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Natali5045456 [20]
2 years ago
11

Which expression is equivalent to (x⁴/³ x²/³)¹/³ x²/⁹ x²/³ x⁸/²7 x⁷/³

Mathematics
1 answer:
Andreas93 [3]2 years ago
8 0

Answer:

it really depends on what x =

Step-by-step explanation:

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The distribution of scores on the SAT is approximately normal with a mean of mu = 500 and a standard deviation of sigma = 100. F
ella [17]

Answer:

a. 2.28%

b. 30.85%

c. 628.16

d. 474.67

Step-by-step explanation:

For a given value x, the related z-score is computed as z = (x-500)/100.

a. The z-score related to 700 is (700-500)/100 = 2, and P(Z > 2) = 0.0228 (2.28%)

b. The z-score related to 550 is (550-500)/100 = 0.5, and P(Z > 0.5) = 0.3085 (30.85%)

c. We are looking for a value b such that P(Z > b) = 0.1, i.e., b is the 90th quantile of the standard normal distribution, so, b = 1.281552. Therefore, P((X-500)/100 > 1.281552) = 0.1, equivalently  P(X > 500 + 100(1.281552)) = 0.1 and the minimun SAT score needed to be in the highest 10% of the population is 628.1552

d. We are looking for a value c such that P(Z > c) = 0.6, i.e., c is the 40th quantile of the standard normal distribution, so, c = -0.2533471. Therefore, P((X-500)/100 > -0.2533471) = 0.6, equivalently P(X > 500 + 100(-0.2533471)), and the minimun SAT score needed to be accepted is 474.6653

4 0
3 years ago
HELP ME ASAP BRAINLIEST UP FOR GRABS
Volgvan

Answer:

52.0 m

Step-by-step explanation:

The triangle formed by the flagpole, the ground and the 30° line is a right triangle, with x as the required length to be found.

Using the tangent ratio

tan30° = \frac{opposite}{adjacent} = \frac{30}{x} ( multiply both sides by x )

x × tan30° = 30 ( divide both sides by tan30° )

x = \frac{30}{tan30} ≈ 52.0 m

6 0
3 years ago
Is this how you post anyway I'm in class on here looking for non serious questions
Stolb23 [73]
Black lives matter , yes they do
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3 years ago
a grocery store employee puts 8 bagels in each bags. If she has 385 bagels,about how many bags does she need?
Sonja [21]

385 bags/ 8 bagels per bag = 48 r 1

48 1/8 bags

She will need 49 bags to put all the bagels in.

4 0
3 years ago
Read 2 more answers
What are the berriers of communication​
astraxan [27]

Step-by-step explanation:

PHYSICAL- caused by time place space climate noise

CULTURAL - caused by cultural diversity

PSYCHOLOGICAL- caused by mood and attitudes

ORGANIZATIONAL- filtering negative organisational climate absence of communication policy

LACK OF INTEREST

INTERPERSONAL

LINGUISTICS

PERCEPTUAL DIFFERENCES

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