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m_a_m_a [10]
2 years ago
7

Which of the following is not a solution of the equation y=3x−4 ?

Mathematics
1 answer:
lisabon 2012 [21]2 years ago
6 0

Answer:

(-1, -1) is not a solution to the system

Step-by-step explanation:

Y = 3x - 4.             Substitute the points for x and y

2 = 3(2) - 4

2 = 2  solution

y = 3x - 4

-4 = 3(0) - 4

-4 = -4 solution

y = 3x - 4

8 = 3(4) - 4

8 = 8   solution

y = 3x - 4

-1 = 3(-1) - 4

-1 = -7 not solution

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The product of two consecutive positive even integers is 168. What are the two integers?
Aneli [31]

Answer:

<h2>12, 14</h2>

Step-by-step explanation:

n,\ n+2-\text{two consecutive positive even integers}\\\\(n)(n+2)-\text{their product}\\\\168-\text{their product}\\\\\text{The equation:}\\\\n(n+2)=168\qquad\text{use the distributive property}:\ a(b+c)=ab+ac\\\\(n)(n)+(n)(2)=168\\\\n^2+2n=168\qquad\text{add 1 to both sides}\\\\n^2+2n+1=168+1\qquad\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\n^2+2(n)(1)+1^2=169\\\\(n+1)^2=169\iff n+1=\pm\sqrt{169}\\\\n+1=\pm13\qquad\text{subtract 1 from both sides}\\\\n+1-1=-13-1\ \vee\ n+1-1=13-1\\\\n=-14

n+2=12+2=14

7 0
3 years ago
Solve for x <br> What kind of angle <br> Substitute back in
inna [77]
These 2 angles are supplementary so we have
x+ 88 + x + 108 = 180
2x + 196 = 180
2c = -16
x = -8

the 2 angles are  -8+88 and -8+108

that is  80 and 100.
8 0
3 years ago
Plz help!!!! Geometry
never [62]

The little lines inside the two angles mean they are the same.

The 3 inside angles of a triangle equal 180 degrees.

One angle is 146 , so the other two need to equal 180-146 = 34 total.

34/ 2 = 17

Both angle 1 and angle 2 are 17 degrees each.

8 0
2 years ago
Read 2 more answers
(1,2)(5,8) point slope form
Ainat [17]

9514 1404 393

Answer:

  y -2 = 3/2(x -1)

Step-by-step explanation:

The slope formula tells you the slope:

  m = (y2 -y1)/(x2 -x1)

  m = (8 -2)/(5 -1) = 6/4 = 3/2

Using the first point in the point-slope form ...

  y -k = m(x -h) . . . . . line through (h, k) with slope m

  y -2 = 3/2(x -1)

3 0
2 years ago
PLEASE HELP!! NO LINKS!!
podryga [215]

Answer:

i think it is 3

Step-by-step explanation:

i drawed a circle and put it into sections

then i saw that to get the 40 degree angle i have to divide it for times to make 8 parts

then i did 12 divided by 4 because divide the circle four time

when i did 12/4 i got 3

and if i am correct

thats the answer

5 0
2 years ago
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