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grin007 [14]
2 years ago
12

Is (3,-1) a solution of this system: y=2-x 3-2y=2x

Mathematics
1 answer:
I am Lyosha [343]2 years ago
8 0
Plug in (3,-1) into equations to see:
-1=2-3
-1=-1 CHECK

3-2(-1)=2(3)
3+2=6
5=6 NO

This is not a solution.
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The temperature changes from 9°F to -5°F. Which of the following expressions model the distance on thermometer between 9°F and -
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Answer:

d = |- 5- 9|

Step-by-step explanation:

Given

Initial = 9^\circ F

Final = -5^\circ F

Required

Determine the difference

Represent this with d.

d is calculated using

d = |Final - Initial|

The equation becomes

d = |- 5- 9|

3 0
3 years ago
What is square root of 1+sinx/1+cos x.
Juli2301 [7.4K]

Answer:

the sqaure root of 1 is 1

Step-by-step explanation:

7 0
2 years ago
I don’t know the answer or how to do this, help!
makvit [3.9K]

Answer:

B.

Step-by-step explanation:

y = x^2 - x - 12

y = (x-4)×(x+3) that means x it either 4 or -3

y = x + 3

for x = 4 ➡ y = 3+4 ➡7

for x = -3 ➡ y = -3 + 3➡0

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6 0
2 years ago
What is the slope of line 2x-3y=19.<br>​
KengaRu [80]

Answer:

\frac{2}{3}

Step-by-step explanation:

Given Equation of line: y=mx+c,

where m = slope of line.

So, we will have to make y the subject to find the slope.

2x-3y=19\\2x-3y-2x=19-2x\\-3y=-2x+19\\y=\frac{-2x+19}{-3} \\y=\frac{2}{3} x-\frac{19}{3}

From here, we can see the slope of the line is \frac{2}{3}.

6 0
1 year ago
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Which of the following reasons helps explain why − 7/0 is not a rational number.
kvv77 [185]

Hi!

The number has a zero in the denominator.

If a number has a 0 in it's denominator, then it's not rational

Division by 0 is undefined.

Hope this helps you!

~Just a felicitous girlie

#HaveAWonderfulDay

SilentNature

7 0
2 years ago
Read 2 more answers
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