3 years ago

Please help me I need help

Mathematics

1 answer:

andriy [413]3 years ago

8 0

I think it might be 6

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Evaluate the expression.<br> (-5)(5) +5=

Ierofanga [76]

Answer:

Step-by-step explanation:

Here you go mate

Step 1

(-5)(5) +5 Equation

Step 2

(-5)(5) +5 Simplify

(-5)(5) +5

Step 3

(-5)(5) +5 Add and multiply them

(-25)+5

answer

-20

8 0

3 years ago

I will give u brainliest

Gre4nikov [31]

Answer:

rational

Step-by-step explanation:

6 0

3 years ago

Adult entrance fees to amusement parks in the United States are normally distributed with a population standard deviation of 2.5

kondor19780726 [428]

Answer: 1.509

Step-by-step explanation:

The formula of Margin of Error for (n<30):-

$E=t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : n= 22

Level of confidence = 0.99

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

Using the t-distribution table ,

Critical value : $t_{n-1, \alpha/2}=t_{21,0.005}= 2.831$

Standard deviation: $\sigma=\text{ 2.5 dollars }$

Then, we have

$E=( 2.831)\dfrac{2.5}{\sqrt{22}}\approx1.509$

Hence, the margin of error for a 99% confidence interval for the population mean =1.509

4 0

3 years ago

Is 3/1 rational or irrational

Arte-miy333 [17]

It is rational number because irrational numbers are endless

5 0

3 years ago

Paulina used 4. 1/2 yards of cloth. 1. 3/8 yards of white cloth 2. 3/4 yards of blue cloth to make a. Costume.How much cloth she

NemiM [27]

2 + 3/8 + 6/8 = 16/8 + 9/8 =

25/8

4 0

3 years ago

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