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3 years ago

13 POINTS Identify the natural number that is closest to7–√. A. 2 B.3 C.7 D.4

Mathematics

1 answer:

Stells [14]3 years ago

6 0

I think it’s A sorry if I’m wrong had someone else to help answer it

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Oliver hits a baseball at 3 feet above the ground with an initial speed of 135ft/sec at an angle of 20 degrees with the horizont

Serhud [2]

Answer:

Option B) the ball lands in front of the wall

Explanation:

1. Find the vertical and horizontal components of the initial velocity

a) Horizontal component:

$v_{0,x}=v_0\times cos(20\º)=135ft/s\times cos(20\º)=126.86ft/s$

b) Vertical component:

$v_{0,y}=v_0\times sin(20\º)=135ft/s\times sin(20\º)=46.17ft/s$

2. Find the time when the ball runs 380 feet horizontally:

$x=v_{0,x}\times t\\\\380ft=126.86ft/s\times t$

$t= (380ft)/(126.86ft/s)=2.995s\approx 3.0s$

3. Find the height of the ball when the time is 3.0s

$y=y_0+v_{0,y}\times t-gt^2/2$

y₀ = 3 ft
g ≈ 32.174 ft/s²

$y=3ft+46.17ft/s\times 3.0s-32.174ft/s^2\times (3.0s)^2/2$

$y=-3.3ft$

This result means that the ball does not reach the wall because it has fallen to the ground (when y = 0) before 3.0s.

5 0

3 years ago

An angle measures 84º more than the measure of its supplementary angle. What is the

kondaur [170]

Answer:

48 and 132

Step-by-step explanation:

x + (x + 84) = 180

2x + 84 = 180

-84 -84

2x = 96

96/2 = 48

6 0

3 years ago

Help me find the answer?

dmitriy555 [2]

Area is radius *radius * pi
4 cm*4cm * pi
16 pi cm^2

3 0

3 years ago

Which is equivalent to log2^n=4?

Darya [45]

Answer:

Step-by-step explanation:

6 0

3 years ago

Elena has 12 pieces of banana bread. She gives an equal amount of banana bread to five friends. How many pieces of banana bread

lina2011 [118]

Since Elena has 12 bananas and 5 friends we divide 12 by 5 and we will get 2.4 , 2.4 in mixed fraction form is 2 and 2/5.

Thus Elena gives 2 and 2/5 banana bread to his friends.

Hope this answer will be a good help for you.

4 0

4 years ago