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mel-nik [20]
3 years ago
8

Are these in the same FACT FAMILY?? 4 + 5 = 9 9 - 5 = 4

Mathematics
2 answers:
Levart [38]3 years ago
8 0

Step-by-step explanation:

I think yes I am not sure

sorry I took your points

a_sh-v [17]3 years ago
6 0

Answer:

yes cause they are the same #s

Step-by-step explanation:

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egoroff_w [7]

Answer:

numbers

Step-by-step explanation:

8 0
2 years ago
Simplify the following:<br> 3÷4i 15÷2-3i
seropon [69]

Answer:

7i=4.5

Step-by-step explanation:

Hope this helps

7 0
3 years ago
Help will mark as brainliest
inysia [295]
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7 0
2 years ago
Help. Please. Thank You.
GenaCL600 [577]

Answer:

(A)\ a=-6;b=4\\\\ (B)\ a=6;b=-4

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

y=mx+c

Where "m" is the slope and "c" is the y-intercept.

By definition:

1. If the lines of the System of equations are parallel (whrn they have the same slope), the system has No solutions.

2. If the they are the same exact line, the System of equations has Infinite solutions.

(A) Let's solve for "y" from the first equation:

3x-2y=-1\\\\-2y=-3x-1\\\\y=\frac{3}{2}x+\frac{1}{2}

You can notice that:

m=\frac{3}{2}\\\\c=\frac{1}{2}

In order make that the System has No solutions, the slopes must be the same, but the y-intercept must not. Then, the values of "a" and "b" can be:

a=-6\\\\b=4

Substituting those values into the second equation and solving for "y", you get:

-6x+4y=-2\\\\4y=6x-2\\\\y=\frac{6}{4}x-{2}{4}\\\\y=\frac{3}{2}x-\frac{1}{2}

You can idenfity that:

m=\frac{3}{2}\\\\c=-\frac{1}{2}

Therefore, they are parallel.

(B) In order make that the System has Infinite solutions, the slopes and the y-intercepts of both equations must be the same. Then, the values of "a" and "b" can be:

a=6\\\\b=-4

If you substitute those values into the second equation and then you solve for "y", you get:

6x+(-4y)=-2\\\\-4y=-6x-2\\\\y=\frac{-6}{-4}x-\frac{2}{-4}\\\\y=\frac{3}{2}x+\frac{1}{2}

You can identify that:

m=\frac{3}{2}\\\\b=\frac{1}{2}

Therefore, they are the same line.

3 0
3 years ago
Which statement is true?
Elis [28]

Answer: Last option is true,

Step-by-step explanation: All other option are false

8 0
2 years ago
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