Can someone please help me with math

3. B

4. D

Step-by-step explanation:

3. The y-intercept is -4 and the slope is positive 2.

4.Substitute the values and check

Answer and Step-by-step explanation:

3.

Before we look at the answer choices, lets analyze the graph.

We see that as the graph goes right, the y values are positive, and that as the graph goes left, the y values become negative/decrease. (Graph, as in the line on the graph).

That means the graph has a positive slope. So we can get rid of any negative slopes (answer choices A and C).

Now, we look to see the rate of change of the graph. How many units does the graph go up and right right?

We see that the graph has a rate of change of 2, so that is the slope.

This means that answer choice B is the answer. The equation shows that it goes down 4 units as well, which is what the graph shows as well.

4.

For this one, we need to see the pattern in the table.

When we put 2 in for n, we get 6. When we put 3 in for n, we get 8. And when we put 4 in for n, we get 10.

Answer choice D works for this. If we plug 2, 3, and 4 in for this expression, we get:

2(2) + 2 = 4 + 2 = 6

2(3) + 2 = 6 + 2 = 8

2(4) + 2 = 8 + 2 = 10

So answer choice D is the answer.

#teamtrees #PAW (Plant And Water)

step-by-step explanation:

if x = 2 you have to find x to finish the problem

step-by-step explanation:

i found the life tables for the year 2012. 

life table of males at age 30. probability of dying between ages x and x+1

total population:  

29–30 . . . . . . . . . . . . 0.001030

30–31 . . . . . . . . . . . . 0.001061

males:  

29–30 . . . . . . . . . . . . 0.001420

30–31 . . . . . . . . . . . . 0.001448

white population

29–30 . . . . . . . . . . . . 0.001005

30–31 . . . . . . . . . . . . 0.001037

white males

29–30 . . . . . . . . . . . . 0.001372

30–31 . . . . . . . . . . . . 0.001399

non hispanic white population

29–30 . . . . . . . . . . . . 0.001083

30–31 . . . . . . . . . . . . 0.001116

non hispanic white males

29–30 . . . . . . . . . . . . 0.001477

30–31 . . . . . . . . . . . . 0.001503

jacob, non hispanic white male. 30 years old.

probability that jacob lives to be 30 years old. 

since the given probabilities are probabilities of dying, i think we simply subtract it from 1 to get the probability of living. we will use the probability of non hispanic white male.

                                          probability of living to be 30 y.o.

29 - 30 : 1 - 0.001477 = 0.998523

30 - 31 : 1 - 0.001503 = 0.998497