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Musya8 [376]
2 years ago
7

John went on a trip. 2 hours in he a 15 gallons of gas in her tank.7 hours into her trip she had 3 gallons left. Find the rate o

f change
Mathematics
1 answer:
maks197457 [2]2 years ago
5 0

Answer:

jjjjjjajjajajajhahahahajahajjaha

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A coordinate plane is used to track the movement of a ship. The ship moved from (8, - 4) to (11, 11) on the coordinate plane. Wh
Luba_88 [7]

Answer:

the ship moved 4 coordinates away from the current position

Step-by-step explanation:

because 8-4 is 4

8 0
2 years ago
Which of the following is not a possible number of solutions when solving a system of equations containing a quadratic and a lin
Kobotan [32]

Answer:

3

Step-by-step explanation:

We have a system with two equations, one equation is a quadratic function and the other equation is a linear function.

To solve this system we have to clear "y" in both equations, and then equal both equations, then we will have a quadratic function and equal it to zero:

ax^2+bx+c=0, a\neq 0

Then to resolve a quadratic equation we apply Bhaskara's formula:

x_{1}=\frac{-b+\sqrt{b^2-4ac} }{2a}

x_{2}=\frac{-b-\sqrt{b^2-4ac} }{2a}

It usually has two solutions.

But it could happen that \sqrt{b^2-4ac} then the equation doesn't have real solutions.

Or it could happen that there's only one solution, this happen when the linear equation touches the quadratic equation in one point.

And it's not possible to have more than 2 solutions. Then the answer ir 3.

For example:

In the three graphs the pink one is a quadratic function and the green one is a linear function.

In the first graph we can see that the linear function intersects the quadratic function in two points, then there are two solutions.

In the second graph we can see that the linear function intersects the quadratic function in only one point, then there is one solutions.

In the third graph we can see that the linear function doesn't intersect the quadratic function, then there aren't real solutions.

7 0
3 years ago
The Question is in the file below. (Khan Academy)
galben [10]
That little squaer angle means right angle or 90 degrees

the black line and the red line cross

therefor the oposte angles are eqal measure
7x=90+x
solve
minus x
6x=90
divide 6
x=15

x=15
5 0
3 years ago
How can i score best mark uee in 2019?
jolli1 [7]

Answer:

You need to study to do good on those exams bud.

8 0
2 years ago
Read 2 more answers
Plz help me! Well put brainliest
Alex777 [14]
It is the last one since you must multiply all the sides to get volume.

Plz give brainliest
3 0
2 years ago
Read 2 more answers
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