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Anastasy [175]
4 years ago
10

What is -2(-3+-1) ?????????????

Mathematics
2 answers:
Lerok [7]4 years ago
4 0

Answer:

8

Step-by-step explanation:

-2(-3+-1)

PEMDAS  parentheses first

-2 (-4)

then multiply and divide

8

Maru [420]4 years ago
3 0

Answer:

8

Step-by-step explanation:

-2(-3 + -1)

6 + 2

8

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After seeing countless commercials claiming one can get cheaper car insurance from an online company, a local insurance agent wa
kifflom [539]

Answer:

Null Hypothesis, H_0 : \mu_d = 0

Alternate Hypothesis, \mu_d\neq 0    

Step-by-step explanation:

We are given that a local insurance agent randomly selected profiles for 10 of his clients and checked online price quotes for their policies.

Then, based on paired data on the 10 clients (the price he offered them and the corresponding online quote), he obtained t-statistic = 0.709 p-value = 0.248.

Here , we will use the concept of Paired data test statistics because the prices that the local insurance agent offered and the corresponding online quotes are from the same single data. These information has not been taken from the two independent samples.

So, <u>Null Hypothesis</u>, H_0 : \mu_d = 0    

<u>Alternate Hypothesis</u>, \mu_d\neq 0    

Here, null hypothesis states that there is no difference between the price he offered them and the corresponding online quote.

On the other hand, alternate hypothesis states that there is difference between the price he offered them and the corresponding online quote.

Hence, this would be the correct null and alternative hypothesis.

3 0
4 years ago
Could someone help me with this?? thanks!
ANEK [815]

Answer:

Step-by-step explanation:

    1/4                     ( x+10)                   =                x -4

one fourth the sum of x and 10 is identical to x minus 4

5 0
3 years ago
(x + 3)(x -4) simplify
irga5000 [103]

Answer:

your answer is x^2 - x - 12

3 0
3 years ago
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Caroline has a collection of 280 coins. How many coins represent 5% of her collection?
Nataly [62]

Answer:

14 coins

Step-by-step explanation:

280 * 0.05 = 14

5 0
3 years ago
2. There are 18 girls and 21 boys in a classroom. Write the ratio of girls to boys<br><br><br>help​
grigory [225]

Answer:

6:7

Step-by-step explanation:

both values can be divided by 3

8 0
3 years ago
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