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jolli1 [7]
3 years ago
11

Why do scientists prefer the metric system (meters, grams, etc?

Mathematics
1 answer:
nirvana33 [79]3 years ago
4 0
Everything is counted by 10's, so it's less of a chance of errors.
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A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has d
Alinara [238K]

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
Write x4 * x2 without exponents.
AveGali [126]

Hey there!

It’s very much impossible to make this equation without it being an exponent because the result has an exponent in it itself

x⁴ × x²

= (x × x × x × x) + (x × x)

≈ x⁴ ⁺ ²

≈ x⁶

Therefore, the answer should be: x⁶


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

7 0
2 years ago
What is 5X minus Y equals six minus 2X plus Y equals eight
34kurt

Answer:

x = 8/3, y = 22/3

Step-by-step explanation:

5x-y=6-2x+y=8

5x-y=8 --- 1

6-2x+y=8 --- 2

by solving 1 and 2, x = 8/3, y = 22/3

5 0
3 years ago
A bag contains 7 purple beads,4 blue beads,and 4 pink beads.What is the probability of not drawing a pink bead?
otez555 [7]
I want the phone so your answer is simple

7+4+4= 15

15-4=11

you answer is 11:4
4 0
4 years ago
Read 2 more answers
The length of a rectangle is 5/2 units greater than twice its width. If it’s width is w, which expression gives the perimeter of
SashulF [63]
P = 2(L + W)
L = 2W + 5/2

P = 2(2W + 5/2 + W)
P = 2(3W + 5/2)
P = 6W + 5
P - 5 = 6W
(P - 5) / 6 = W or 1/6P - 5/6 = W <===
3 0
3 years ago
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