All categories

2 years ago

I NEED YOUR HELLPPP!!

Mathematics

1 answer:

BaLLatris [955]2 years ago

6 0

Answer:

$y = -\frac{1}{2}x - 8$

Step-by-step explanation:

1. The slope-intercept form of a linear equation is y = mx + b, where y = y-coordinate, m = slope, x = x-coordinate, and b = y-intercept.

2. To find the slope, let's take the two points (-10,-3) and (-8,-4) to then plug their values into this formula: $\frac{y_2-y_1}{x_2-x_1}$

$\frac{-4-(-3)}{-8-(-10)}$
$-\frac{1}{2}$

3. Great, now that we have our slope, the equation looks like this so far: $y = -\frac{1}{2} x + b$ .

4. Since b is the y-intercept, b = -8 because the line intersects the y-axis at the coordinate, (0,-8).

5. When plugging in the values of m and b, we get the equation of $y = -\frac{1}{2} x - 8$

You might be interested in

What is the radius of the tall second cylinder with an 8.5" circumference?

yarga [219]

I hope this helps you

6 0

2 years ago

I need help cause i already did this but i got a 67 and thats not good so helppp me

olga_2 [115]

Subtract 10 from both sides

7 0

1 year ago

Read 2 more answers

1. At a certain company, the human resources department surveyed employee satisfaction. They collected the following data. (a) H

PilotLPTM [1.2K]

A] From the graph, there is strong correlation between the satisfaction score and salary, this is implied by the closeness of the points on the graph.
b] Given that Hilda use the function y=0.0005x +60 to model the relationship, the score for $65000 will be given as follows;
y=0.0005(65000)+60
y=92.5
The number 0.0005 shows the rate of change of job satisfaction with salary

4 0

3 years ago

The National Center for Health Statistics (NCHS) reports that 70%70% of U.S. adults aged 6565 and over have ever received a pneu

Marianna [84]

Answer:

11.44% probability that exactly 12 members of the sample received a pneumococcal vaccination.

Step-by-step explanation:

For each adult, there are only two possible outcomes. Either they received a pneumococcal vaccination, or they did not. The probability of an adult receiving a pneumococcal vaccination is independent of other adults. 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.

70% of U.S. adults aged 65 and over have ever received a pneumococcal vaccination.

This means that $p = 0.7$

20 adults

This means that $n = 20$

Determine the probability that exactly 12 members of the sample received a pneumococcal vaccination.

This is P(X = 12).

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

$P(X = 12) = C_{20,12}.(0.7)^{12}.(0.3)^{8} = 0.1144$

11.44% probability that exactly 12 members of the sample received a pneumococcal vaccination.

3 0

2 years ago

Given b(x) = [X+41, what is b(-10)?<br> – 10<br> -6<br> 6<br> 14

OLEGan [10]

Option C: 6 is the value of $b(-10)$

Explanation:

The given expression is $b(x)=|x+4|$

We need to determine the value of $b(-10)$

To find the value of $b(-10)$ , let us substitute $x=-10$ in the given expression.

Thus, substituting $x=-10$ in the expression, we have,

$b(-10)=|-10+4|$

Adding the terms, we get,

$b(-10)=|-6|$

Since, we know the absolute rule that $|-a|=a$ and the simplified expression is of the form $|-a|$ , let us apply the absolute rule in the simplified expression.

Thus, we have,

$b(-10)=6$

Thus, the value of $b(-10)$ is 6.

Hence, Option C is the correct answer.

3 0

2 years ago