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
ICE Princess25 [194]
2 years ago
9

FACTORIZAR LOS SIGUIENTES POLINOMIOS. a2 - 81 =

Mathematics
1 answer:
Sphinxa [80]2 years ago
7 0

Answer:

(a+9)(a-9)

Step-by-step explanation:

Both terms are perfect squares, use the difference of squares formula

a^2-b^2=(a+b)(a-b) where a=a and b=9

You might be interested in
One angle in a triangle has a measure of 87 degrees. What can you conclude about the other two angles?
Dominik [7]

Answer:

the sum of the other two angle is 93

Step-by-step explanation:

180-87=93

6 0
3 years ago
What percent of 75.5 is 81.54
lutik1710 [3]
If you would like to know what percent of 75.5 is 81.54, you can calculate this using the following steps:

x% of 75.5 is 81.54
x% * 75.5 = 81.54
x/100 * 75.5 = 81.54
x = 81.54 * 100 / 75.5
x = 108%

Result: 108% of 75.5 is 81.54.
8 0
2 years ago
HAVE A NICE DAY <br> WILL GIVE BRAINLST :)
Novosadov [1.4K]

Answer:

1. A

2. C

Step-by-step explanation:

6 0
2 years ago
If a vertical pole 30 ft tall casts a shadow 8ft long, how long would the shadow of 40-ft pole be at the same time and place
TEA [102]
Since it as at the same time and place.

Let x be the length of the shadow of the 40-ft pole.

The ratio from 30 and 8 would have to be the same as 40 and x.

30:8  =  40:x

30/8 = 40/x    Cross multiply

30x = 40*8

x = 40*8 / 30 = 32/3 = 10.67

Length of shadow for 40ft  is 10.67 ft.
5 0
2 years ago
Solve for for the angle x.
kkurt [141]

Answer: try 90 or 120

Step-by-step explanation:

becouse i did good maths in my head its to small to be 180 and to big to be 80 so e

7 0
3 years ago
Read 2 more answers
Other questions:
  • I need help understanding it
    6·1 answer
  • Please anyone help me
    7·2 answers
  • A customer wants you to enlarge a photo to 2 3/ 4 its current height. The photo's current height is 3 1/4 inches. What should it
    6·1 answer
  • A clerk at a local camera shop earns a 5% commission on all sales. How much commission does the clerk earn on a $500 sale?
    11·1 answer
  • Marsha borrowed $300 for 18 months at 13 percent interest.
    7·2 answers
  • Find the measure of the missing side
    9·2 answers
  • What is the rate of change of the following equation?<br> y = x - 4
    14·1 answer
  • The output of a function is 7 more than 2 times the input. Write and solve an equation to find the input when the output is 15
    5·1 answer
  • An important factor in selling a residential property is the number of times real estate agents show a home. A sample of 23 home
    5·1 answer
  • what is the volume of this cone? use 3.14 for pi in round your answer to the nearest 10th. In your answer, give the volume of th
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!