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2 years ago

9

Financial planning does or does not require preparation

1 answer:

slega [8]2 years ago

4 0

financial planning does require preparation.

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Suppose you have 8 coins and you have at least one each of a quarter, a dime, and a penny. What is the least amount of money you

Black_prince [1.1K]

41 cents one quarter one dime six pennies

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2 years ago

The zeros of a parabola are –4 and 2, and (6, 10) is a point on the graph. Which equation can be solved to determine the value o

Oliga [24]

The equation of the parabola is
.. y = a(x +4)(x -2)

Substituting (x, y) = (6, 10) gives
.. 10 = a(6 +4)(6 -2)

The 4th selection is appropriate.

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2 years ago

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The National Assessment of Educational Progress (NAEP) includes a mathematics test for eighth-graders. Scores on the test range

LiRa [457]

Answer:

Its standard deviation is 3.79.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

$\sigma = 125, n = 1089$

So

$s = \frac{125}{\sqrt{1089}} = 3.79$

Its standard deviation is 3.79.

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3 years ago

What is the vertex of the parabola? f(x) = 2x² + 16x + 30

Viktor [21]

Answer:

y=2(x−4)²+3

Step-by-step explanation:

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2 years ago

What is the circumference of a circular swimming pool with a diameter of 20

worty [1.4K]

Answer:

A. 62.8 ft

Step-by-step explanation:

$C = \pi \: d = 3.14 \times 20 = 62.8 \: ft$

8 0

2 years ago

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