Which expression is equivalent to -2v+(-4)+8+(-3v)?

This relationship is not a function. Choose the sentence or

IRINA_888 [86]

Answer:

The input x = 1 has many outputs.

The graph is a vertical line.

Step-by-step explanation:

Hi there!

A function is defined as a relation that only gives one output for every given input. For every x-value, there is only one y-value.

Because the x-value of 1 gives us an infinite number of y-values, this is therefore not a function.

More generally, no vertical line is a function for this reason.

I hope this helps!

8 0

2 years ago

7.1 as a fraction or mixed number in simplest form?

Andreas93 [3]

The simpliest form is 71/10, the fraction

Step-by-step explanation:

Since this isn't a really small (1/1000000000) or really big (like the radius of the earth) number you don't need the standard notation, so the fraction 71/10 is the simpliest because there is only a decimal, so it can be a fraction of ten.

8 0

2 years ago

Read 2 more answers

Can someone solve the system of equations?

kogti [31]

Y=x^2-5

y=2x-5
y+5=2x
x=(y+5)/2

y=((y+5)/2)^2-5
y=(y^2+10y+25)/4-5
4y=y^2+10y+25-20
0=y^2+6y+5
0=(y+5)(y+1)
y= -5 or -1

y=2x-5 (y= -5 doesn't work for this one so use -1)
-1=2x-5
2x=4
x=2

Using these answers, you can choose answer D with reasonable certainty.

5 0

2 years ago

7. Which of the following statements is not

Amiraneli [1.4K]

Answer:

c

Step-by-step explanation:

it is because in (a) the square root of 112. is 10.58 which is in between 10 and 11

(B) the square root of 180 is 13.42 which is between 13&14

(c) the square root of 12 is 3.46 which is not between 4&5

6 0

3 years ago

Assuming a normal distribution, families spends an average of $500 on their monthly cell phone bills with a standard deviation o

lara [203]

The probability is 0.69.

We find the z-scores that correspond with each end of the range we're looking for. To find a z-score, we use the formula:
$z=\frac{X-\mu}{\sigma}
\\
\\=\frac{350-500}{75}=\frac{-150}{75}=-2$

$z=\frac{400-500}{75}=\frac{-100}{75}=-1.33$

Using a z-table (http://www.z-table.com) we see that the area under the curve left of the score 350 would be 0.228. The area under the curve left of the score 400 would be 0.918. To find just the range between 350 and 400, we subtract the area left of 350 from the area left of 400; this will give us just from 350 to 400:

0.918-0.228 = 0.69.

8 0

3 years ago

Which expression is equivalent to -2v​+(​-4)+8​+(-​3v)?

Which expression is equivalent to -2v+(-4)+8+(-3v)?