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
Nata [24]
3 years ago
14

Find f(4) when f(x)=4x^2 - 2 x - 4

Mathematics
1 answer:
prisoha [69]3 years ago
8 0

Answer:

52

Step-by-step explanation:

f(x)=4x^2-2x-4

f(4)=4(4)^2-2(4)-4 (I replaced x with (4) since we are to find f(4).)

f(4)=4(16)-2(4)-4    (By the order of operations, we take care of the exponents before whatever else we have here.)

f(4)=64-8-4           (By the order of operations, we take care of the multiplication as we see if left to right.)

f(4)=56-4              (By the order of operations, we perform addition/subtraction as we see it left to right.)

f(4)=52                 (This completes the simplification.)

We could have also put this in our calculator as:

4(4)^2 -  2(4)  -  4

This would have returned 52.

You might be interested in
Your business borrowed 10 bitcoins
Leno4ka [110]

Answer:

OK

Step-by-step explanation:

6 0
4 years ago
What is the slope of the line joining (8, 1) and (24, 9)?
xxMikexx [17]
A that’s what I got
4 0
4 years ago
The value 0.01 is the maximum safe level of some naturally occurring lethal pollutant in drinking water for human consumption. Y
PilotLPTM [1.2K]

Question Completion:

Suppose that

H subscript o : mu less or equal than 0.01

H subscript alpha : mu greater than 0.01

The value 0.01 is the maximum safe level of some naturally occurring lethal pollutant in drinking water for human consumption. You need to decide if you will use water coming from a specific source for one of the beverages your company produces, based on sample measures of this pollutant taken in random different locations and times at the source of water. In this case you would want to _____.

A. maximize the power of the test

B. maximize beta

C. minimize mu

D. maximize the significance, alpha

E. maximize 1 minus alpha

Answer:

In this case you would want to _____.

 

D. maximize the significance, alpha

Step-by-step explanation:

The alpha (α) denotes the significance level or the probability of rejecting the initial or null hypothesis when it is true.

A higher alpha (α) reduces the probability of committing a Type II error or not rejecting the null hypothesis. On the other hand, a higher alpha (α) makes it more probable to  reject a null hypothesis when it is true (Type I error).

6 0
3 years ago
Determine the slope of<br> the line that passes<br> through (2,5) and (3, 7).
krok68 [10]

Answer:

1/2

Step-by-step explanation:

7 0
3 years ago
Use the coordinates of the labeled points to find a point-slope equation of the line. (3,-4)
seropon [69]

Answer:

slope=-3  

y=-3x+5

Step-by-step explanation:

use two given points (3,-4)(0,5)

5- -4= 9

0-3=-3

9/-3=-3

6 0
3 years ago
Read 2 more answers
Other questions:
  • How many 5 pound bags of apples can be made from 400 apples each weighing 1/4 pound?
    13·2 answers
  • Cameras are set up to watch an intersection and determine how many cars are let through with each green light interval. This stu
    12·1 answer
  • What is this answer guys please help me I'm begging <br> 5(x+5)=65
    14·2 answers
  • Which graph models the equation 2x+3y=6
    8·1 answer
  • Write a rule for a geometric sequence that has -6 as its first term and a common ratio of 2. What is the tenth term of this sequ
    7·1 answer
  • The base of a triangle is 7/3 yd and the height is 1/2 yd . Find the area. Leave your answer as a fraction or whole number.
    13·1 answer
  • Pt=3x9 and tq=5x-7 because i have no idea what it is
    11·1 answer
  • Evaluate the function. f(x)=−x^2 −6x+12 Find f(4)
    14·1 answer
  • A scientist is working with 18 meters of gold wire. How long is the wire in millimeters?
    10·2 answers
  • What is another way to write (2x - 3)?​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!