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2 years ago

Which inequality represents the graph below?

Mathematics

1 answer:

telo118 [61]2 years ago

7 0

Answer:

The answer is B

the shaded part is below which signifies a less than sign

so you can cross out options A and C

now make y=0

for option B, it will give √Xless than or equal to √4

for option D, it will give √4 less than or equal to √x

to bring √x to the other side, the inequality sign will change to greater than

Therefore the answer is B

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Each point that lies on a circle satisfies that equation for that circle

Cloud [144]

Assuming this is the T/F question from the apex course, the answer is True!

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3 years ago

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Solve the system of equations by elimination: −5x+3y=2 −5x−5y=−30

Sonbull [250]

Answer: 1 : -5x + 3y = 2 Equation 2 : -5x - 5y = -30 Because both equations the system of equations by elimination.

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3 years ago

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in any given year a factory has a 10% probability of having a serious accident. about every how many years might the factory exp

Likurg_2 [28]

Years for one serious accident is 10 year

Given:

Probability of having a serious accident = 10% every year

P(serious accident) = 0.1

Number of years = n

Computation:

Years for one serious accident = 1 / Probability of having a serious accident

Years for one serious accident = 1 / P(serious accident)

Years for one serious accident = 1 / 0.1

Years for one serious accident = 10 year

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5 0

3 years ago

Im being timed! HURRYYYYYYYYY simplify:

Mamont248 [21]

Answer:

B. $p^2+p-11$ .

Step-by-step explanation:

Step 1:

$((((3+(4*(p^2)))-5p)-3p^2)+4p)+8$

Step 2:

$((((3 + 22p^2) - 5p) - 3p^2) + 4p) + 8$

Step 3:

Factoring $p^2-p+11$
The first term is, $p^2$ its coefficient is 1 .
The middle term is, -p its coefficient is -1 .
The last term, "the constant", is +11
Step-1 : Multiply the coefficient of the first term by the constant 1 • 11 = 11
Step-2 : Find two factors of 11 whose sum equals the coefficient of the middle term, which is -1 .
-11 + -1 = -12
-1 + -11 = -12
1 + 11 = 12
11 + 1 = 12
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored

Final Solution:

$p^2 + p - 11$

5 0

2 years ago

An operation manager at an electronics company wants to test their amplifiers. The design engineer claims they have a mean outpu

andreyandreev [35.5K]

Answer:

The probability that the mean amplifier output would be greater than 364.8 watts in a sample of 52 amplifiers is 0.3156

Step-by-step explanation:

Mean output of amplifiers = 364

Standard deviation = $\sigma$ = 12

We have to find the probability that the mean output for 52 randomly selected amplifiers will be greater than 364.8. Since the population is Normally Distributed and we know the value of population standard deviation, we will use the z-distribution to solve this problem.

We will convert 364.8 to its equivalent z-score and then finding the desired probability from the z-table. The formula to calculate the z-score is:

$z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n} } }$

x=364.8 converted to z score for a sample size of n= 52 will be:

$z=\frac{364.8-364}{\frac{12}{\sqrt{52} } }=0.48$

This means, the probability that the output is greater than 364.8 is equivalent to probability of z score being greater than 0.48.

i.e.

P( X > 364.8 ) = P( z > 0.48 )

From the z-table:

P( z > 0.48) = 1 - P(z < 0.48)

= 1 - 0.6844

= 0.3156

Since, P( X > 364.8 ) = P( z > 0.48 ), we can conclude that:

The probability that the mean amplifier output would be greater than 364.8 watts in a sample of 52 amplifiers is 0.3156

8 0

4 years ago