Marta wants to have at least an average of 90% in her class. her grade is calculated by averaging her homework score and the scores from five exams. her homework grade and scores from the first four exams are given below 88%, 86%, 89%, 85%, 99% if all scores are weighted equally, what score does marta need on her final exam to get a 90% average? round to the nearest tenth if necessary

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

the answer is the option b

the range is all real numbers

step-by-step explanation:

we know that

the absolute value parent function is equal to

see the attached figure to better understand the problem

so

a. it is v-shaped > is true

b. the range is all real numbers > is not true

because the range is the > [0,∞)

all real numbers greater than or equal to zero

c. it goes through the origin > is true

d. the domain is all real numbers > is true

step-by-step explanation: