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bija089 [108]
3 years ago
9

What is the value of 30-2(7+2)-1? A. 11 B.14 C.17 D. 19 HURRYYYU

Mathematics
2 answers:
OLEGan [10]3 years ago
7 0

Answer:

11

Step-by-step explanation:

30-2(7+2)-1

PEMDAS says parentheses first

30-2(9)-1

Then multiply

30 -18 -1

Then subtract

12-1

11

SIZIF [17.4K]3 years ago
5 0

Answer:

A. 11

Step-by-step explanation:

30 - 14 -4 - 1

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What is 18/32 in simplest form​
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Answer:

Step-by-step explanation:

18/32 is the same as 9/16 or 0.5625

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3 years ago
Which of the following best describes the equation below? y=-6x+7
Hitman42 [59]

Answer:

y=-6x+7    (Negative Slope)

Step-by-step explanation:

This equation is in slope intercept form.

7= y-intercept

-6= slope

This means that when you plot this on a graph, your slope will be negative.

5 0
3 years ago
A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has d
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Answer:

Read step by step explanation

Step-by-step explanation:

The owner already knows that the limit for the average time delivered pizzas is 38 minutes. So we conclude

1.-The resulting mean from sample data ( x ) ( 27 customers) need to be smaller than 38 minutes, any value of sample above 38 minutes means more time for the delivery action and will indicate a failure for the future project

2.-As sample size is smaller than 30 the test has to be  t-student one tail test to the left

Test hypothesis

Null hypothesis                       H₀                  x  = 38

Alternative hypothesis           Hₐ                  x  <  38

We should test at a significance level α  = 0,05       (α = 5%)

If the result of the test is to accept  H₀  delivery project won´t be implemented, if on the other hand, H₀ is rejected then in the condition of the alternative hypothesis we accept Hₐ the sample indicates that we have a smaller average time than 38 minutes.

4 0
3 years ago
What is the sum of X2-3x+7 and 3x2+5X-9
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3 years ago
CAN SOMEONE HELP ME PLS!!!!!
ad-work [718]

Answer:

5

Step-by-step explanation:

8 0
3 years ago
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