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guajiro [1.7K]
3 years ago
12

A triangle has two sides of lengths 7 and 12. What value could the length of the third side be? Check all that apply.

Mathematics
2 answers:
Reil [10]3 years ago
7 0

17,7,9,11 are the answers for apex.


Ulleksa [173]3 years ago
6 0
17 11 9 and 7

Remember that the third side must be greater than 5 and less than 19.
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Step-by-step explanation:

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PLEASE HELP ASAP!!I WILL GIVE BRAINLIEST AND 5 STARS AND HEART AND PROFILE COMMENT (4 QUESTIONS)!!!!
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<span>Identify the corresponding word problem given the equation: x + 5 = 15
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</span><span>Identify the corresponding word problem given the inequality: x ≤ 4.50
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</span><span>Identify the corresponding word problem given the equation: x + 12.50 = 55.75
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3 years ago
Please help me out guys. The photo will show you what to do. 50 points cause I need it done fast
Nonamiya [84]

Answer:

a) starting height: 5.5 ft

b) hang time: 5.562 seconds

c) maximum height: 126.5 ft

d) time to maximum height: 2.75 seconds

Step-by-step explanation:

a) The starting height is the height at t=0.

h(0) = -16·0 +88·0 +5.5

h(0) = 5.5

The starting height is 5.5 feet.

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b) The ball is in the air between t=0 and the non-zero time when h(t) = 0. We can find the latter by solving ...

-16t^2 + 8t +5.5 = 0

t^2 -(11/2)t = 5.5/16 . . . . . subtract 5.5, then divide by -16

t^2 -(11/2)t +(11/4)^2 = (5.5/16) +(11/4)^2 . . . . complete the square

(t -11/4)^2 = 126.5/16 . . . . . . . . . . . . . . . . . . . . call this [eq1] for later use

t -11/4 = √7.90625

t = 2.75 +√7.90625 ≈ 5.562

The ball will be in the air about 5.562 seconds.

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c) If we multiply [eq1] above by -16 and add the constant on the right, we get the vertex form of the height equation:

h(t) = -16(t -11/4) +126.5

The vertex at (2.75, 126.5) tells us ...

The maximum height of the ball is 126.5 feet.

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d) That same vertex point tells us ...

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Then the total area of the shaded region is 1320 m².

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