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goldenfox [79]
3 years ago
14

Which equation is not a function y=2x+3 x=4y+7 6x-5y=8 y^2=-5x-8

Mathematics
1 answer:
natka813 [3]3 years ago
5 0
Y^2=-5x-8. it is not a function because it does not pass the vertical line test when it is graphed.
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Evaluate the expression when x=-3<br><br> x ^2 + 8x-7
VMariaS [17]

You just have to plug in the -3

(-3)^(2)+8(-3)-7

Then the answer would be -22

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3 years ago
Y=-3x+5 <br> 5x-4y=-3<br> Trying to solve this problem
rodikova [14]
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3 years ago
Xerxes, Murray, Norah, Stav, Zeke, Cam, and Georgia are invited to a dinner party. They arrive in a random order and all arrive
Nikolay [14]

Answer:

0.143

Step-by-step explanation:

From counting principle, we can say that:

There are 7! ways of the 7 people to arrive first. Any one of them can come first. But, what is the probability that Xerxes with arrive first?

We take that Xerxes is the first one to arrive, then from the 7 - 1 = 6 remaining people, they can arrive in 6! ways. So

Probability Xerxes arrives first = 6!/7! = 0.1429

Rounding to 3 decimal places, it will be:

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7 0
3 years ago
What is the simplified expression of the following expression?
Tema [17]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
The tape diagram represents an equation,<br> 1.75<br> Write an equation to represent the image.
rjkz [21]

Answer:

5n=1.75

Step-by-step explanation:

Given: tape diagram

To find: an equation to represent the image

Solution:

In the image, the area of the tape diagram indicating 1.75 is equal to the sum of areas of all the five parts in the diagram such that each part indicates n.

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Here, we have assumed that 1.75 represents an area of the first rectangle, and n represents the area of each of the small rectangle.

3 0
3 years ago
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