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Bess [88]
3 years ago
11

PLEASE HELP!!!!! !!!!!!!!!!!!

Mathematics
1 answer:
valina [46]3 years ago
3 0

Answer:

31.9secs

6,183.3m

Step-by-step explanation:

Given the equation that models the height expressed as;

h(t ) = -4.9t²+313t+269

At the the max g=height, the velocity is zero

dh/dt = 0

dh/dt = -9,8t+313

0 = -9.8t + 313

9.8t = 313

t = 313/9.8

t = 31.94secs

Hence it takes the rocket 31.9secs to reach the max height

Get the max height

Recall that h(t ) = -4.9t²+313t+269

h(31.9) = -4.9(31.9)²+313(31.9)+269

h(31.9) = -4,070.44+9,984.7+269

h(31.9) = 6,183.3m

Hence the maximum height reached is 6,183.3m

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Can someone help please
11Alexandr11 [23.1K]

Answer:

geometric

common ratio 2/3

Step-by-step explanation:

We know that the sequence is not arithmetic

3-2 =1

2-4/3 = 6/3 -4/3 = 2/3

The common difference is not the same

Now check geometric

The common ratio:

Take the second term over the first term

2/3

Now take the third term over the second term

4/3 ÷ 2

4/3 * 1/2 = 2/3

The common ratio is the same so the sequence is geometric with a common ratio of 2/3

6 0
3 years ago
A fast food restaurant sells burgers and fries.
natima [27]
Hello!

You first make two equations

Let x stand for the price of a burger
Let y stand for the price of fries

3x + 2y = 7.15
4x + 3y = 9.93

multiply the top equation by 3 and the bottom equation by 2

9x + 6y = 21.45
8x + 6y = 19.86

You can subtract the two equations

x = 1.59

Now you can put x into one of the original equations

3(1.59) + 2y = 7.15

Combine like terms

4.77 + 2y = 7.15

Subtract 4.77 from both sides

2y = 2.38

Divide both sides by 2

y = 1.19

The answers are a burger cost $1.59 and Fries cost $1.19

Hope this helps!
4 0
3 years ago
Find the area and perimeter of an isosceles trapezoid with legs 25cm and bases 16cm and 30cm
Varvara68 [4.7K]
<u>A=1/2h(b1+b2)</u>
= 1/2(h)(30+16)
<em>>how to find h<</em>
<em>>30-16= 14/2 = 7<</em>
<em>>25²-7² = 625-49 = 576<</em>
<em>>√576 = 24 .. h=24<</em>
= 1/2(24)(30+16)
= 12(46)
A = 552 cm²
<u>P= b+b+l+l</u>
= 30+16+25+25
P = 96 cm
4 0
4 years ago
Read 2 more answers
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sveticcg [70]

Answer:

Step-by-step explanation:

A way to make your grades go higher is by asking your teacher for extra credits. If you fail some quizzes ask your teacher to re-take it to get a better grade, another way is ask your teacher for assistance on assignments.

6 0
3 years ago
Please help !!!!!picture shown
NeX [460]
I seef(x)  between 0 to 1 is goes to xfinity but in the negative direction
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