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Anna11 [10]
2 years ago
13

Order of operations

Mathematics
2 answers:
oee [108]2 years ago
4 0
Use the PEMDAS rule. So first do whatever is in the parenthesis. 8 squared is 64 so 65-64 is 1 and 1-2 is -1
dedylja [7]2 years ago
4 0
You would first do 13x5 which equals 65, then you would 8x8 which equals 64, then you would subtract 65-64 which equals 1, finally you would subtract 2-1, which equals 1, im pretty sure im right, but dont be afraid to tell me if im wrong :)
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HELP PLEASE PLEASE HELP<br> Solve for t.<br> -10t − -17t − 10t + -13 = 11
Marta_Voda [28]

-10t - (-17t) - 10t + (-13) = 11   (two negative signs makes a positive)

-10t + 17t - 10t - 13 = 11  Combine like terms

-3t - 13 = 11    Add 13 on both sides

-3t = 24     Divide -3 on both sides

t = -8




8 0
3 years ago
I ate a bunch of cookies. I had 10 cookies and now I have 6. What was the percent decrease?
kirza4 [7]

Answer:

6/10 - 1 = -0.4 = -40%

A decrease of 40%.

4 0
3 years ago
14. Use the given degree of confidence and Sample data to construct a confidence interval for the population mean. Assume that t
nirvana33 [79]

Step-by-step explanation:

Confidence interval = mean ± margin of error

CI = μ ± ME

The mean is μ = 8.7.

Margin of error = critical value × standard error

ME = CV × SE

At 95% confidence and 9 degrees of freedom, CV = 2.262.

SE = s / √n

SE = 3.3 / √10

SE = 1.04

The margin of error is:

ME = 2.262 × 1.04

ME = 2.36

CI = 8.7 ± 2.36

CI = (6.34, 11.06)

7 0
3 years ago
Can someone explain how you would write this in a equation?
Rom4ik [11]
Feet/Minute
r/t
10,000/10
Its 1000 feet every minute
Can you please answer my question from today if you can.

3 0
3 years ago
This is the question.
madreJ [45]

Answer:

8 rows and 3 extra

Step-by-step explanation:

40/5=8

43-40=3

4 0
3 years ago
Read 2 more answers
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