Miriam left chicago at 9: 00 am and headed to washington. the first 2 hour miriam averaged 70 mph. but after she decided to reach washington at 6: 00 pm, she increased her speed. what was her speed after increasing, if the distance between the cities is 700 miles.

80 mph

Step-by-step explanation:

step 1

Find the distance traveled by Miriam the first two hours

Remember that the distance is equal to the speed multiplied by the time

we have

so

9:00 AM +2 h=11:00 AM

At 11:00 am Miriam has travel 140 miles

step 2

Find out the speed

Remember that the speed is equal to divide the distance by the time

The time is equal to

6:00 PM-11:00 AM=7 h

the distance is equal to

700-140=560 miles

therefore

b i think

step-by-step explanation:

not really sure

a, b, c, d are correct.

step-by-step explanation:

we have g(x) = 3 and are required to find which option is a translation of g(x).

now, 'translation' is a transformation which means to shift the function in any direction and the general form of translation is g(x) + k, where k is any real number.

so, according to the options we see that all are correct as they satisfy the general form of translation.

also, it can be seen from the graph below that the function g(x) = 3 is shifted from its position in all the four options.