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lukranit [14]
3 years ago
7

What is the answer to 2x(-2)

Mathematics
2 answers:
Tpy6a [65]3 years ago
6 0

Answer: due to distributive property you multiply -2 by 2x and you get -4x

-4x

Step-by-step explanation:

Illusion [34]3 years ago
6 0

Answer:

-4x

Step-by-step explanation:

Distribute first.

2x times -2 = -4x

its basically 2 times -2 and then add the variable to the answer.

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Find x, y and z<br> 82"<br> 54
scZoUnD [109]

Answer:

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Step-by-step explanation:

6 0
3 years ago
According to the Mortgage Bankers Association, 8% of U.S. mortgages were delinquent in 2011. A delinquent mortgage is one that h
shepuryov [24]

Answer:

The probability that exactly one of these mortgages is delinquent is 0.357.

Step-by-step explanation:

We are given that according to the Mortgage Bankers Association, 8% of U.S. mortgages were delinquent in 2011. A delinquent mortgage is one that has missed at least one payment but has not yet gone to foreclosure.

A random sample of eight mortgages was selected.

The above situation can be represented through Binomial distribution;

P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....

where, n = number of trials (samples) taken = 8 mortgages

            r = number of success = exactly one

           p = probability of success which in our question is % of U.S.

                  mortgages those were delinquent in 2011, i.e; 8%

<em>LET X = Number of U.S. mortgages those were delinquent in 2011</em>

So, it means X ~ Binom(n=8, p=0.08)

Now, Probability that exactly one of these mortgages is delinquent is given by = P(X = 1)

                 P(X = 1)  = \binom{8}{1}\times 0.08^{1} \times (1-0.08)^{8-1}

                               = 8 \times 0.08 \times 0.92^{7}

                               = 0.357

<u><em>Hence, the probability that exactly one of these mortgages is delinquent is 0.357.</em></u>

4 0
3 years ago
Can u help me with number 7 I
Dmitrij [34]

Answer:

Scalene Triangle

Step-by-step explanation:

Defn
When all the three sides of the triangle are of different measures, it is a scalene triangle.

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2 years ago
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The y-intencept and x-intercept of the equation. (If you're solving a slope-graph)
If not, depends on the graph you're talking about.

Brainliest?! Hope it helps.
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3 years ago
Find the standard deviation for the following data (20, 30, 38, 40)
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C) 7. 133 I believe.....
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3 years ago
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