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Mathematics 15 Online
OpenStudy (anonymous):

NEED HELP ASAP I WILL FAN AND GIVE A MEDAL TO ANYONE WHO HELPS>

OpenStudy (mathmale):

Would you please start off by posting the question you want to discuss, and ditch the "fan and medal" part of your post? It'd save time.

OpenStudy (anonymous):

1. The distance traveled by an object can be modeled by the equation d = ut + 0.5at2 where d = distance, u = initial velocity, t = time, and a = acceleration. Solve this formula for a. Show all steps in your work. d = ut + 0.5at2 d = ut + 0.5at^2 d - ut = 0.5at^2 A=2d-ut/t^2 . is this right?

OpenStudy (anonymous):

@mathmale

OpenStudy (cggurumanjunath):

:)

OpenStudy (anonymous):

Am i right

OpenStudy (cggurumanjunath):

2(d-ut)/t^2= a

OpenStudy (cggurumanjunath):

yes ! u are .

OpenStudy (anonymous):

i have 4 more that i did on my own, can you check them?

OpenStudy (cggurumanjunath):

sure !

OpenStudy (cggurumanjunath):

post them right away here !

OpenStudy (anonymous):

2. The distance traveled by a falling object is given by the formula d = 0.5gt2 where d = distance, g = the force of gravity, and t = time. Solve this equation for g, and use your formula to determine the force of gravity if a baseball takes 10 seconds to hit the ground after being dropped from a height of 490 feet. Show all steps in your work. d=0.5gt2 2dt2=g g=2(490)102=9.8

OpenStudy (cggurumanjunath):

2d/t^2

OpenStudy (cggurumanjunath):

and not 2dt^2

OpenStudy (anonymous):

thank you

OpenStudy (anonymous):

so my whole thing should be just 2d/t^2

OpenStudy (cggurumanjunath):

:)

OpenStudy (cggurumanjunath):

yes

OpenStudy (anonymous):

Two boys want to use a seesaw and they need to move the seesaw so that their weights will balance out. The formula is given by w1 • d1 = w2 • d2 where w1 = weight of the first boy, d1 = distance of the first boy from the fulcrum, w2 = weight of the second boy, and d2 = distance of the second boy from the fulcrum. Rewrite the formula to solve for d2. Show all steps in your work .w1*d1=w2*d2 w2*d2/w2 = (w1*d1)/w2 d2 = w1*d1/w2

OpenStudy (anonymous):

@CGGURUMANJUNATH

OpenStudy (anonymous):

Marcie wants to enclose her yard with a fence. Her yard is in the shape of a triangle attached to a rectangle.The area of this figure can be found by the formula A = (wh) + 0.5(bh). If Marcie wants the total area to be larger than a specified value, she can use the formula A > (wh)+ 0.5(bh). Rewrite this formula to solve for b. Show all steps in your work.A - (wh) > 0.5(bh) A - (wh) / 0.5h > 0.5(bh) / 0.5h A - (wh) / 0.5h > b or b < A -(wh) / 0.5h a−wh÷0.5h=b

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