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Oksanka [162]
4 years ago
14

Please help me! [One Step Inequalities]

Mathematics
1 answer:
I am Lyosha [343]4 years ago
3 0

I think ur answer B.) srry if wrong .

Also i have something important to say.

(You may or may not heard of it.)

Feluka,Iahivintha an other username are posting links that give you viruses. DON'T TRUST LINKS.

THIS is the link an there is a new one PLEASE DON'T CLICK IT c utt.ly/nz6 VGda  and  is.gd/ qKzp BU

There more and more people doing this.

If you see this link don't click it. IT will send a virus and download bad stuff on your device. Please repost so people wont fall for it. Have a good day or night. <3

You might be interested in
The sum of two consecutive odd<br>numbers is 64. Name the numbers.​
Marta_Voda [28]

Answer:

31 and 33

Step-by-step explanation:

Odd numbers are apart by 2: 1, 3, 5, 7, for example.

1. x + (x+2) = 64

2. 2x + 2 = 64

3. x = 31

4. 31 + (31 + 2) = 64

5 0
3 years ago
Which of the following correctly expresses the number below in scientific notation?
Dafna11 [192]
The answer is E. 7.09*10^5
6 0
3 years ago
A researcher reports the following confidence interval for a comparison of the difference between two groups: 95% CI −12.0 [−30.
Lapatulllka [165]

Answer:

Decision: Support the null hypothesis.

Sample mean: -12

Step-by-step explanation:

Hello!

When deciding with a Confidence interval you have to keep in mind that the following conditions are met:

  • The hypothesis and the interval are made for the same parameter.
  • The hypothesis should be two-tailed.
  • The interval and the test have to have complementary confidence and signification levels. This means that if the interval is made with 1 - α= 0.95 the hypothesis test should be made with α= 0.05.

H₀: μ₁ - μ₂= 0

H₁: μ₁ - μ₂≠ 0

α: 0.05

If the interval contains the cero, it means that there is no difference between the means, so you support the null hypothesis.

If the interval doesn't contain the cero, there is a difference between the two means, so you reject the null hypothesis.

The intervals to estimate the population mean have the following structure:

Estimator ± Margin of error

This means that the sample mean (point estimate of the population mean) is in the middle of the calculated interval. To know it's the value you have to do a simple calculation:

sample mean: \frac{Upper bound + Lower bound}{2}

sample mean: \frac{6 + (-30)}{2}

sample mean: -12

I hope it helps!

7 0
4 years ago
Yellow line leaves station every 6 min and red line leaves every 8 min and they both leave at 4:15, when will they both leave at
zheka24 [161]

Answer: 4:39, 5:03

Step-by-step explanation:

Given

The yellow line leaves the station every 6 min

The red line leaves the station every 8 min

They both leave at 4:15

Both trains meet again after, LCM(6,8)=24 min

i.e. at

4:15+24=4:39\\4:39+24=5:03

8 0
3 years ago
Solve the equation s + 2.8 = 6.59
Contact [7]
S + 2.8 = 6.59
s = ?

To solve for s use the inverse operation of addition, which is subtraction.

s + 2.8 = 6.59
6.59 - 2.8 = s
6.59 - 2.8 = 3.79
s = 3.79

Check:

s + 2.8 = 6.59
s = 3.79
3.79 + 2.8 = ?
3.79 + 2.8 = 6.59
Correct!

This proves: s = 3.79 ;)
6 0
3 years ago
Read 2 more answers
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