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3 years ago

Can someone determine the answer to -3+-5 and explain the steps using a number line

Mathematics

2 answers:

UNO [17]3 years ago

8 0

I hope you understood....if not...comment and I will be willing to still help

Anit [1.1K]3 years ago

3 0

Both numbers are negative. You're adding 2 negative numbers together so the answer will obviously be negative.

On a number line, put a point on -3. -5 is equal to subtracting 5. Subtracting goes backward. Move the point 5 numbers back. It will be on -8

Your answer is -8

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Answer:

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190% of what number is 76<br> Plz hurry I really want to get this done

pishuonlain [190]

Answer:

190 is 76% of 250

Step-by-step explanation:

We have, 76% × x = 190

Multiplying both sides by 100 and dividing both sides by 76,

we have x = 190 × 100/76

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If you are using a calculator, simply enter 190×100÷76, which will give you the answer.

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3 years ago

Use technology and the given confidence level and sample data to find the confidence interval for the population mean mu. Assume

Sphinxa [80]

Answer: (1.55, 6.45)

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\overline\ {x}\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Significance level : $\alpha: 1-0.99=0.01$

Critical value : $z_{\alpha/2}=2.576$

Sample size : n=41

Sample mean : $\overline{x}=4.0\text{ kg}$

Standard deviation : $\sigma=6.1\text{ kg}$

Then, 99% confidence interval for population mean will be :_

$4\pm\ (2.576)\dfrac{6.1}{\sqrt{41}}\\\\\approx4\pm2.45\\\\=(4-2.45, 4+2.45)=(1.55, 6.45)$

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3 years ago

Could y’all help me out?

77julia77 [94]

ok I have no Idea just wanted to tell you your killua profile pic is cute

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