Which of the following lists of ordered pairs is a function

Mathematics

1 answer:

True [87]2 years ago

4 0

Answer:

Step-by-step explanation:

A function can't have the same number more than once, so the answer is A since there are no repeating numbers.

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HELP I DON'T UNDERSTAND THIS AT ALL!!!

Hatshy [7]

D__ is 7.5<x

C is x<10

Step-by-step explanation:

just do the inequality and graph

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2 years ago

Volgvan

What are you asking?

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2 years ago

Read 2 more answers

A cab charges $1.45 for a flat fee and $0.55 for each mile. write and solve an inequality to determine how many miles Ariel can

BigorU [14]

35-1.45=33.55
33.55/0.55=62
61 Miles

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2 years ago

A rectangle has a length that is three feet more than twice it's width. The perimeter of the rectangle is 78 feet. State the val

ivann1987 [24]

Let the width of the rectangle be 'w'

According to the question length of the rectangle (l) is three feet more than twice it's width;

$\longrightarrow$ l = (2w + 3) ft

Perimeter of rectangle = 78 ft

Formula of perimeter of rectangle = 2(Length + Width)

So,

$\rm \implies 2(Length + Width) = 78 \\ \\ \rm \implies 2(2w + 3 + w) = 78 \\ \\ \rm \implies 2(3w + 3) = 78 \\ \\ \rm \implies 2 \times 3(w + 1) = 78 \\ \\ \rm \implies 6(w + 1) = 78 \\ \\ \rm \implies w + 1 = \dfrac{78}{6} \\ \\ \rm \implies w + 1 = 13 \\ \\ \rm \implies w = 13 - 1 \\ \\ \rm \implies w = 12 \: ft$

$\therefore$ Width of the rectangle (w) = 12 ft

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2 years ago

Math help? 10 points!

Kipish [7]

Perimeter is when you add all the sides together...but oh, no! There are two sides missing! So we have to find it. The horizontal like could be x and the vertical, the y. x would be 3 because one side is 7 and the other side is 4, so if we subtract them, we get 3. Same for the vertical, the y would be 3. (3+3=6)

Now we could add all sides to get the last choice, or 26 cm.

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2 years ago