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Afina-wow [57]
2 years ago
14

1. i’ll give you brainliest if u get this right

Mathematics
1 answer:
Allisa [31]2 years ago
6 0

Answer:

Step-by-step explanation:

34 and m=7

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The path of a football can be modelled by the equation, h=-10d2+120d , where h represents the height, in metres, of the football
Marta_Voda [28]

Answer:

12 m

Step-by-step explanation:

The path of a football has been modeled by the equation:

h= -10d^2+120d

where h represents the height and d represents the horizontal distance.

When the ball lands, it means that its height is back at 0 metres. This means that we have to find horizontal distance, d, when height, h, is 0.

=> 0= -10d^2+120d

=> 10d^2 - 120d = 0

d(10d - 120) = 0

∴ d = 0 m

and

10d - 120 = 0

=> d = 120 / 10 = 12 m

There are two solutions for d when h = 0 m.

The first solution (d = 0 m) is a case where the ball has not been thrown at all. This means the ball has not moved away from the football player and it is still on the ground.

The second solution is the answer to our problem (d = 12 m). The ball lands at a horizontal distance of 12 m

3 0
3 years ago
We know the following about the numbers a, b and c:
labwork [276]

Step-by-step explanation:

(a + b)² = 9

(b + c)² = 25

(a + c)² = 81

Taking the square root:

a + b = ±3

b + c = ±5

a + c = ±9

By adding these three equations together and dividing both sides by 2, we get the value of a + b + c.

Possible combinations for a + b + c such that the sum is greater than or equal to 1 are:

a + b + c = (-3 + 5 + 9)/2 = 11/2

a + b + c = (3 − 5 + 9)/2 = 7/2

a + b + c = (3 + 5 + 9)/2 = 17/2

3 0
2 years ago
Can some one help me with this too
Ivan

Answer:Sure thing, But what do you need help with? And whatever you need help with maybe just maybe I will help you with whatever you need help with.

Step-by-step explanation:

8 0
2 years ago
Find the distance between points P(5, 1) and Q(3, 4) to the nearest tenth.
DedPeter [7]
Using distance formula =√<span>(5-3)sq+(1-4)sq
=</span>√4+9
=√13
7 0
3 years ago
Read 2 more answers
PLS HELP ASAP WILL GIVE BRAINLIEST
mariarad [96]

Answer:

c

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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