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Salsk061 [2.6K]
2 years ago
9

Please please help setting up this equation/ expression

Mathematics
1 answer:
Yuki888 [10]2 years ago
8 0

Answer:

(1/4)n - 3

Step-by-step explanation:

In math, "of" means times so the first part of the expression is 1/4 times n. Then add minus 3 because it says she subtracted 3.

You might be interested in
The mean salary of actuaries is LaTeX: \mu=\$100,000????=$100,000 and the standard deviation is LaTeX: \sigma=\$36,730????=$36,7
krek1111 [17]

Answer:

The lower limit of 95% confidence interval is 99002.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $100,000

Sample mean, \bar{x} = $111,000

Sample size, n = 36

Alpha, α = 0.05

Population standard deviation, σ = $36,730

First, we design the null and the alternate hypothesis

H_{0}: \mu = \$100,000\\H_A: \mu \neq \$100,000

We have to find the lower limit of the 95% confidence interval.

95% Confidence interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

111000 \pm 1.96(\dfrac{36730}{\sqrt{36}} )\\\\ = 111000 \pm 11998.4667 \\= (99001.5333,122998.4667)\\ \approx (99002,122999)

The lower limit of 95% confidence interval is 99002.

6 0
4 years ago
Find the surface area of a tissue box that is 6 inches wide, 10 inches long, and 5 inches tall
MissTica

Answer:

140

Step-by-step explanation:

SA=lw+lh+hw

6*10=60

10*5=50

5*6=30

60+50+30=140

6 0
3 years ago
Quickly answer please
ArbitrLikvidat [17]
C. It travels for 2 hours, then stops for 2 hours, and finally travels again for 1 hour
7 0
3 years ago
HELP MEEEEEEEEEE<br> solve and show your work<br> 3x^2-14x-5
yanalaym [24]

Answer:

Step-by-step explanation:

x − 5 = 0   ⇒   x1 = 5

3x + 1 = 0   ⇒   x2 = −1

3

≈ −0.333333

Factorization:

(x − 5)(3x + 1) = 0

Standard form:

3x2 − 14x − 5 = 0

Extrema:

Min = (2.333333, −21.333333)

Answer:

( 3 x + 1 )  ( x − 5 )

5 0
3 years ago
Explain why math is important in your everyday life. Give an example.
g100num [7]

Answer:

People use math knowledge when cooking. For example, it is very common to use a half or double of a recipe. In this case, people use proportions and ratios to make correct calculations for each ingredient. If a recipe calls for 2/3 of a cup of flour, the cook has to calculate how much is half or double of 2/3 of a cup.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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