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Alona [7]
2 years ago
8

Hello, I´m here because i need to learn how to solve these problem but i don´t understand this kind of trigonometry my teacher i

s trying to teach us and our teacher is too incompetent to help us kids who don´t understand it, he never even explained how anything works. So please, i need your help to solve these problems, and could you please help me understand how this kind of trigonometry works and how to solve it because that´s exactly what i need. Thank you.
Mathematics
1 answer:
mash [69]2 years ago
5 0
The photo won’t show up:(((
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A falling object travels a distance given by the formula d=3t+5t2, where d is measured in feet and t is measured in seconds. How
Romashka-Z-Leto [24]

Answer:

<em>4.52secs</em>

Step-by-step explanation:

Given the height of a falling object expressed as;

d=3t+5t^2

If the object travel 84 feet, we are to find the time t it takes to travel. On substituting;

84 = 3t+5t^2

3t+5t^2 - 84 = 0

t = -5±√25-4(3)(-84)/2(3)

t = -5±√25+1008/6

t = -5±32.14/6

t = -5+32.14/6

t = 27.14/6

<em>t = 4.52 secs</em>

<em>Hence it will take 4.52secs for the object to travel 84feet</em>

8 0
2 years ago
If the denominar is 25 what is the numrater
Svetllana [295]

Answer:

The answer is 12

Step-by-step explanation: Hope you got it

7 0
2 years ago
18. What is the least common denominator of the following<br> fractions? 3/10 and 1/4
Len [333]

Answer:

20

The denominators of 3 /10  and  1 /4  are 10  and  4.

The factors of  10  are  2 × 5  and  2 × 2

Therfore the LCD should have two 2's and one 5.

This means the answer is:

2 × 2 × 5 = <u>20</u>

I hope this helps :)

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3 years ago
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Answer:

yes they are

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2 years ago
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