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3 years ago

Write down the temperature shown?

Mathematics

1 answer:

Pavel [41]3 years ago

5 0

It’s -3 degrees . Count forwards two times ....

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A baseball is hit into the air, and its height h in feet after t seconds is given by h(t)= -16t^2+128t+2. The height of the bas

tankabanditka [31]

Answer:

$\large \boxed{\sf \ \text{2 feet, 4 seconds, 258 feet } \ }$

Step-by-step explanation:

Hello,

To know the height of the baseball when it is hit we have to compute h(0), as t = 0 is when the baseball is hit into the air.

$h(0)=-16\cdot 0^2+128 \cdot 0+2=2$

So, the answer is <u>2 feet.</u>

<u />

h(x) is a parabola which can be written as $ax^2+bx+c$ , it means that the vertex is the point (-b/2a,h(-b/2a)).

The baseball reached its maximum height after

$\dfrac{-b}{2a}=\dfrac{-128}{-2*16}=\boxed{4 \text{ seconds}}$

And the maximum height of the baseball is h(4).

$h(0)=-16\cdot 4^2+128 \cdot 4+2=-256+512+2=\boxed{258 \ \text{feet}}$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

8 0

3 years ago

The proof that triangle ABC is congruent to triangle CDA is shown. given a AB is parallel to cd and BC is parallel to DE prove t

Tresset [83]

Answer:

D) SSS congruence theorem

Step-by-step explanation:

Edge 2021

3 0

2 years ago

A rectangle has a length two more than seven times the width. If the perimeter is 52 units, find the width and length.

motikmotik

Length- 19,19
Width- 14,14

I’m not so sure but I think that right

3 0

3 years ago

Stella wants to buy a remote control helicopter. The one she wants costs $120.

aalyn [17]

.45 * 120 = 54

.072 * 54 = 3.888

54 + 3.888 = 57.888= $57.89

5 0

1 year ago

Read 2 more answers

Your friend decides to flip a coin repeatedly to analyze whether the probability of a head on each flip is 1/2. He flips the coi

Phoenix [80]

Answer:

Step-by-step explanation:

Given that a friend flips a coin 10 times and observes head 7 times. So he concludes Probability of head =0.1

This is wrong because

i) Just making 10 trials and coming to conclusion is wrong. Trials should be large to get accurate estimate

ii) The way he threw the coin may be biased so differrent persons should flip and get results for larger trials

iii) External influences such as air, any other disturbance is not considered here.

To avoid all these sampling fluctuations number of trials should be increased with different situations and times.

6 0

3 years ago