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
juin [17]
3 years ago
13

What are the factors of x^2-81

Mathematics
2 answers:
emmasim [6.3K]3 years ago
6 0

Answer:

A.) (x+9) (x-9)

Step-by-step explanation:

x² - 81

x² - 9²

(x - 9)(x + 9)

zalisa [80]3 years ago
4 0

Answer:

A. x-9 and x+9 because these are perfect squares. 9 times -9 is -81. x times x is x^2. 9 + -9 is 0

Step-by-step explanation:

You might be interested in
The stem-and-leaf plot below gives the gas mileages (in miles per gallon) for 14 new cars. Use the plot to answer the questions
Sauron [17]

Answer:

a) 1

b) 58

c) 47

Step-by-step explanation:

don't really have a step by step explanation I just took the information from the chart and applied it to the questions

5 0
3 years ago
Type the expression that results from the following series of steps:
Sergio039 [100]

Answer:

n+5×4-7

Step-by-step explanation:

6 0
3 years ago
Are these all correct?
sladkih [1.3K]
Problem 1) Line n is the line of symmetry (not line o) because we can fold the lower half to match up with the upper half. The folding line is over line n.

Problem 2) I agree. Nice work on getting the correct answer. The folding line is a vertical line through the center

Problem 3) It's hard to say for sure, but I think the top left corner is NOT reflective over any line of symmetry no matter how you rotate it. So I would uncheck that box. I agree with your other choices though. Great job with those. 
4 0
4 years ago
What is 5(-x) equal to?
Gnoma [55]

Answer:

?

Step-by-step explanation:

where are the options?

4 0
3 years ago
A spherical cantaloupe is cut in half. The visible cross-section has an area of 5252 in2. The volume of the cantaloupe is _____
artcher [175]

Answer:

V = 286319.465 cm3

Step-by-step explanation:

First, you have to find the radius to be able to find the volume of a sphere.

The equation for the area of a circle is pi r^2 so you have to so some algebra.

5252 = pi r ^2

5252/pi = r^2

1671.76352 = r^2

sqrt(1671.76352) = r

r = 40.8872048

then you do the equation for the volume of a circle which is 4/3 pi r^3

4/3 pi (40.8872048)^3

4/3 pi 68353.7373

4/3 214739.599

286319.465

V = 286319.465 cm3

6 0
3 years ago
Other questions:
  • Evaluate each expression when a=1/3, b= 4 and c = 9
    5·1 answer
  • Sing the correct answer from part b, calculate the volume of a rectangular prism with a length of 5.6 cm, a width of 2.1 cm, and
    8·1 answer
  • Can you guys help me with these 2 questions??? I will mark you guys the brainiest whoever answer correctly
    5·1 answer
  • Help!!!..
    14·1 answer
  • What is area of a rectangle with a length of 6 x to the power of 4 and a width of 5 x squared?
    9·1 answer
  • 1.6[7-4m]=30<br> 2.[5+6a]-3=8
    10·1 answer
  • I know it’s not 5 please help.
    6·1 answer
  • Write the following in slope-intercept form , when the slope is -4 and the y-intercept is 9
    9·1 answer
  • Which value is not equivalent 0.37 0.370 37/100
    7·2 answers
  • there are 20 oranges in a box .if 5 oranges are rotten, calculate what percentage of the oranges are good need all calculations
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!