Can you help me please? explain why its a yes or no.

Mathematics

1 answer:

Rashid [163]3 years ago

6 0

Answer: No

Step-by-step explanation: it’s a no because. 19 - 15 does not equal out to 7 19 - 15 is 4 and that’s the wrong answer for 19 -15

hope this helps and is the right answer!

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1. A metal cylinder is measured to have a length of 5.00 cm and a diameter of 1.26 cm. Compute the volume of the cylinder in cm3

vichka [17]

Answer:

vol = 6.23 cm3

Step-by-step explanation:

dia = 1.26 cm

length = 5.00 cm

vol = area * L

vol = (pi * 1.26² / 4 ) * 5

vol = 6.23 cm3

3 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

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

Which expression is equivalent to: (x +9)(x+3)

labwork [276]

Answer:

Step-by-step explanation:

x*x=x^2

x*9=9x

x*3=3x

9x+3x=12x

9x3=27

x^2+12x+27