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2 years ago

Does the point (4 , 9) satisfy the equation y = x - 5?

Mathematics

1 answer:

stepladder [879]2 years ago

6 0

Answer:

(4, 9) does not satisfy the equation

Step-by-step explanation:

Given the linear equation, y = x - 5, and the point, (4, 9):

We can determine whether (4, 9) is a solution to y = x - 5 by substituting their values into the equation.

x = 4, and y = 9:

y = x - 5

9 = 4 - 5

9 = -1 (False statement)

As demonstrated in our calculations, it turns out that (4, 9) does not satisfy the equation. Therefore, (4, 9) is not a solution to y = x - 5.

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stira [4]

Answer:

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Step-by-step explanation:

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3 years ago

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topjm [15]

Answer:

8(3j -2)

4(6j -4)

Step-by-step explanation:

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Rewriting

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2 years ago

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In a group of eighteen people, each person shakes hands once with each other person in the group. How many handshakes will occur

miv72 [106K]

The number of handshakes that will occur in a group of eighteen people if each person shakes hands once with each other person in the group is 153 handshakes

In order to determine the number of handshakes that will occur among 18 people, that is, the number of ways we can choose 2 persons from 18 people.

∴ The number of handshakes = $^{18}C_{2}$

$^{18}C_{2} = \frac{18!}{(18-2)!2!}$

$^{18}C_{2} = \frac{18!}{16!2!}$

$^{18}C_{2} = \frac{18\times17\times16!}{16!\times2!}$

$^{18}C_{2} = \frac{18\times17}{2\times1}$

$^{18}C_{2} = \frac{306}{2}$

$^{18}C_{2} = 153$

∴ The number of handshakes = 153 handshakes

Hence. 153 handshakes will occur in a group of eighteen people if each person shakes hands once with each other person in the group.

Learn more here: brainly.com/question/1991469

5 0

2 years ago

Which expression is equivalent to -9(x – 4) – 6x?

kvv77 [185]

= -9(x – 4) – 6x
Multiply -9 by everything in parentheses first

= (-9*x) + (-9*-4) - 6x
= -9x + (36) - 6x

Combine like terms
= (-9x-6x) + 36

= -15x + 36

The middle choice is the answer:
-15x + 36

Hope this helps! :)

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3 years ago

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kobusy [5.1K]

1. 3 & 7 and 2 & 6

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3 years ago