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2 years ago

What is the sum or difference? 19x3 – 13x3

Mathematics

2 answers:

mojhsa [17]2 years ago

8 0

Answer:

Step-by-step explanation:

use pemdas. multiplication comes first and you go left to right. then you subtract the products of 19*3 and 13*3

alexdok [17]2 years ago

4 0

Answer:

the difference is 6x³

Step-by-step explanation:

19x3 – 13x3

=6x³

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Plums are 6 for $1.50, and a sign by the apples that are 5 for $3.00. What is the total cost of buying 2 plums and 2 apples?

Doss [256]

Answer:

The answer is $1.70

Step-by-step explanation:

If 6 plums are $1.50 you would divide $1.50 by 6 to get the unit cost, $.25. Then you do the same thing for the apples. $3.00 divided by the 5 apples is $.60. Now you need to multiply both unit costs by 2 then add them together to get $1.70

(plums) $1.50 / 6 = .25

(apples) $3.00 / 5 = .60

(plums) .25 x 2 = .50

(apples) .60 x 2 = $1.20

$1.20 + .50 = $1.70

Hopefully I could help!!

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3 years ago

Determine whether the normal sampling distribution can be used. The claim is p < 0.015 and the sample size is n

Svetradugi [14.3K]

Complete Question

Determine whether the normal sampling distribution can be used. The claim is p < 0.015 and the sample size is n=150

Answer:

Normal sampling distribution can not be used

Step-by-step explanation:

From the question we are told that

The null hypothesis is $H_o : p = 0.015$

The alternative hypothesis is $H_a : p < 0.015$

The sample size is n= 150

Generally in order to use normal sampling distribution

The value $np \ge 5$

$np = 0.015 * 150$

$np = 2.25$

Given that $np < 5$ normal sampling distribution can not be used

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3 years ago

Can some one help me im confused

LekaFEV [45]

1) first one....90-27=63°
2)180-128=52°>>>>that is B
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so...go for it !!!

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2 years ago

Read 2 more answers

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Answer:

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Step-by-step explanation:

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2 years ago

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