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kramer
2 years ago
14

.

Mathematics
1 answer:
Vlada [557]2 years ago
5 0

Answer:

A. -86

Step-by-step explanation:

The absolute value is the distance a number has from zero.

Two numbers that are the same, except that one is positive and negative, will have the same absolute value.

So, -86 and 86 have the same absolute value of 86. This is because they are both 86 away from 0.

So, A is the correct answer.

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The number of hours a lightbulb burns before failing varies from bulb to bulb. The population distribution of burnout times is s
liubo4ka [24]

ANSWER:

The average burnout time of a large number of bulbs has a sampling distribution that is close to Normal.

STEP-BY-STEP EXPLANATION:

The cental limit theorem states, that id the sample size is large (30 or more), then the sampling distribution of the sample means is approximately normal with mean ц and standar deviation б/\sqrt{n}

Thus the correct answer is the average burnout time of a large number of bulbs has a sampling distribution that is close to Normal.

6 0
3 years ago
What is three-fourths times a square of a number<br><br> just write the equation
zavuch27 [327]

Answer:

3/4(x^2)

Step-by-step explanation:

........................

5 0
2 years ago
Holly scored an 88, 91, 89, 84, and a 98 on the last five math tests. What is her mean test score?
zaharov [31]

Answer:the mean is 90

Step-by-step

you find the sum of the values then divide them by the amount of numbers in the set

7 0
2 years ago
The circle below has center C, and its radius is 4 feet. Find the area of the sector with central angle DCE given
garik1379 [7]

Answer:

area = \frac{8}{3}pie ft^2

Step-by-step explanation:

Area of sector is given as θ/360*πr²

Where,

θ = central angel of sector, m < DCE = 60°

r = radius = 4 feet

Area of sector = \frac{60}{360}*pie*4^2

area = \frac{1}{6}*pie*16

area = \frac{1*16}{6}*pie

area = \frac{16}{6}*pie

area = \frac{8}{3}pie ft^2

Area of the sector = 8/3π ft²

5 0
3 years ago
Can anyone please help me with this? I don't know how to do it.
ycow [4]

Answer:


Step-by-step explanation:

The easiest way to fill out the graph is to find the slope.

The slope is y = 2x + 1.

Insert the x values of the graph for x in the equation to find y.

y = 2(-6) + 1 = -12 + 1 = -11. (-6, -11).

y = 2(-2) + 1 = -4 + 1= -3. (-2, -3).

Then, for finding x, just insert y.

1 = 2x + 1. Subtract 1 from both sides to isolate x.

0 = 2x. x = 0. (0, 1).

y = 2(2) + 1 = 4 + 1 = 5. (2, 5)

3 = 2x + 1. Subtract 1 from both sides.

2 = 2x. x = 1. (1, 3).

The slope of this function is 2x. The y-intercept is 1. The x-intercept is -2.

4 0
3 years ago
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