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alina1380 [7]
3 years ago
10

Please help me, will mark you brainly!!! Thank you if u do

Mathematics
1 answer:
aleksklad [387]3 years ago
5 0

Answer:

1 second

Step-by-step explanation:

Using -b/2a I can get the maximum height of the ball. Assuming that there is no outside forces, there should be an equal time of going up and coming down, so if max height is at 1/2 seconds, then it should take 1 full second for the ball to hit the ground.

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Distribute a negative -7.1h-(-2k-1)
Andrew [12]

Answer:

<h2>=-7.1h+2k+1</h2>

Step-by-step explanation:

-7.1h-(-2k-1)\\-\left(-2k-1\right):\quad 2k+1\\=-7.1h+2k+1

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What is the equation?
Illusion [34]

Answer:

y=22x

Step-by-step explanation:

If x=1 and y=22 then y=22x

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Use algebraic rules of equations to predict the solution to the system of equations. Include all of your work for full credit.
dolphi86 [110]
X+2y=10
x=10-2y

6y=-3(10-2y)+30
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What is the answer to The sum of 2 numbers is 19 and their difference is 3? And thank you brainly for helping. I need the answer
saul85 [17]

Answer:

11 and 8

Step-by-step explanation:

11+8=19

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6 0
3 years ago
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If anyone knows the answer to these can u please help? thank you! :)
Dennis_Churaev [7]

Answers:

  • A) Ray QS or Ray QR
  • B)  Line segment QS or SQ
  • C)  Plane QSR
  • D)  Line QS or RQ

=======================================================

Explanation:

Part A)

When naming a ray, always start at the endpoint. This is the first letter and we'll start with point Q.

The second letter is the point that is on the ray where the ray aims at. We have two choices S and R as they are both on the same ray. That's why we can name this Ray QS and Ray QR.

--------------------

Part B)

A segment is named by its endpoints. The order of the endpoints doesn't matter so that's why segment QS is the same as segment SQ. To me, it seems more natural to read from left to right, so QS seems better fitting (again the order doesn't matter).

--------------------

Part C)

When forming a plane, you need 3 noncollinear points. The term "collinear" means the points all fall on the same line. So these three points cannot all fall on the same straight line. In other words, we must be able to form a triangle of some sort.

So that's how we get the name "Plane QSR". The order of the letters doesn't matter.

--------------------

Part D)

To name a line, we just need to pick two points from it. Any two will do. The order doesn't matter. So that's how we get Line QS and Line RQ as two aliases for this same line. It turns out that there are 6 different ways to name this line.

  1. Line QR
  2. Line QS
  3. Line RQ
  4. Line RS
  5. Line SQ
  6. Line SR
4 0
2 years ago
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