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leva [86]
3 years ago
6

Given f(x) = -5x + 1. What is f(-3)?

Mathematics
2 answers:
babunello [35]3 years ago
7 0

Answer:

f(-3) =16

Step-by-step explanation:

f(x) = -5x + 1

f(-3) means let x=-3

Substituting x=-3 into the equation

f(-3) = -5 (-3) +1

Multiplying -5 and -3

f(-3) = 15+1

f(-3) =16

Eduardwww [97]3 years ago
7 0

Answer:

16

Step-by-step explanation:

-5x-3=15

15+1=16

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Becky is 7 year older than half of Bryan's age. If Bryan is 36 how old is becky ?
Tanya [424]

Answer: Im going to guess 25

Step-by-step explanation: bryan is 36 half of 36 is 18 and becky is 7 years older than 18 which half so you would do 18+7=25 there is your answer.

I THINK DONT QUOTE ME ON THAT ANSWER

8 0
3 years ago
A bottled water distributor wants to determine whether the mean amount of water contained in 1-gallon bottles purchased from a n
mash [69]

Answer:

We fail to reject H0; Hence, we conclude that there is no significant evidence that the mean amount of water per gallon is different from 1.0 gallon

Pvalue = - 2

(0.98626 ; 1.00174)

Since, 1.0 exist within the confidence interval, then we can conclude that mean amount of water per gallon is 1.0 gallon.

Step-by-step explanation:

H0 : μ= 1

H1 : μ < 1

The test statistic :

(xbar - μ) / (s / sqrt(n))

(0.994 - 1) / (0.03/sqrt(100))

-0.006 / 0.003

= - 2

The Pvalue :

Pvalue form Test statistic :

P(Z < - 2) = 0.02275

At α = 0.01

Pvalue > 0.01 ; Hence, we fail to reject H0.

The confidence interval :

Xbar ± Margin of error

Margin of Error = Zcritical * s/sqrt(n)

Zcritical at 99% confidence level = 2.58

Margin of Error = 2.58 * 0.03/sqrt(100) = 0.00774

Confidence interval :

0.994 ± 0.00774

Lower boundary = (0.994 - 0.00774) = 0.98626

Upper boundary = (0.994 + 0.00774) = 1.00174

(0.98626 ; 1.00174)

7 0
3 years ago
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ch4aika [34]

Answer:

-7

Step-by-step explanation:

Domain is simply another way of saying input values. Input values are literally just x values (Any place on the x bar. Range is the same but instead of x values it is for y values.

5 0
2 years ago
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Nutka1998 [239]
You will have approximately $257 at the end of 8 years.
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3 years ago
A piece of wood is 3 1/2 feet long how many total inches long is it?
Kamila [148]

Answer:

42 inches

Step-by-step explanation:

1 foot is 12 inches

12 times 3=36

12 divided by 2=6

36+6=42

8 0
3 years ago
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