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
ankoles [38]
3 years ago
15

Find (3) if f(x)=x2 + 2x2-x-1

Mathematics
1 answer:
Olenka [21]3 years ago
7 0

Answer:

The correct answer is:

f(3)=23

Step-by-step explanation:

By evaluating first, and then the mathematical calculation, we have:

f(3)= 3^{2} + 2 ×3^{2} - 3 -1 

= 9 +18 -3-1  

= 23

You might be interested in
if a city that currently has a population of 1000 triples in size every 8 years, what will the population be in 24 years?
Kipish [7]
Year 1 - 1000
year 8 -  3000
year 16 - 9000
year 24 - 27000
7 0
4 years ago
Three in seven times four on three
IgorC [24]

Answer:

Step-by-step explanation:

So not exactly sure what your asking because of the wording but I got 28. Hope this helps.

7 0
3 years ago
Read 2 more answers
What is the vertex of the quadratic function y=-x²+6x+7? ​
vichka [17]

Answer:

(3,16)

Step-by-step explanation:

Factor the equation to find out that the roots are 7 and -1. The vertex's x will be in the center of these two points, so the center point between 7 and -1 is 3. Continue to substitute the x in the equation with 3 to get the other coordinate for vertex.

6 0
3 years ago
Design specifications require that a key dimension on a product measure 105 ± 12 units. A process being considered for producing
marta [7]

Answer:

Cpk = Cpu = Cpl = 0.4785

Step-by-step explanation:

Solution:-

- The capability of a process is determined using the capability index ( Cpk ). The index helps in determining the output of the process lies within the specification limits.

- The key dimension on a product measure is:

                                 105 ± 12 units

- Process is producing this product at a 6-sigma quality standards i.e ( process is producing this product has a standard deviation (σ) of three units.)

Where,         Standard Error in measured value = 12 units.

- The process capability (Cpu) is defined based on the Upper Specification Limit of the process (USL):

                             Cpu = (USL - u) / 3σ

- The process capability (Cpl) is defined based on the Lower Specification Limit of the process (LSL):

                             Cpl = ( u - LSL) / 3σ

- Assume that the process is centered with respect to specifications, then the given absolute value of u = 105 units.

Where the specification limits are defined as:

                             LSL = u - SE = 105 - 12

                             LSL = 93 units

                             USL = u + SE = 105 + 12

                             USL = 117 units

- Now evaluate the Process capability on each of the two limits specification limits:

                           Cpu = (USL - u) / 3σ

                           Cpu = (117 - 105) / 3σ

                           Cpu = 4 / σ

                           Cpl = ( u - LSL) / 3σ

                           Cpl = ( 105 - 99 ) / 3σ

                          Cpl = 4 / σ    

- The minimum of Cpu and Cpl is denoted as the Cpk value:

                           Cpk = min ( Cpu , Cpl )

                           Cpk = Cpu = Cpl = 4 / 8.36

                           Cpk = Cpu = Cpl = 4 / 8.36 = 0.4785          

               

6 0
3 years ago
An item is regular priced is at $60. It is on sale for 55% off the regular price. What is the sale price?
dalvyx [7]
0.550×$60 = $33
$60- $33= $27.00
Therefore, the answer is $27
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is prime notation?
    7·1 answer
  • Does the table represent a linear relationship (3,15) (9,45) (21,105) why or why not?
    11·1 answer
  • What is the correct definition for cot θ
    7·1 answer
  • 6x + 14 = 7 - x<br> А.<br> В. ДІ<br> 1<br> D. I<br> NA<br> Huh?
    11·1 answer
  • Solve 2x-16 divided 4
    14·1 answer
  • Please can someone help quickly
    11·1 answer
  • Fwd:The hardware store is having a 15% off sale on lawn mowers this weekend. If x is the original price of a lawn mower, what wi
    9·1 answer
  • What equation is perpendicular to the equation 4y=x-36
    7·1 answer
  • If (a+10) and a are in straight line find the value of a​
    8·1 answer
  • What is 28.5dived by 11 equal explain how you got the answer.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!