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AveGali [126]
3 years ago
9

What is the simplified form of (4ab)^2

Mathematics
1 answer:
Alex3 years ago
7 0
Use\ (a\cdot b)^n=a^nb^n\\-----------------\\\\(4ab)^2=4^2a^2b^2=\huge\boxed{16a^2b^2}
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The answer is 5 to this expression
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Jennifer has $30. She goes to the food court to get food and drinks for
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She can buy 15 drinks
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The price-earnings (PE) ratios of a sample of stocks have a mean value of 10.5 and a standard deviation of 3. If the PE ratios h
MrRissso [65]

Answer:

a) 68% falls within 7.5 and 13.5

b) 95% falls within 4.5 and 16.5

c) 99.7% falls within 1.5 and 19.5

Step-by-step explanation:

Given that:

mean (μ) = 10.5, Standard deviation (σ) = 3.

The Empirical Rule (also called the 68-95-99.7 Rule)  for a normal distribution states that all data falls within three standard deviations. That is 68% falls within the first standard deviation (µ ± σ), 95% within the first two standard deviations (µ ± 2σ), and 99.7% within the first three standard deviations (µ ± 3σ).

Therefore using the empirical formula:

68% falls within the first standard deviation (µ ± σ) = (10.5 ± 3) = (7.5, 13.5)

95% within the first two standard deviations (µ ± 2σ) = (10.5 ± 2(3)) = (10.5 ± 6) = (4.5, 16.5)

99.7% within the first three standard deviations (µ ± 3σ) = (10.5 ± 3(3)) = (10.5 ± 9) = (1.5, 19.5)

6 0
3 years ago
If ABCD is an isosceles trapezoid what is the value of X ac=7x-21 and bd=5x+13
Zanzabum

7x - 21 = 5x + 13

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Hope this helps!


7 0
3 years ago
Read 2 more answers
Given f(x)=5x+4 solve for "x" when f(x)=24.
mars1129 [50]

Answer:

x=4

Step-by-step explanation:

f(x)=5x+4

By given,

f(x)=24

5x+4=24

5x=20

x=4

5 0
3 years ago
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