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
Talja [164]
3 years ago
7

If f (x) = - 9x + 8, then find f (-2)​

Mathematics
1 answer:
Katen [24]3 years ago
3 0

Answer:

26

Step-by-step explanation:

f(x) = -9x + 8

f(-2)

______________

When we have a function f(x), x can be plugged in with anything, when plugged, the equation the function f(x) is tied too will also have x replaced with the value.

Therefore, if f(x) equals f(-2), -9(-2) + 8

Multiply :

-9(-2) + 8

18 + 8

26

You might be interested in
Solve for x:<br><br> x + 3 = 8
artcher [175]
How generous
x+3=8
minus 3 both sides
x+3-3=8-3
x+0=5
x=5
5 0
3 years ago
Can I get help on this one
Vesnalui [34]
Use the app socraitc it will give you the answer fast
4 0
3 years ago
Read 2 more answers
A knife and fork cost €2.40.the knife costs two euros more than the fork how much is the fork
Greeley [361]

Answer:

f = € 0.20

k = € 2.20

Step-by-step explanation:

k + f = 2.40

k = 2 + f

(2 + f) + f = 2.40

2f = 2.40 - 2

2f = 0.40

f = € 0.20

k = 2 + 0.20 = € 2.20

8 0
3 years ago
Suppose management could improve the process by reducing the mean time required for an oil change (but keeping the standard devi
Alja [10]

This question is incomplete, the complete question is;

The owners of Spiffy Lube want to offer their customers a 10-minute guarantee on their standard oil change service. If the oil change takes longer than 10 minutes to complete, the customers is given a coupon for a free oil change at the next visit. Based on past history, the owners believe that the timer required to complete an oil change has a normal distribution with a mean of 8.6 minutes and a standard deviation of 1.2 minutes.

Suppose management could improve the process by reducing the mean time required for an oil change (but keeping the standard deviation the same). How much change in the mean service time would be required to allow for a 10-minute guarantee that gives a coupon to no more than 1 out of every 25 customers on average

Answer:

Required change in the mean service time is 7.8988

Step-by-step explanation:

Given the data in the question;

How much change in the mean service time would be required to allow for a 10-minute guarantee that gives a coupon to no more than 1 out of every 25 customers on average

let mean = μ

p( x > 10 ) ≤ (1/25)

p( x > 10 ) ≤ 0.4

p( x-μ / 1.2  > 10-μ / 1.2 ) ≤ 0.4

(10-μ / 1.2 ) ≤ 0.4

(10-μ / 1.2 ) ≥ q_{norm} ( 0.96 )

(10-μ / 1.2 ≥ 1.751

10-μ  = ≥ 1.751 × 1.2

10-μ  ≤ 2.1012

μ ≤ 10 - 2.1012

μ ≤ 7.8988

Therefore, required change in the mean service time is 7.8988

8 0
3 years ago
Please any one help me how can I calculate m
victus00 [196]

Step-by-step explanation:

..........................

6 0
3 years ago
Read 2 more answers
Other questions:
  • Write the equation in slope-intercept form show all your work<br> 3x + 7 = 9
    5·1 answer
  • Write four related facts. use pictures to show how the number sentences are related 1st grade
    6·1 answer
  • ben is making trail mix for 25 people. each person will get 1/8 pound of trial mix. how much trail mix does ben need to make it
    10·1 answer
  • A lake is stocked with 1,500 young trout. If the number of the original trout alive after x years is given by the function P(x)=
    7·1 answer
  • An arts academy requires there to be 4 teachers for every 84 students and 3 tutors for every 30 students. How many students does
    8·1 answer
  • MATH! Please help me. I will mark brainlist :)
    14·1 answer
  • Brainliest to whoever gets this CORRECT.
    9·1 answer
  • Select all that apply.<br><br> Which lines have a slope of -2?
    10·1 answer
  • A telephone pole were fixed 50m apart.how many poles were there in 26km??​
    11·1 answer
  • Help me anyone that great in math
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!