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Dima020 [189]
3 years ago
12

Question 3 options:

Mathematics
1 answer:
melomori [17]3 years ago
5 0

The height of an object can be represented as a function of time.

It takes the rocket 25 seconds to hit the ground

The height function is given as:

\mathbf{h(t) = 400t - 16t^2}

When the rocket hits the ground, we have:

h(t) = 0

So, the height function becomes

\mathbf{ 400t - 16t^2 = 0}

Rewrite as:

\mathbf{ 16t^2 = 400t}

Divide both sides by 16t

\mathbf{ t = 25}

Hence, it takes the rocket 25 seconds to hit the ground

Read more about height functions at:

brainly.com/question/22573423

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Select the correct answer.
Solnce55 [7]

Answer: the answer would be 1/8

Step-by-step explanation:

in decimal form it would be 0.125 so the answer is 1/8

hope this helps.

4 0
3 years ago
Read 2 more answers
Can someone please help I tried to attempt it but it wasn’t working for me
kakasveta [241]

b. It depends on the value you assume for the power line voltage. If you assume it is 120 volts, then the ratio to battery voltage is

... (120 volts)/(1.2 volts) = 100

Power line voltage is 100 times as large as battery voltage.

_____

Please be aware of some difficulties in this question.

1. Power line voltage, even if it is "120 volts" varies over time from -170 V to +170 V, so is not really comparable to a battery's voltage, which is steady at 1.2 V.

2. The terminology "times larger" is ambiguous. When we answer the question, "how much larger is <em>a</em> than <em>b</em>," we give the response in terms of the difference a-b. Thus, if <em>a</em> is 2 times <em>larger</em> than <em>b</em>, we might be talking about the <em>difference</em> being twice the value of <em>b</em>. It is preferable to say "times as large as."

5 0
3 years ago
Use the Pythagorean theorem to find the distance between the two points ANB round your answer to the nearest hundredth
jek_recluse [69]

Answer:

5.39 units

Step-by-step explanation:

Pythagorean theorem: a^{2} + b^{2} = c^{2}

Let point (-2,1) be C

Line segment AC would be 2 units long.

Line segment BC would be 5 units long.

Insert the length of the line segments in to the Pythagorean theorem

2^{2} + 5^{2}

4 + 25 = 29

\sqrt{29} ≅ 5.385

6 0
3 years ago
Which is true of a line?
slamgirl [31]

Answer:

A line is one-dimensional

Step-by-step explanation:

In its simplest form: a line describes one dimension, a plane describes two dimensions, and a cube describes three dimensions.

5 0
3 years ago
Read 2 more answers
Help explAin &amp; answer
ad-work [718]
Hello,

Sorry, i don't know the theorem in English

"Théorème des angles extérieurs :
la mesure en degré d’un angle extérieur est égale à la moitié de la différence des arcs interceptés par ses côtés."
Here

2x+15=1/2(10x+20-80)
==>4x+30=10x-60
==>6x=30+60
==>6x=90
==>x=15 °

3 0
4 years ago
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