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anygoal [31]
3 years ago
9

F(t)=-2t+5 f( )=13 please help!!!

Mathematics
1 answer:
3241004551 [841]3 years ago
6 0

Answer:1,p5o

Step-by-step explanation:

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Step-by-step explanation: im not too sure but i think 1-2/5=3/5 which would be red so

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The solution of the equation 3(x+3)=12
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Answer:

1

Step-by-step explanation:

3(x + 3) = 12

Multiply 3 by both numbers in the parentheses.

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Subtract 9 from both sides of the equation.

3x = 3

Divide 3 from both sides of the equation.

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Two dice are rolled; find the probability for total: a) 1, b) 4 or 6; c) <13
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3 years ago
Researchers report that on average freshman who live on campus gain 15 pounds during their first year in college. You survey 10
neonofarm [45]

Answer: 1.460

Step-by-step explanation:

Given : Researchers report that on average freshman who live on campus gain 15 pounds during their first year in college.

Let \mu represents the population mean .

Then, the set of hypothesis will be:-

H_0: \mu=15

H_a:\mu\neq15

We assume that this is normal distribution.

Sample size : n = 10, which is a small sample (n<30) ,s o we use t-test.

Sample mean : \overliene{x}=16.2\ lbs

Standard deviation : \sigma=2.6

The test statistic for population mean for small sample is given by :-

t=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

t=\dfrac{16.2-15}{\dfrac{2.6}{\sqrt{10}}}=1.45951276623\approx1.460

Hence , the value of test statistic = 1.460

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3 years ago
Lan bought four bags of candy with 65 pieces in each bag. Her father gave her 20 more pieces of candy. She plans to divide all t
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4 peices of candy will be left over

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