3 years ago

PLS HELP

Mathematics

1 answer:

Naya [18.7K]3 years ago

5 0

I did the work for you but the answer would be 1 second

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Cuanto es 27% en fraccion

Brilliant_brown [7]

Answer:

the answer to your question is 27/100

Step-by-step explanation:

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2 years ago

What is the apparent solution to this system of equations?

const2013 [10]

The answer is 123456 okay

3 0

3 years ago

A statistics teacher started class one day by drawing the names of 10 students out of a hat and asked them to do as many pushups

HACTEHA [7]

Answer: b. 8.56 to 21.44

Step-by-step explanation:

Let $\mu$ be the mean number of pushups that can be done.

As per given , we have

Sample size : n= 10

Degree of freedom = n-1=9

Sample mean : $\overline{x}=15$

Sample standard deviation : $s=9$

Significance level : α=1-0.95=0.05

From t- distribution table ,

Critical two -tailed t-value for α=0.05 and df = 9 is

$t_{\alpha/2, 9}=t_{0.025,9}=2.2622$

Confidence interval for $\mu$ is given by :-

$\overline{x}\pm t*\dfrac{s}{\sqrt{n}}$

$=15\pm (2.2622)\dfrac{9}{\sqrt{10}}\\\\\approx 15\pm 6.44=(15-6.44,\ 15+6.44)\\\\=(8.56,\ 21.44)$

Hence, the 95% confidence interval for the true mean number of pushups that can be done is 8.56 to 21.44.

5 0

3 years ago

Jenna’s car can travel 15 miles on 300 gallons of gas. How far can it travel on 18 gallons of gas?

Allisa [31]

Answer:

the answer is 36 gallon

Step-by-step explanation:

6 0

2 years ago

I kinda need help with this

andreev551 [17]

Answer:

x = 1

Step-by-step explanation:

f(x) = 3 or y = 3

Locate y = 3 on the y- axis , go horizontally across to meet the line at (1, 3 )

Then

When f(x) = 3 , x = 1

7 0

3 years ago