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Juliette [100K]
3 years ago
12

A stone dropped from a bridge strikes the water 2.2 s later. How high is the bridge above thewater

Mathematics
2 answers:
Whitepunk [10]3 years ago
8 0
Distance = ut+1/2gt^2
u is initial velocity g acceleration due to gravity t is time in seconds

u=0, t=2.2 g=9.8
distance = 0.5(9.8)(2.2)^2=23.716
vivado [14]3 years ago
3 0
Let the only force acting on the ball is the gravity (free-failing)  and the ball was initially stationary
vo = 0

s = vot + 1/2 gt^2

s = 1/2 x 10 x (2.2) ^2 = 24.2 m 
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Hey! I’m struggling and need help! Thank you!
Charra [1.4K]

Answer:

That would be obtuse

Step-by-step explanation:

Those are all more than 90 degrees!

4 0
2 years ago
Lissie set a goal to save $320 for a new computer. So far she has saved $112. What percent of her goal has Lissie saved so far?
Mariulka [41]
These are false. Tami will need to work 11 weeks to get to her goal. To find out this problem, first take out the 100 from the 320 which then gives you 220.  Then divide 220 by 20 which gives you 11. 1 is wrong because Tami does not have to work more than 21 weeks to get to her goal. 2 is also wrong because Tami does not need to save more that 11 weeks to get to her goal, she has to work 11 weeks only. 
7 0
3 years ago
Which statements about the graph of the function f(x) = 2x2 – x – 6 are true? Check all that apply.
lbvjy [14]
Hello,

1: dom f=R
2: img f =R
3: 2x²-x-6=2(x²-2x/4+1/46)-6-1/8=2(x-1/4)²-49/8
Vertex=(1/4,-49,8)

4: roots are -3/2 and 2
2(x-1/4)²-49/8=1/8[(4x-1)²-49]=1/8*(4x+6)(4x-8)

5:
From the vertex to ∞
[-1/4 , ∞)
7 0
3 years ago
PLZ HELP I WILL MARK BRAINIEST (26+4) divided by 6 = w
creativ13 [48]

Answer:

w = 5

Step-by-step explanation:

(26+4)=30, and 30/6=5, therefore, w = 5.

5 0
3 years ago
Read 2 more answers
Find the surface area. Round your answer to the nearest hundredth
Readme [11.4K]

Answer:  569.91\ ft^2

Step-by-step explanation:

From the given picture, the radius of the base of the cylinder = 5.5 ft.

The height of the cylinder = 5 ft.+6 ft.=11 ft.

We know that the surface area of a cylinder is given by :-

\text{Surface Area}=2\pi r (r+h)\\\\\Rightarrow\text{Surface Area}=2(3.14)(5.5)(5.5+11)\\\\\Rightarrow\text{Surface Area}=569.91\ ft^2

Hence, the surface area of the given cylinder = 569.91\ ft^2

6 0
3 years ago
Read 2 more answers
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