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Oliga [24]
2 years ago
9

A ball is thrown upwards and it’s height h m,at time t s,is given by h=7t-4.9t2.How long does the ball spend more than 1.5m abov

e ground?
Mathematics
1 answer:
Allushta [10]2 years ago
4 0

Answer:  From what you wrote the I think the ball is drop

At time 0 you are 7 meters above ground

You basically just need to solve for

1.5 =7t-4.9t^2

by rearrange the equation you get

4.9t^2-7t+1.5=0

by using Quadratic Formula

t=1.166s

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What is the midpoint of the line segment with endpoints (1,-6) and (-3,4)?
kirill115 [55]

Answer:

(-1,-1)

Step-by-step explanation:

To find the x coordinate of the midpoint, add the x coordinates of the endpoint and divide by 2

(1+-3)/2 = -2/2 = -1

To find the y coordinate of the midpoint, add the y coordinates of the endpoint and divide by 2

(-6+4)/2 = -2/2 = -1

(-1,-1)

8 0
2 years ago
If x = 6, what is 5x + 6 equal to?
pickupchik [31]

Answer: 5x6=30 30+6=36 answer is 36

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
-2x + 7 < 23 which graph ?
Ilya [14]

Answer:

The red one/bottom one. x>-8

Step-by-step explanation:

Subtract 7 giving you 16. Divide by negative 2 which gives you -8, but since your dividing by a negative you have to flip the sign. The Answer is x>-8. The Sign points which way you have to shade, the answer is which point you shade at, and the opened circle means that it is NOT equal to that answer but it is bigger. Closed circle if it is equal to. ;)

6 0
3 years ago
Colin invests £11180 into his bank account. He receives 5.4% per year simple interest. How much will Colin have after 6 years? G
Goryan [66]

Answer:

£ 14,802.32 total investment value.

Step-by-step explanation:

11180 x 0.054^1 = 603.72 interest  yr1

603.72 x 6 = 3622.32 interest yr 6

3622.32 + 11180 = 14802.32 = (interest + Initial) = total

5 0
2 years ago
Lois made a dish with 6 1/2 cups of pasta. One serving of the pasta is 0.2 cups. How many servings of pasta were in the dish Loi
vitfil [10]
Do 6 1/2 divided by 0.2 and you get 32.5 on a calculator. so im guessing A would be the answer sense its close to what I got on the calculator.
3 0
3 years ago
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