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DochEvi [55]
2 years ago
13

Please help, I can't figure this out.

Mathematics
1 answer:
nataly862011 [7]2 years ago
4 0

Answer:

5 seconds

Step-by-step explanation:

When the rocket is on the ground, then h = 0 , that is

- 6t² + 30t = 0 ← factor out - 6t from each term

- 6t(t - 5) = 0

Equate each factor to zero and solve for t

- 6t = 0 ⇒ t = 0 ← when rocket is launched

t - 5 = 0 ⇒ t = 5 ← time when rocket returns to ground

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vitfil [10]
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Step 2. 14-11 = 3
Answer: 8x + 3
4 0
3 years ago
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Alex73 [517]

Answer:

I think is A

Step-by-step explanation:

-7x -13 ≥ 8

+13 +13

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Answer: x ≤ -3

5 0
2 years ago
6) find HJ<br> 8)find IK
Anastasy [175]

Answer:

HJ = 17

IK = 30

Step-by-step explanation:

to find HI :

GH : 2

HI : ?

IJ : 12

GI : 7

HI = GI - GH

HI = 7- 2

HI = 5

HI + IJ = HJ

5 + 12 = HJ

17 = HJ

To find IK

IJ = ?

JK = 12

KL = ?

IL = 49

JL = 31

To find IK we need to find KL and IJ

KL = JL - JK

KL = 31 - 12

KL = 19

IJ = IL - (JK + KL)

IJ = 49 - 31

IJ = 18

IK = IJ + JK

IK = 18 + 12

IK = 30

4 0
3 years ago
The surface area of a square pyramid is 136 square inches. The base is 4 inches. What is the slant area
zheka24 [161]
34 inches. How you work it out would be base x height. This means to work out the height, you divide the total area by the base. 136/4 is 34
4 0
3 years ago
I need to know the equation?
liberstina [14]
$55.00+$8.50=x x=$123
6 0
2 years ago
Read 2 more answers
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