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3 years ago

50 POINTS AND BRIANLIEST:Which of the following expressions is in its simplest form?

Mathematics

2 answers:

Finger [1]3 years ago

7 0

Answer:

A is in simplest form

Step-by-step explanation:

A: You cannot simplify a anymore

B: Can simplify +5 and +23

C: Can simplify +xy and +12xy

D: Can simplify -ab2 and -2ab2

Hope it Helps!

Sergeeva-Olga [200]3 years ago

4 0

Answer:

A. 8m + 4n - 5mn + 7

Step-by-step explanation:

Hope it helps!

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Harold bought 3 pounds of red apples

dalvyx [7]

Answer:

what's your question?

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3 years ago

Read 2 more answers

Plz answer and provide an explanation

riadik2000 [5.3K]

I believe it is A and Yes

The bigger the price is on an item, the more tax you would have to pay, so both numbers increase. As for whether or not there is a line through the dots, you use a line when you could go inbetween the points. For example, with this question you can have 0.24, 0.86, or any other number as the price and it would make sense. If the question was sales tax on a certain number of shirts, well, you can't buy half a shirt so you don't need anywhere inbetween the dots.

Proportional in these kinds of problems means whether or not the line curves. If it doesn't and is a straight line, then it is proportional.

8 0

3 years ago

100 points!!!<br><br> Multi-Step Equations with Distributive Property

ad-work [718]

Answer:

An example below

Step-by-step explanation:

5(4a + 7(a + 2b))

First simply the inside bracket using distributive property:

7(a + 2b)

7(a) + 7(2b)

7a + 14b

5(4a + 7a + 14b)

5(11a + 14b)

Use distributive property again

5(11a) + 5(14b)

55a + 70b

4 0

3 years ago

Read 2 more answers

In a survey, 36% of the students said that they kept an electronic diary. There were 900 students who kept an electronic diary.

Rasek [7]

The answer is 25000.

4 0

3 years ago

The percentage of people under the age of 18 was 23.5% in New York City, 25.8% in Chicago, and 26% in Los Angeles.

Hatshy [7]

Answer:

0.0158 = 1.58% probability that all of them are under 18.

Step-by-step explanation:

Probability of independent events:

If three events, A, B and C are independent, the probability of all happening is the multiplication of the probabilities of each happening, that is:

$P(A \cap B \cap C) = P(A)P(B)P(C)$

The percentage of people under the age of 18 was 23.5% in New York City, 25.8% in Chicago, and 26% in Los Angeles.

This means that $P(A) = 0.235, P(B) = 0.258, P(C) = 0.26$

If one person is selected from each city, what is the probability that all of them are under 18?

Since the three people are independent:

$P(A \cap B \cap C) = 0.235*0.258*0.26 = 0.0158$

0.0158 = 1.58% probability that all of them are under 18.

8 0

3 years ago