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3 years ago

What is the slope of the line represented by the equation

Mathematics

2 answers:

motikmotik3 years ago

6 0

Answer:

The slope is -2/3

Step-by-step explanation:

2x+3y= - 12

Rewrite the equation in slope intercept form

y = mx+b where m is the slope and b is the y intercep

Subtract 2x from each side

2x+3y -2x = -2x-12

3y = -2x-12

Divide by 3

3y/3 = -2/3 x -12/3

y = -2/3x -4

The slope is -2/3

Art [367]3 years ago

4 0

Answer:

C).

Step-by-step explanation:

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In 2017, the entire fleet of light‑duty vehicles sold in the United States by each manufacturer must emit an average of no more

pogonyaev

Answer:

0.6915

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 88, \sigma = 4[/ex]What is the probability that a single car of this model emits more than 86 mg/mi of NOX + NMOG?This is 1 subtracted by the pvalue of Z when X = 86. So[tex]Z = \frac{X - \mu}{\sigma}$

$Z = \frac{86 - 88}{4}$

$Z = -0.5$

$Z = -0.5$ has a pvalue of 0.3085

1 - 0.3085 = 0.6915

The answer is 0.6915

5 0

3 years ago

Evaluate the expression if a = 2, b = −3, c = −4, h = 6, y = 4, and z = −1. |2b−3y||+5z

lara [203]

Answer:

-23

Step-by-step explanation:

7 0

2 years ago

70% of a number is 98.

Reika [66]

Let 70% of X = 98

70%.x = 98

(70/100).x = 98

0,7x = 98

x = 98/0,7

x = 140

Then, 90%x = 90%.140

= 0,9.(140)

= 126

The answer to this question is Letter D)

I hope this has helped.

7 0

3 years ago

Read 2 more answers

For a fixed amount of a gas at a constant temperature, the volume of the gas is inversely proportional to its pressure. At a pre

Veronika [31]

we know that

A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form $y*x=k$ or $y=k/x$