Aconsumer is trying to decide between two long»distance calling plans. the first one charges a flat rate of 10c per minute. whereas the second charges a flat rate of 99cfor calls up to 20 minutes in duration and thenloc for each additional minuteexceeding 20 (assume that calls lasting a noninteger number of minutes are charged proportionately to a whole-minute’scharge). suppose the consumer’s distribution of call duration is exponential with parameter. a. explain intuitively how the choice of calling plan should depend on what the expected call duration is. b. which plan is better if expected call duration is 10 minutes? 15 minutes? [hint: let h1(x) denote the cost for the first planwhen call duration is x minutes and let h2(x) be the cost function for the second plan. give expressions for these two costfunctions. and then determine the expected cost for each plan]

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

~

we have the parent function given by,

1. the function is translated 5 units to the left.

so, we get,   becomes

2. the function is translated 5 units to the right.

so, we get,   becomes

3. the function is translated 5 units upwards.

so, we get,   becomes

4. the function is translated 5 units downwards.

so, we get,   becomes

5. the function is reflected across x-axis.

so, we get,   becomes

6. the function is reflected across y-axis.

so, we get,   becomes .

step-by-step explanation:

mark brainliest.

answer: 12x^2+6x

step-by-step explanation:

6x does not equal 24x. hope it works!