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KatRina [158]
2 years ago
14

Help needed with this asap

Mathematics
2 answers:
maria [59]2 years ago
8 0

Answer:

f(-3) = 4(-3) + 5 = -12 + 5 = -7. the answer is #2.

Tems11 [23]2 years ago
7 0
2 , I just did this and got it right
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Ray opened a savings account with $600 at 4.5% interest compounded quarterly and kept it in the account for 2 years. How much wa
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600(1 +0.045/4)^8

Step-by-step explanation:

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2/3

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1 year ago
A survey of 32 different gas stations in Texas found the average price of gasoline to be $3.19 a gallon with a sample standard d
Leni [432]

Answer:

The value of test statistic is -4.1247

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = $3.26 a gallon

Sample mean, \bar{x} = $3.19 a gallon

Sample size, n = 32

Sample standard deviation, σ = $0.096

First, we design the null and the alternate hypothesis

H_{0}: \mu = 3.26\text{ dollars a gallon}\\H_A: \mu < 3.26\text{ dollars a gallon}

We use one-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{3.19 - 3.26}{\frac{0.096}{\sqrt{32}} } = -4.1247

Thus, the value of test statistic is -4.1247

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2 years ago
What is the simpler form of (6 + m^2) (6 -m^2)​
PtichkaEL [24]

Answer:

=36-m^4

Step-by-step explanation:

8 0
2 years ago
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