1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Law Incorporation [45]
3 years ago
7

PLEASE HELP 25PTS!! Select the correct answer from each drop-down menu.

Mathematics
1 answer:
lions [1.4K]3 years ago
7 0

Answer:

The quality control facility operates for 10 hours each day.

Step-by-step explanation:

The given function models the number of cars that are put through a quality control test each hour at a car production factory.

The given function is

c(t)= -t^2+8t+20

We need to find the number of hours does the quality control facility operate each day.

Rewrite the given function it factored form.

c(t)= -t^2+(10t-2t)+20

c(t)= (-t^2+10t)+(-2t+20)

Taking out the common factors from each parenthesis.

c(t)= -t(t-10)-2(t-10)

c(t)= (t-10)(-t-2)

c(t)=-(t-10)(t+2)

The factored form of given function is c(t)=-(t-10)(t+2).

Equate the function equal to 0 to find the x-intercept.

0=-(t-10)(t+2)

t-10=0\Rightarrow t=10

t+2=0\Rightarrow t=-2

Number of hours cannot be negative. So from t=0 to t=10 quality control facility operate the cars.

Therefore the quality control facility operates for 10 hours each day.

You might be interested in
Which of the following is a number that is used to describe how two random variables are related?
zubka84 [21]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
Tricia spends $4.89 on 3 snack packs.
lesantik [10]

Answer:

$1.63

Step-by-step explanation:

Divide 4.89 by 3

Answer: $1.63

Simple

Hope it helps ♥️♥️

5 0
2 years ago
Find the greatest common factor of 24xz^2 and 8yz?
julia-pushkina [17]

Answer:

Step-by-step explanation:

8z (3x^2 +y)

5 0
3 years ago
9 x 5<br> -<br> 9 im give brainlists
Alenkinab [10]

Answer:

9 x 5 - 9 = 36

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
1790.6204<br> 18.5376<br> what is the expanded notation?
Neporo4naja [7]

Answer:

1790.06204 = 1 × 1000 + 7 × 100 + 9 × 10 + 0.6204

18.5376= 1 × 10 + 8 + 0.5376

5 0
3 years ago
Other questions:
  • d. Noah earned n dollars over the summer. Mai earned $275, which is $45 more than Noah did. What's the answer?
    12·2 answers
  • Scientific notation for 0.0008
    7·2 answers
  • Round 630,379,982 to the nearest hundred thousand
    8·2 answers
  • Plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz help me​
    6·2 answers
  • Simplify (4x − 6) − (5x + 1). (1 point)
    14·1 answer
  • Dostaniecie 5 gwiazdek i serce a może nawet naj jak odpowiecie na następujące pytanie: wypisz pięć kolejnych różnic od 0
    10·1 answer
  • In 64.71, in which place is the 4?​
    9·2 answers
  • Write an equation of the line with a slope of -3/4 and y-intercept of -6
    12·2 answers
  • Mr. Brown collected two random samples of 100 students each, with the results listed below. Make an inference as to which type o
    6·1 answer
  • Answer all plss I need it !
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!