4 years ago

Please Help , Thank You !

Mathematics

2 answers:

kodGreya [7K]4 years ago

7 0

One, Three and Four are right answers.

Marina86 [1]4 years ago

7 0

All of them except "Several lines can be drawn through the same pair of points."

I'm not too sure, but I think this is the answer, Hope this helped!

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1. If you are asked to use elimination to solve for x", what do you need to multiply the bottom equation by to eliminate "y?

hram777 [196]

Answer:

-5

Step-by-step explanation:

There is different ways to solve methods of elimination but if you wanted to cancel y out you would multiply by the opposite sign....for example

7x + 5y = 19

-5 (2x + y = 19) ---> -10x -5y = 95

this would cancel out your y to solve for x so you can plug it back in and solve! hope this helps!!!

6 0

2 years ago

K=0 ∑ 39 8(− 8 7 ) k ≈

Anna11 [10]

Answer:

Step-by-step explanation:

5 0

3 years ago

Find the ratio of 18 and 30 reduced to simplest form...

saveliy_v [14]

First you'll take 18/2 which equals 9. Then 30/2 which equals 15. Then you can divide both 9 and 15 by 3. So 9/3 equals 3 and 15/3 equals 5. So the answer is 3:5.

4 0

3 years ago

Read 2 more answers

Plz help with question 10

Sophie [7]

I believe D is correct

8 0

3 years ago

Select the correct answer from each drop-down menu. y = x2 + 2x − 1 y − 3x = 5 The pair of points representing the solution set

katen-ka-za [31]

ANSWER

(-2,-1)

(3,14)

EXPLANATION

The given system is

$y = {x}^{2} + 2x - 1$

$y - 3x = 5$

$y = 3x + 5$

Equate both of them:

${x}^{2} + 2x - 1 = 3x + 5$

This implies that,

${x}^{2} - x - 6 = 0$

$(x - 3)(x + 2) = 0$

x=-2 or x=3

When x=-2, y=y=3(-2)+5=-1

(-2,-1) is a solution.

When x=3 , y=3(3)+5=14

(3,14) is also a solution.

7 0

3 years ago