All categories

3 years ago

Anyone know how to do 5c???? Please help!!!!!

Mathematics

1 answer:

nignag [31]3 years ago

8 0

Answer:

71° F

Step-by-step explanation:

Consider the rational part of f(t)

$\frac{40t^3}{t^3+100}$ ( divide numerator and denominator by t³

= $\frac{40}{1+\frac{100}{t^3} }$

As t → infinity then $\frac{100}{t^3}$ → 0 , the expression simplifies to

$\frac{40}{1+0}$ = $\frac{40}{1}$ = 40

Thus after driving for a long time

f(t) = 31 + 40 = 71° F

You might be interested in

How many groups of 1 2/3 are in 4 1/3

Olegator [25]

Answer:

2. can not be 3 bc it would 5

Step-by-step explanation:

3 0

1 year ago

Is 2 miles greater than or less than 3,333 yards

Lelu [443]

Greater! because 3,333 yards is about 1.8 miles.

4 0

2 years ago

Read 2 more answers

a person invest in 9000 in a bank. the bank pays 5% interest compounded semi annually. to the nearest tenth of a year, how long

QveST [7]

Answer:

10.1 years.

Step-by-step explanation:

It is given that,

Principal = 9000

Rate of interest = 5%

No. of times interest compounded = 2 times in an year

Amount after certain time = 14800

The formula for amount:

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

where, P is principal, r is rate of interest, n is no. of times interest compounded in an year and t is time in years.

Substitute the given values in the above formula.

$14800=9000(1+\frac{0.05}{2})^{2t}$

$\frac{14800}{9000}=(1+0.025)^{2t}$

$1.644=(1.025)^{2t}$

Taking log both sides.

$\log(1.644)=\log(1.025)^{2t}$

$\log(1.644)=2t\log(1.025)$ $[\because \log a^b=b\log a]$

$\frac{\log(1.644)}{2\log(1.025)}=t$

$t=10.066$

$t=10.1$

Therefore, the required time is 10.1 years.

3 0

3 years ago

A supplies box contains 3 red crayons, 2 green crayons, and 6 blue crayons. If we choose a crayon, then another crayon without p

wel

Answer: 3/11 & 6/10

Step-by-Step explanation:

there are 11 crayons, 3 of which are red so the chance of picking a red one is 3 out of 11. now that you have taken out a crayon you take the original number and take away 1

11 - 1 = 10

so the chance of taking a blue canyon out is 6/10.

these events are dependent because if you didn't take the first crayon out of the supply box the answer would be 6/11 instead of the 6/10 we have

4 0

2 years ago

70 is 40% of what number? ________ 16 is 25% of what number? ________ 18 is what percent of 60? ________ 12 is what percent of 9

nordsb [41]

Answer:

I can tell you the first one and you can figure it out from there. 70 is 40% persent of what number? Well, we can chop 40% to 20% and chop 70 in half and we get 35. So 35 = 20% So we multiply 35 by five, and get 175. So 70 is 40% of 175.

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers