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Dvinal [7]
3 years ago
5

Which property was used to simplify the expression?

Mathematics
1 answer:
scoundrel [369]3 years ago
4 0

The change that happened from the first half of the equation to the second half was you moved the 9 and the 4c around.

Commutative property of addition allows you to do that. It's what says that 2+3 is the same thing as 3+2

Hope this helps you

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Factor the expression.<br><br> t^2 - 14t + 49
NemiM [27]
(t-7)(t-7) is the answer !! :)
7 0
4 years ago
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For each pair of numbers, tell: By what percent of the first number is the second number larger? By what percent of the second n
MAVERICK [17]
The answer for the first question is 33.33%.
Reason: The second number (20) is larger than the first number (15) by 5 and 5 is 33.33% the first number.
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The answer for the second question is 25%, also.
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8 0
4 years ago
A university class has 26 students: 12 are art majors, 9 are history majors, 5 and are nursing majors. The professor is planning
azamat

Answer:

6.9%.

Step-by-step explanation:

Given that a university class has 26 students: 12 are art majors, 9 are history majors, 5 and are nursing majors, and the professor is planning to select two of the students for a demonstration, where the first student will be selected at random, and then the second student will be selected at random from the remaining students, to determine what is the probability that the first student selected is a history major and the second student is a nursing major the following calculations must be performed:

26 = 100

9 = X

9 x 100/26 = X

900/26 = X

34.61 = X

25 = 100

5 = X

500/25 = X

20 = X

0.2 x 0.3461 = X

0.069 = X

Thus, the probability that the first student selected is a history major and the second student is a nursing major is 6.9%.

8 0
3 years ago
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Find the length of the line below.
Volgvan

Answer:

2.1cm

Step-by-step explanation:

the line is 2cm and 1mm

7 0
2 years ago
Rodney owns 5 shirts for every 2 pairs of jeans he owns. Draw a model to represent the two quantities and then write a ratio to
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Answer:

Step-by-step explanation:

Let

x Shirts

y Pair of jean

The given parameter can be represented as:

5 shirts = 2 pairs of jeans

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5x=2y

Represent as a ratio:

x:y = 5:2

6 0
2 years ago
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