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
ss7ja [257]
3 years ago
9

Which number line represents all of the values of x for the equation x2 = 16?

Mathematics
1 answer:
Wittaler [7]3 years ago
4 0

Step-by-step explanation:

x² = 16

x = ±√16

x = ±4

x = -4 or 4

You might be interested in
1. A company produces two types of nutritional supplements; Energize and Excel. Energize contains 26 mg of vitamin A, 42 mg of v
geniusboy [140]

Answer:

1)A) Minimize C = 40x + 100y.

2) d) 7x + 8y ≤ 190, 5x + 4y ≤ 22, x ≥ 0, y ≥ 0.

3) B) Min C = 295x + 416y; s.t 23x + 15y ≥ 154, 17x + 25y ≥ 140, x ≥ 0, y ≥ 0.

Step-by-step explanation:

1) Energize pills cost 40 cents each, while Excel pills cost 100 cents each. If x represent the energize pills and y represent the excel pills, the objective function would be:

minimize cost = cost of energize pill + cost of excel pill

Minimize cost = 40x + 100y

2) Let x = the number of mountain bikes they produce, and let y = the number of racing bikes they produce.

7 hours of assemble time to produce a mountain bike and 8 hours of assemble time to produce a racing bike. Since the company has at most 190 hours for assemble time, it can be represented as:

7x + 8y≤ 190

5 hours of mechanical tuning to produce a mountain bike and 4 hours of mechanical tuning to produce a racing bike. Since the company has at most 22 hours for mechanical tuning, it can be represented as:

5x + 4y ≤ 22

Also assemble time and mechanical time must be greater than 0, hence:

x ≥ 0, y ≥ 0

3) The fieldwork constraint can be represented as:

23x + 15y ≥ 154

The time to be spent at university research center can be represented as:

17x + 25y ≥ 140

Both fieldwork time and time spent at university research center mut be greater than 0, hence:

x ≥ 0, y≥ 0

The cost equation is:

Minimize cost = 295x + 416y

5 0
3 years ago
Let: f(x)=x+1 and g(x)=x^2-2 <br><br> find: f(x)•g(x)
lesya692 [45]

Answer: x3+x2−2x−2

Step-by-step explanation: Use the given functions to set up and simplify f ( x ) ⋅ ( g ( x ) ) .

Brainliest or a thank you please! have a great day/night

3 0
3 years ago
PLEASE HELP I DONT KNOW
riadik2000 [5.3K]

Answer:

d, diameter

Step-by-step explanation:

radius is half of a diameter, or the distance from the center of the circle to the circumference

circle is a... circle

center is...

5 0
3 years ago
Read 2 more answers
There are 9 shipping boxes and each of these boxes has 19 shoe boxes, and each shoe box has 2 shoes. Which of the following is a
Reptile [31]
2 shoes in each box * 19 shoe boxes = 38 shoes

38 shoes * 9 shipping boxes would be 342 shoes in all

A good estimate would be around 342. Hope that helps
4 0
3 years ago
Read 2 more answers
Solve by substitution. Please show work<br> Y=-3x-14<br> -2x-y=9
Mama L [17]

Answer:

I dont know math

Step-by-step explanation:

like bro i havent been paying attention to school that I havent learn stuff and I'm in 9th grade

8 0
2 years ago
Read 2 more answers
Other questions:
  • Two angles are supplementary and have a ratio of 1:4. what is the size of the smaller angle
    6·2 answers
  • There are 8 young men and 11 young women in class record the ratio of young women to total students written there ways
    10·2 answers
  • Store A is selling a video for 20% off the store’s regular price of $25.95. Store B is selling the same video for 30% off the st
    10·1 answer
  • A square garden is surrounded by a walkway of width X. If the area of the garden is 484 ft2 and the area covered by both the gar
    6·1 answer
  • Solve the system, please show each step.
    5·2 answers
  • Suppose has a solution. Explain why the solution is unique precisely when has only the trivial solution. Choose the correct answ
    10·1 answer
  • A plumber had two pipes. The ratio of the length of the longer pipe to the
    13·1 answer
  • SOMEONE PLEASE HELP ME I WILL GIVE BRAINLY
    10·2 answers
  • Se mezclan alcohol 54% con alcohol de 90 y agua en la proporcion de 6,6 y "n" .hallar "n" sabien que mezclam es del mismo grado
    14·1 answer
  • Adam is 5 times as old as Charles. In 8 yrs the sum of their ages will be equal to twice Adam's present age. Find their present
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!