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Ipatiy [6.2K]
3 years ago
14

PLEASEE HELP ON A TEST

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
3 0

Answer:

After t = 4 the rocket will hit the ground.

Step-by-step explanation:

We are given a parametric equation as x = 3t² and y = - 4t + 16.

If we assume that the x is a measure of horizontal distance, y is the measure of vertical distance and t is the time of travel of the rocket, then by making y = 0, we will get the time to hit the ground.

Hence, - 4t + 16 = 0

⇒ t = 4

Therefore, after t = 4 the rocket will hit the ground. (Answer)

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NEED THIS DONE SOON
Sati [7]

65Answer:

we can use sin to find the missing length

Step-by-step explanation:

The ratio states that sin of an angle=opposite/hypotenuse

sin(65)=x/6 since we know the angle and the hypotenuse we need to figure out the opposite side

sin(65)=0.906307...

0.906307=x/6

Multiply 6 on both sides to isolate x

The answer is 5.4378...

Rounded to the hundredth is 5.44

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3 years ago
A leak in a pool causes the height of the water to decrease by 0.25 feet before the leak is fixed. After the leak is fixed, the
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-4.75 = x + (-0.25)  well x=5

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3 0
3 years ago
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lubasha [3.4K]

Answer:

m\angle 1=155\degree

Step-by-step explanation:

The missing diagram is shown in the attachment.

We need to Examine Carmen’s rail plans to identify the measure of ∠1.

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From Carmen’s rail plans, the measure of \angle 1  corresponds to 155 degrees because the streets represented by lines V and W are parallel and t is a transversal.

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The photo has the answer!
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3 years ago
What is -0.8+1.4n=2+0.7n
Sergio [31]

Answer:

n=4

Step-by-step explanation:

To solve combine your like terms.

You can start by adding 0.8 to both sides and subtracting 0.7n from both sides.

-0.8+1.4n=2+0.7n\\1.4n=2.8+0.7n\\0.7n=2.8

Next, divide both sides by 0.7 to isolate for n.

0.7n=2.8\\n=4

6 0
3 years ago
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