 more answers
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