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Colt1911 [192]
3 years ago
8

8. Stephanie is a very good soccer player. She can kick a soccer ball with an initial velocity of 21.3 m/sec. The function that

represents the height of the ball with respect to time is ℎ = −4.92 + 21.3. About how many seconds will it take for the ball to hit the ground?
Mathematics
1 answer:
Ad libitum [116K]3 years ago
5 0
The answer to your question is 16.38
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In cos(0.3), what unit would 0.3 be? Is it radians? Also if you were to solve it, would the answer be in radians as well? Please
neonofarm [45]

Answer:

22

Step-by-step explanation:

7 0
3 years ago
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The ratio of boys to girls in a class is 2 to 3. If there are 4 boys in the class, how many girls are there?
WARRIOR [948]

Answer:

Step-by-step explanation:

Firstly, we can simplify the ratio of boys to girls to  

1

:

2

.

Then, to find out how many students each ratio represents, we add up  

1

and  

2

to get  

3

(

1

+

2

=

3

).

By dividing  

3

by the number of students, we can find how many students ONE ratio represents:  

24

3

=

8

.

So ONE ratio is equal to  

8

boys. Since our simplified ratio of boys to girls is  

1

:

2

already, we do not have to do further multiplying - the number of boys is simply  

8

.

For the girls, simply multiply  

2

by  

8

to get  

16

.

Check:  

8

 

boys

 

+

18

 

girls

=

24

 

students

.

5 0
3 years ago
The steps to derive the quadratic formula are shown below:
insens350 [35]

Answer:

b)

x^{2} +\frac{b}{a} x+(\frac{b}{2 a} )^{2} = \frac{-c}{a} + (\frac{b}{2 a}) ^{2}

Step-by-step explanation:

<u>Step(i)</u>:-

Given quadratic equation ax² + bx + c = 0

<u>step(ii)</u>:-

ax² + bx = -c

<u>Step(iii):</u>-

Dividing 'a' on both sides , we get

\frac{ax^{2} +bx }{a} = \frac{-c}{a}

x^{2} + \frac{bx}{a}  = \frac{-c}{a}

<u><em>Step(iv)</em></u>:-

Adding  (\frac{b}{2 a} )^{2} on both sides , we get

x^{2} +\frac{b}{a} x+(\frac{b}{2 a} )^{2} = \frac{-c}{a} + (\frac{b}{2 a}) ^{2}

8 0
4 years ago
All solid objects conduct heat although some are better conductors than others in this sentence what's part of speech does the w
mestny [16]
What solid objects conduct here although some are better conductors and others in the sentence what’s the part of the speech does the world although mean?

I got you :) The answer is an Adjective ! you could also search up what these words mean to help you find your answer but i already told you it’s an adjective lol have a great day
4 0
3 years ago
Write the equation of the line that passes through (7,-4) and (-1,2) in slope-intercept form
s2008m [1.1K]
2-(-4)
--------= 6
-1-7 ---= 3/4
8
y=3/4x
-4=3/4 (7)+b
-4=21/4+b
-4-21/4= -37/4
21/4-21/4=0
y=3/4x-37/4
5 0
3 years ago
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