All categories

3 years ago

A relation contains the points (1, 2), (2, -1), (3, 0), (4, 1), and (5, -1). Which statement accurately describes this relation?

Mathematics

2 answers:

patriot [66]3 years ago

7 0

Answer:

J The relation represents y as a function of x, because each value of x is associated with a single value of y.

Step-by-step explanation:

I'm sure of this

LenKa [72]3 years ago

7 0

Answer:

Step-by-step explanation:

i think so i’m not one hundred percent sure though ! Tell me if i’m wrong

You might be interested in

Y= |x-1| and y=3x+2

mart [117]

Y = |x - 1|

and

y = 3x + 2

Equating the values of y, we can write:

|x - 1| = 3x + 2

This means:

A) x - 1 = 3x + 2

x - 3x = 2 + 1

-2x = 3
⇒ x = -3/2 = -1.5

B) - ( x - 1) = 3x + 2
3x + x = 1 - 2
4x = -1
⇒ x= -1/4 = - 0.25

For x = -0.25
y = 3(-0.25) + 2 = 1.25

x = -1.5 is an extraneous root and is not applicable.

So the solution set is (-0.25, 1.25)

Option A gives the approximate solution set.

8 0

3 years ago

Read 2 more answers

look at pic 10 pts will mark brainilest

zvonat [6]

Answer:

Step-by-step explanation:

$9\frac{1}{8} = 2\frac{1}{4} +x$

$\frac{9*8+1}{8} =\frac{4*2+1}{4} +x$

$\frac{73}{8} =\frac{9}{4} +x$

$\frac{73}{8} =\frac{9+4*x}{4}$

do cross multiplication

$8(4x+9)=4*73\\32x+72=292\\32x=292-72\\x=220/32\\x=6.875$

5 0

3 years ago

The scores for a state's peace officer training test are normally distributed with a mean of 55 and a standard deviation of 12.

s344n2d4d5 [400]

Answer:

About 84% of the people have test scores that make them eligible to be interviewed

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 question, we have that:

$\mu = 55, \sigma = 12$

A state agency will only interview applicants with test scores of 43 or greater. About what percent of the people have test scores that make them eligible to be interviewed?

This is 1 subtracted by the pvalue of Z when X = 43. So

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

$Z = \frac{43 - 55}{12}$