3 years ago

Is this a function or not a function?

Mathematics

1 answer:

s344n2d4d5 [400]3 years ago

7 0

No it is not a function

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Give work for equations following: -x+2y<-4 2x+3y>6 thanks sooooo much!!!!

Schach [20]

Answer: See below

Step-by-step explanation:

A) $-x+2y < -4$

$-x+2y-2y < -4-2y$

$-x < -4-2y$

Multiply both sides by -1 and reverse the inequality:

$\left(-x\right)\left(-1\right) > -4\left(-1\right)-2y\left(-1\right)$

$x > 4+2y$

B) $2x+3y > 6$

$2x+3y-3y > 6-3y$

$2x > 6-3y$

$\frac{2x}{2} > \frac{6}{2}-\frac{3y}{2}$

$x > \frac{6-3y}{2}\\x > 3-\frac{3y}{2}$

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2 years ago

There is 1.95 dollars in a piggy bank and it is made up of 27 coins which are dimes and nickels how many of each coin are there

scZoUnD [109]

If there are 15 nickels which is $0.75 and 12 dimes which is $1.20, then that would equal $1.95 and be 27 coins.

5 0

3 years ago

Read 2 more answers

Find the slope of the line through each pair of points. (2, -4), (5,-8)

slega [8]

Answer:

$m=-\frac{4}{3}$

Step-by-step explanation:

$Slope=m=\frac{y_2-y_1}{x_2-x_1}$

Here

$(x_1, y_1)=(2, -4) \ \ and \ \ (x_2, y_2)=(5, -8)$

$m=\frac{-8-(-4)}{5-2}$

$m=-\frac{4}{3}$

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3 years ago

Write a 4 -digit number that is divisible by both 5 and 9

vodomira [7]

4500 is both divisible by 5 and 9
4500/9=500
4500/5=900

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3 years ago

Which value for x makes the sentence true?

Nat2105 [25]

A. x = 2
Would make your statement true

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3 years ago