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Mkey [24]
3 years ago
13

If a ball is thrown in the air with a velocity 50 ft/s, its height in feet t seconds later is given by y = 50t - 16t2. (Round yo

ur answers to one decimal place.)
Find the average velocity for the time period beginning when t = 2 and lasting 0.5 second.
Mathematics
1 answer:
Mandarinka [93]3 years ago
8 0
You wish to evaluate y at t= 2.0 and t=2.5. the average velocity over this interval will be 1/(0.5)*(v(2.5)-v(2.0))
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john invested $2000 that earn interest at 4% per annum compounded monthly. two year later the interest rate is 4.50% compounded
Ksju [112]

Answer:

\$2,369.11  

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  

Part 1)

t=2\ years\\ P=\$2,000\\ r=0.04\\n=12  

substitute in the formula above

A=2,000(1+\frac{0.04}{12})^{12*2}  

A=2,000(1.0033)^{24}  

A=\$2,166.29  

Part 2)

t=2\ years\\ P=\$2,166.29\\ r=0.045\\n=4  

substitute in the formula above

A=2,166.29(1+\frac{0.045}{4})^{4*2}  

A=2,166.29(1.01125)^{8}  

A=\$2,369.11  

5 0
3 years ago
If h = 9 units and r = 6 units, then what is the volume of the cone shown above?
Molodets [167]
Cone Volume = PI * radius^2 * height / 3Cone Volume = PI * 6^2 * 9 / 3 <span>Cone Volume = PI * 108
</span>Answer is D 108 PI cubic units
<span><span> </span> </span>
http://www.1728.org/volcone.htm



3 0
3 years ago
What number is multiplied 4 times to get 81
nataly862011 [7]
Your answer is 3

Why? Because 3^4 is 81

same as saying 3 x 3 x 3 x 3=81 :)
7 0
3 years ago
Read 2 more answers
Describe the process of changing a mixed number into an equivalent improper fraction.
natta225 [31]
Ex 1  3/2

2 x 1 +3          5
------------  =   -----  =  2.5
     2               2

first denominator times whatever the whole number is then add that to the nominator than you have an improper fraction

because 3/2 = 1.5 then plus the whole number which is 1.0 = 2.5
 
3 0
3 years ago
Read 2 more answers
22:33 in its simplest form
kati45 [8]
Get the greatest common factor. 
11
divide both numbers by gcf
22/11=2
33/11=3

Answer: 2:3
7 0
4 years ago
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