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3 years ago

13

Can someone pls help

2 answers:

Basile [38]3 years ago

5 0

Answer:

15x - 2.

Step-by-step explanation:

3x - 1 + 2x + 1 + 4x - 2 + 4x - 4 + 2x + 4

= 15x - 2.

NemiM [27]3 years ago

5 0

Answer:

The total length of planting can be calculated by the following steps ;

Step-by-step explanation:

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Klio2033 [76]

The answer is the mean is 8. The range is equal to the largest number, 10 minus the smallest number, 5. It equals 5, so d is wrong. The mean is all of the values added together, 80, divided by the number of values, 10. So, 8. The median is the middle which is between 7 and 8, so 7.5. Five has no dots.

6 0

3 years ago

✨Please help it would mean a lot!:)✨

DENIUS [597]

Answer:

x=6.5

y= -.5

Step-by-step explanation:

Plug it in and see if it works to make sure. Good luck

3 0

2 years ago

Read 2 more answers

Can someone help me in number 6 please

marin [14]

I think it is asking for the answer, therefore it would be AB = 10.7

4 0

3 years ago

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Need help with homework, I'm having a hard time understanding what to do.

maks197457 [2]

Answer:

i know what you can do

go to jupiter to get more stupider

Step-by-step explanation: #6 yr old burns

#ameture hour

8 0

3 years ago

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 436.0 gram setting. It

Vilka [71]

Answer:

We conclude that the machine is under filling the bags.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 436.0 gram

Sample mean, $\bar{x}$ = 429.0 grams

Sample size, n = 40

Alpha, α = 0.05

Population standard deviation, σ = 23.0 grams

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 436.0\text{ grams}\\H_A: \mu < 436.0\text{ grams}$

We use one-tailed(left) z test to perform this hypothesis.

Formula:

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

Putting all the values, we have

$z_{stat} = \displaystyle\frac{429 - 436}{\frac{23}{\sqrt{40}} } = -1.92$

Now, $z_{critical} \text{ at 0.05 level of significance } = -1.64$

Since,

$z_{stat} < z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that the machine is under filling the bags.

8 0

3 years ago