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Semenov [28]
3 years ago
11

(-2ab+a-2)-(2ab+3) find the difference

Mathematics
1 answer:
zubka84 [21]3 years ago
5 0
First distribute the negative in front of the 2ab+3. Then combine like terms. The answer is -4ab+a-5
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a rectangular rug covers 1200 square inches on the floor. The length of the rug is 30 inches .What is the length in inches of th
Crank

Answer:

The length is 30 (which you aready said) and the width is 40

Step-by-step explanation:

1200/30=40

(another way)

120/30=4 (multiply each side by ten)

8 0
2 years ago
What is the range of function g if g(x) =-2f(x-3)
chubhunter [2.5K]

Answer:

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Step-by-step explanation:

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2 years ago
The graph shows the cost of buying tickets to a concert.
-Dominant- [34]

Answer:

305

Step-by-step explanation:

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4 0
2 years ago
Read 2 more answers
In a T-test, if your n=459, your DF is:<br><br> A. 459<br> B. 460<br> C. 458<br> D. A&amp;C
Stels [109]

Answer:

DF = 458

Step-by-step explanation:

In statistics, T-test have an extensive application. T-tests are used in hypothesis testing or inference about the population mean when the population standard deviation is not known. Nevertheless, they are used in making inference in paired samples or dependent samples t-test as well as independent samples.

The degrees of freedom, DF, is a characteristic of the student's t distribution which is used in T-tests. In a simple T-test;

DF = n - 1

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Given n is 459, DF = 459 - 1 = 458

Therefore, DF = 458

6 0
3 years ago
Anyone has an answer to this question?
mylen [45]

Answer:

1/100 cos100⁰ 100 0.1 tan100⁰

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