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4 years ago

7

A ball's position, in meters, as it travels every second is represented by the position function s(t) = 4.9t^2+ 550. What is the

velocity of the ball after 3 seconds?
I think the answer is -20.6 ft./sec. Just looking for confirmation.

1 answer:

Drupady [299]4 years ago

4 0

Yes it is -20.6ft./sec

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An account earns simple interest.<br><br> $5200 at 7.36% for 54 months

vovikov84 [41]

A = P(1 +rt) where A is the total amount(principal and interest), r is the rate, and t is the time invested.

A = 5200[1 + .0736(4.5)]
A = 6922.24

note we had to change the rate to a decimal by dividing by 100
Also 54 months is equal to 4.5 years...you enter time in years.

6 0

3 years ago

The perimeter of a rectangle is 200 yards. What are the dimensions of the rectangle if the length is 60 yards more than the wid

puteri [66]

Answer:

L=80

W=20

Step-by-step explanation:

Perimeter = 2×L+2×w

L=w+60

Perimeter - 2×60 = 4×w

200-120 = 80

80/4= w = 20

L=w+60 = 80

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3 years ago

Enter the expression using exponents. 11 × 11 × 11 × 11 × 11 =

Alla [95]

Answer:

the answer should be $11^{5}$ or 11^5

Explanation:

Since there are five 11 in the equation, the answer should be $11^{5}$ or 11^5

You shouldn't write 161051 as the answer because it is NOT a exponent.

6 0

3 years ago

A recipe uses 1 cup of sugar to make 6 cookies. If you want to make 30 cookies, how much sugar will you need? Use cups as your l

sergij07 [2.7K]

Answer:

the answer is 5 cups

Step-by-step explanation:

let x rep a cup of sugar

and y rep a cookie

and k be constant

x/kx=6y/30y

k=5

8 0

3 years ago

Determine (a) the slope of the line parallel to the line whose slope is m=2 and (b) the slope of the line perpendicular to the l

kotykmax [81]

Answer:

(b) $\displaystyle -\frac{1}{2} = m$

(a) $\displaystyle 2 = m$

Step-by-step explanation:

Perpendicular Lines have OPPOSITE MULTIPLICATIVE INVERSE <em>RATE OF CHANGES</em> [<em>SLOPES</em>], whereas Parallel Lines have SIMILAR <em>RATE OF CHANGES</em> [SLOPES].

I am joyous to assist you anytime.

7 0

3 years ago