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kow [346]
3 years ago
11

6(x+7)x=9 A.12 B.42 C.96 D.16 Please work out the problem.

Mathematics
1 answer:
marin [14]3 years ago
4 0
X = -\frac{7}{2} + \frac{1}{2}  \sqrt{55} or x = -\frac{7}{2} + -\frac{1}{2} \sqrt{55}
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An investment strategy has an expected return of 15 percent and a standard deviation of 9 percent. Assume investment returns are
IgorLugansk [536]

Answer:

68% of an investment earning a return between 6 percent and 24 percent.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 15

Standard deviation = 9

How likely is it to earn a return between 6 percent and 24 percent?

6 = 15 - 1*9

6 is one standard deviation below the mean

24 = 15 + 1*9

24 is one standard deviation above the mean

By the empirical rule, there is a 68% of an investment earning a return between 6 percent and 24 percent.

6 0
3 years ago
Given quadrilateral RSTU, determine if each pair of sides (if any) are parallel and which are perpendicular for the coordinates
Mrac [35]
Slope RS: 2/3
Slope ST: -3/2
Slope TU: 4/6 = 2/3
Slope UR: -1/5

Sides RS and TU have the same slope, so they are parallel.
The slope of side ST is the negative reciprocal of the slopes of sides RS and TU, so side ST is perpendicular to sides RS and TU.
Side UR is not parallel or perpendicular to any other side.

The quadrilateral is a trapezoid.
3 0
3 years ago
What if the bag did not tell us how many total servings and only told us how many total cups?
WINSTONCH [101]

Answer:

20 servings

Step-by-step explanation:

To find how many servings the bag would have, divide 5 by 0.25:

5/0.25

= 20

So, the bag would have 20 servings

7 0
3 years ago
Simplify:(100+4z)20
djverab [1.8K]

Answer:

5(25 + z)

Step-by-step explanation:

(100+4z)20 can be reduced, since 4 divides evenly into 100, 4 and 20:

(25 + z)(5), or 5(25 + z).

This result can be left as is, or rewritten as 125 + 5z.

5 0
3 years ago
hown below. (10pts) co identify Use the given starting value rate of and rate of change to write lete the an equation and comple
vlada-n [284]

Answer:

y.e.s.

Step-by-step explanation:

You Eat Socks

8 0
3 years ago
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