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3 years ago

The solution of the equation 0 = 4 + 4{m+1} is

Mathematics

2 answers:

olga nikolaevna [1]3 years ago

7 0

Answer:

m= -9

Step-by-step

this should work because (4+4)+(-9+1)=0 an

im sorry if this is wrong but im 99% sure this is right

i only put things in parenthesis to make things work better in my brain

kifflom [539]3 years ago

4 0

Answer:

m = -2

Step-by-step explanation:

4 + 4{m + 1} = 0 {Subtract 4 form both sides}

4{m + 1} = -4

4m + 4 = -4 {Subtract 4 form both sides}

4m = -4 - 4

4m = -8 {Divide both sides by 4}

m = -8/4

m = -2

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Expand & simplify<br> (x+1)2

stepan [7]

Answer:

(2x+2)

Step-by-step explanation:

4 0

3 years ago

David bought 30 shares of Amazon at the close price of $121.00. In a few years, David sells all of his shares at $143.50. How mu

Naddik [55]

30(143.50-121)

30(22.5)

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5 0

4 years ago

Some parts of California are particularly earthquake-prone. Suppose that in one metropolitan area, 32% of all homeowners are ins

Bumek [7]

Answer:

$P(X = 0) = 0.2138$

$P(X = 1) = 0.4025$

$P(X = 2) = 0.2841$

$P(X = 3) = 0.0891$

$P(X = 4) = 0.0105$

Step-by-step explanation:

For each homeowner, there are only two possible outcomes. Either they have invested in earthquake insurance, or they have not. The probability of a home owner having invested in earthquake insurance is independent from other homeowners. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

32% of all homeowners are insured against earthquake damage.

This means that $p = 0.32$

Four homeowners are to be selected at random.

This means that $n = 4$

Find the probability distribution of X.

This is the probability of each outcome

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{4,0}.(0.32)^{0}.(0.68)^{4} = 0.2138$

$P(X = 1) = C_{4,1}.(0.32)^{1}.(0.68)^{3} = 0.4025$

$P(X = 2) = C_{4,2}.(0.32)^{2}.(0.68)^{2} = 0.2841$

$P(X = 3) = C_{4,3}.(0.32)^{3}.(0.68)^{1} = 0.0891$

$P(X = 4) = C_{4,4}.(0.32)^{4}.(0.68)^{0} = 0.0105$

6 0

3 years ago

Match the solution set of each of the following inequalities with its graph.

8090 [49]

Answer:

Step-by-step explanation:

From the picture attached,

Number line Inequality

1). Arrow starting with a solid point from x = -2 x ≤ -2

directing towards negative numbers of x 2).Arrow starting with a hollow circle from x = 2 x >2

directing towards positive numbers of x

3). Arrow starting with a hollow circle from x = 2 x < 2 ⇒ x - 2 < 0

directing towards negative numbers of x

4). Arrow starting with a solid circle from x = 2 x ≥ 2 Or 2 ≤ x

directing towards positive numbers of x

5). Arrow starting with a hollow circle from x = -2 x > -2

directing towards positive numbers of x

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3 years ago

You are 330 from home and you are driving home and you are driving toward home at an average of 55mph. Wr Try and equation to re

DochEvi [55]

Wouldn't that be 330 miles? Units are important.

Let d represent your distance from home. At the beginning you're 330 miles away, driving home at 55 mph (average). If x represents the number of hours you've driven, then

d(x) = 330 miles - (55 mph)x

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3 years ago