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prohojiy [21]
4 years ago
5

Does the line 4y + 3x = -8 pass through the point (3, 2)

Mathematics
1 answer:
ivann1987 [24]4 years ago
4 0

Answer:

  No

Step-by-step explanation:

Put the values of the variables in the equation and do the arithmetic to see if it is true.

  x=3, y=2

  4y +3x = 4(2) +3(3) = 8 + 9 = 17 . . . . not equal to -8

The point is not on the line.

___

If you graph the equation of the line, you realize it doesn't even go through the first quadrant, so the point cannot possibly be on the line.

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Y decreased by 9is 8
olga55 [171]

Answer:

It's easy to figure it out. The equation we have is 8 = y - 9. We need to isolate y. Simply add 9 to each side of the equation to get this: 17 = y.

ANSWER: 17 = y

8 0
3 years ago
Where does the graph of y=2x2-x-3 cross as the x-axis?
tiny-mole [99]
This can be determined by finding the x-intercept. In doing so, we let y=0 to find the value of x.

y= 2x^2 -x -3
[0 = 2x^2 -x-3]÷2
0 = x^2 -1/2 x - 3/2

Complete the squares:

1/16 + 3/2 = x^2 - 1/2x + 1/16
25/16 = (x -1/4)^2
sqrt (25/16) = x - 1/4
+/- 5/4 = x - 1/4

Thus,
x = 1/4 + 5/4 = 3/2
x = 1/4 - 5/4 = -1

Thus, the graph crosses at x = 3/2 and x = -1.
6 0
4 years ago
What is the best estimate for the number of people in line at 7.A.M
Keith_Richards [23]

We have been given the equation

y=-5.131x^2+31.821x-3.333

It represents the number of people standing to catch a commuter train x hours after 5 A.M.

Now, in order to find the number of people in line at 7 a.m. , we need to substitute x= 2 in the above equation.

y(2)=-5.131(2)^2+31.821(2x)-3.333\\y(2)= 39.785 \approx 40

Therefore, the number of people in the line at 7 a.m. is 40

D id the correct option.

5 0
3 years ago
Write a story about elevation that this expression could represent: 56 + (-56)
Ostrovityanka [42]

The correct statement that represents the expression is:

  • An object moves towards the east (positive direction )at a distance of 56m and west (negative direction) at the same distance, the total displacement of the object is 0m

Given the expression 56 + (-56).

  • We can see that this is an inverse rule where a value and its negative are added together.

Let us assume the values are distance covered by an object.

The correct statement that represents the expression is:

  • An object moves towards the east (positive direction )at a distance of 56m and west (negative direction) at the same distance, the total displacement of the object is 0m

This show that  56 + (-56) = 56 - 56 = 0

Learn more on inverses here: brainly.com/question/17130744

7 0
2 years ago
the sum of 43.9 and a number is 49.65, as shown below l. what number should go in the box to complete the addition problem
torisob [31]
5.75 is the answer.
If you subtract 43.9 FROM 49.65, that's what you get.
7 0
3 years ago
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