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julia-pushkina [17]

3 years ago

5

What is the final velocity of a runner who is accelerating at 2 feet per second squared for 3 seconds with an initial velocity o

f 4 feet per second

1 answer:

Tatiana [17]3 years ago

3 0

<span>a= 2 ft/s^2 t=3 s vi=4 ft/s vf=? One can use the kinematic equation: vf=vi+at vf=(4 ft/s)+(2 ft/s^2)(3 s)= (4 ft/s)+(6 ft/s)=10 ft/s</span>

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Please answer this ASAP

valkas [14]

Answer:

x = 2

Step-by-step explanation:

First, let's write out our equation:

$2x-4=6-3x$

I want to isolate x on one side, so first, I'll add 4 to both sides to remove the -4 from next to 2x:

$2x-4+4=6-3x+4\\2x=-3x + 10$

Notice that I combined like terms with the -4 and 4 (to get 0) and the 6 and 4 on the right side (to get 10). Next, I'll add 3x to both sides:

$2x + 3x = -3x + 3x + 10$

And then I'll add like terms:

$5x=10$

Now, all we have to do is divide both sides by 5:

$5x/5=10/5\\x=2$

And there's our answer. Hopefully that's helpful! :)

6 0

2 years ago

Mrs. Spect lost 1.25 pounds last week. She lost 2 pounds two

kenny6666 [7]

Answer:

On average she looses 1.33 pounds per week

Step-by-step explanation:

3/4=0.75

1.25+2+0.75=4 -> total weight loss

There are 3 weeks in total.

4/3=1.33

5 0

2 years ago

Can you tell me the answer it's my birthday today

ExtremeBDS [4]

Happy birthday, and the answer would be 3m(squared). The formula is LxH/2.

3 0

3 years ago

You invest $15,000 in a savings account with an annual interest rate of 2.5% in

almond37 [142]

Answer:

$\$16,990.62$

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=5\ years\\ P=\$15,000\\ r=2.5\%=2.5/100=0.025\\n=4$

substitute in the formula above

$A=15,000(1+\frac{0.025}{4})^{4*5}$

$A=15,000(1.00625)^{20}$

$A=\$16,990.62$

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3 years ago

A compact disc has an approximate Radius of 2 3/8 inches, what is the approximate area of a CD

professor190 [17]

Answer:

A≈12.57

r Radius 2

Step-by-step explanation:

6 0

3 years ago