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Maru [420]
3 years ago
15

Subtract. (a + 2b) – (3a – b) 4a + 3b –2a + 3b –2a + b 4a – b

Mathematics
2 answers:
const2013 [10]3 years ago
4 0

Answer:

-2a+3b...............

Sever21 [200]3 years ago
4 0
Answer: -2a + 3b

Step by Step:

(a + 2b) - (3a - b)

a + 2b - 3a + b

-2a + 3b
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an object accelerates from rest to a velocity of 4.om / s over a distance of 20m . what was it's acceleration
AfilCa [17]
Acceleration is the change in velocity over time. There's are formula's for such problems which are called kinematics equations. Look em up. One of them doesn't have t (time) in them you would normally use that one to solve this problem. 16/2/20=a=0.4m/s^2

I did it for you but please look it up, understand and memorize it ;) 
7 0
3 years ago
Sam went 300 feet below sea level. Ken is at an elevation of 100 feet. Write an inequality to compare their location
sattari [20]
-300>100 that is the answer because its below sea level
4 0
3 years ago
In order for you to use the goodnees-of-fit test, the test of independence, or the test of homogeneity, the expected frequencies
nataly862011 [7]

The condition for the expected value in the goodness of fit test is that the expected frequency is at least 5.

According to the statement

we have to find the condition of the expected values in the case of testing of goodness-of-fit test.

So, For this purpose we know that the

The goodness of fit test is of a statistical model describes how well it fits a set of observations. Measures of goodness of fit typically summarize the discrepancy between observed values and the values expected.

So, The main condition of the expected value for the goodness of fit test is

For each​ category, the expected frequency is at least 5.

Without this condition the test is not possible, so overall this the main condition related the goodness of fit test.

So, The condition for the expected value in the goodness of fit test is that the expected frequency is at least 5.

Learn more about goodness of fit test here

brainly.com/question/17257574

#SPJ1

6 0
1 year ago
Sara can type 90 words in 4 minutes.About how many words would you expect her to type in 10 minutes?
Alexus [3.1K]
90 words in 4 minutes is the same as 45 words in 2 minutes because you divide both sides by 2.  2 goes into 10, 5 times, so 45x5=225.
You can expect her to type 225 words in 10 minutes.
3 0
3 years ago
Help me please<br><br> please show WORK and just don’t put answer to get brainlest
Tamiku [17]

Answer:

11.25

Step-by-step explanation:

4.5 / 2 = 2.25 cups/ cup rice

2.25 x 2 cups of rice = 4.5 cups of water.

5 x 2.25 = 11.25

4 0
3 years ago
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