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
musickatia [10]
3 years ago
9

PLEASE HELP ASAP WILL MARK BRAINLIEST!!

Mathematics
1 answer:
Papessa [141]3 years ago
7 0

Answer:

Prime.

Step-by-step explanation:

x^2-7x+8\\

First let's multiply our outer coefficients in this case 1 and 8, so we have 1x8=8.  Now the point of this is to get the factors of 8 and see if we can get that middle term -7.  Factors of 8 are 1x8, 2x4 and that's it.  From there I notice that -8+1 = -7 and so:

x^2-7x+8 = x^2-8x+x+8 = x(x-8)+(x+8)

Notice that the (x-8) and (x+8) are not the same factors, therefore the factors are not any of those answer choices and so it's prime.  You can calculate the factors by using the quadratic formula, however I think that is beyond the scope of this question.

You might be interested in
You can upgrade lighting at your factory to LED bulbs that cost $6.95 each and last an average of 5 years. It costs S3 in labor
marshall27 [118]

Answer:

11.95 dollars

Step-by-step explanation:

Cost of one LED bulb = 6.95 dollars

Cost of changing one bulb = 3 dollars

Life of each bulb = 5 years.

In 10 years, only one time after 5 years the bulbs would have been changed

Hence cost of 100 lamps = 695 and

cost of changing once = 500

Total cost = 1195 dollars for 11 years

Divide this by 10 years to get average cost per year

Cost of 100 lamps per year = 1195/100 = 11.95 dollars


8 0
3 years ago
Which property will Sarah use to solve 6x = 42?
Katarina [22]

Answer:

7

Step-by-step explanation:

4 0
3 years ago
The inequality describes the range of monthly average temperatures T in degrees Fahrenheit at a certain location. Find an equiva
kolezko [41]

Answer:

Now if the high and low monthly average temperatures satisfy the inequality, then the , monthly averages are always within 22 degrees of 43°F.

Step-by-step explanation:

The inequality describes the range of monthly average temperatures T in degrees Fahrenheit at a certain location.

The inequality expression is given as:

|T-43|\leq 22

now this expression could also be expressed as:

-22\leq T-43\leq22\\\\-22+43 \leq T \leq 22+43\\\\21\leq T\leq 65

Now if the high and low monthly average temperatures satisfy the inequality, then the , monthly averages are always within 22 degrees of 43°F.

( As the difference is 22 degrees to the left and right)

5 0
3 years ago
Lines that are tangent to a circle are
jonny [76]

Step-by-step explanation:

Lines that are tangent to a circle are perpendicular to the radius of the circle.

Lines that are tangent to a circle are congruent

5 0
3 years ago
Martha is starting to save for a new laptop. She has been keeping track of her savings every day. The graph shows the number of
sammy [17]

Answer:

tell martha to buy huwei matebook x 2020 , its a good one

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Help plz im not that good at this
    6·1 answer
  • Which expression is equivalent to (125^2/125^4/3)
    13·2 answers
  • Plz help me I don’t understand it’s hard
    10·1 answer
  • A piece of paper is in the shape of a rectangle. The piece of paper is 1 5/8 inches (in.) wide and 8 3/4 in. long. A student cut
    9·1 answer
  • Liz needs to keep no less than $500 in her checking account to avoid fees. She had $524.75 before writing a check for $65.99. Ho
    14·1 answer
  • Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=10
    12·1 answer
  • What is the image point of (-6, 9) after a translation left 4 uints and down 1 unit?
    12·1 answer
  • Malcom’s Tee Shirt & Jacket Company is to produce a new line of rain coats. There are fixed costs of $570 to set up for prod
    15·1 answer
  • Please help due in 19 minutes
    10·1 answer
  • Which of the following constants can be added to x2 - 3x to form a perfect square trinomail?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!