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2 years ago

Please help ASAP Very easy !!!!

Mathematics

1 answer:

marta [7]2 years ago

5 0

Answer:

Brainleist is to be given to me!

Step-by-step explanation:

-2/3

its between -1 and 0 but is closer to -1

the only choises are -1/3 and -2/3 but its closer to -1 so it must be -2/3

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Lexie, a bowler, claims that her bowling score is more than 140 points, on average. Several of her teammates do not believe her,

Crazy boy [7]

Answer:

The test statistic is $t = 3.744$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 140$

The The level of significance is $\alpha = 0.05$

The sample size is n = 18

The null hypothesis is $H_o : \mu = 140$

The alternative hypothesis is $H_a : \mu > 140$

The sample mean is $\= x = 155$

The standard deviation is $\sigma = 17$

Generally the test statistics is mathematically represented as

$t = \frac{\= x - \mu }{ \frac{ \sigma}{ \sqrt{n} } }$

substituting values

$t = \frac{ 155 - 140 }{ \frac{ 17 }{ \sqrt{18} } }$

$t = 3.744$

7 0

3 years ago

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Tems11 [23]

Answeri think it’s 96 or 84 I’m. It sure I had this like 3 years ago

Step-by-step explanation:

7 0

3 years ago

Please help me with this homework

Leya [2.2K]

Answer:

Step-by-step explanation:

10^2+3^2=109 and sqrt 109 getting 10.4

3 0

3 years ago

Solve for x: |2x 6| − 4 = 20 (1 point) select one:

Irina18 [472]

A. x = 9 and x = 11 is the answer you are looking for

Hope I helped you ^^

4 0

3 years ago

Solve for x in the equation C = 8.5x + 6y. Show all work.

GarryVolchara [31]

C = 8.5x + 6y

Rearrange the equation by making the side with x, be on the Left Hand Side (LHS)

8.5x + 6y = C

Subtract 6y from both sides of the equation

8.5x + 6y - 6y = C - 6y

8.5x = C - 6y

Divide both sides of the equation by 8.5

(8.5x/8.5) = (C - 6y)/8.5

x = (C - 6y)/8.5

I hope this helped.

7 0

3 years ago