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
lutik1710 [3]
3 years ago
6

Multiply (5a+7)(5a-7)

Mathematics
2 answers:
soldier1979 [14.2K]3 years ago
6 0
=25a^2-49
Steps
1)Simplify:(5a)^2-7^2
2)evaluate:25a^2-49
vovikov84 [41]3 years ago
5 0

Answer:

25a^2-49

Step-by-step explanation:

1)use FOIL

F=first

O=out

I=inside

L=last

5a*5a+5a*-7+7*5a*7*-7

25a^2-35a+35a-49

25a^2-49

Hope this helps!

You might be interested in
Find the OPPOSITE of each integer. -3
vivado [14]

Answer:

3

Step-by-step explanation:

7 0
3 years ago
3+2x=15 solve for x.
JulijaS [17]
3 + 2x = 15
2x = 15-3
2x = 12
x = 12/2
x= 6
Not sure is it’s right:)!
6 0
3 years ago
Answer the following questions CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!
liberstina [14]

Answer by JKismyhusbandbae: 9

(5 + 12 + 8 + 12 + 11 + 8 + 5 + 5 + 7 + 12)/10=9

To find the mean, add up all the lengths and divide by 10.

4 0
3 years ago
What information is needed in order to apply the hypotenuse-leg (HL) theorem
Lorico [155]

Answer:

This theorem states that 'if the hypotenuse and one leg of a right triangle are congruent to the hypotenuse and one leg of another right triangle, then the triangles are congruent. ' This is kind of like the SAS, or side-angle-side postulate. But SAS requires you to know two sides and the included angle.

Step-by-step explanation:

6 0
3 years ago
If the hikers want to share the fruit evenly how many pieces should each person receive ?
Ivan
Is there a photo to attach to this? Number of hikers, number of fruit would be appreciated.
3 0
3 years ago
Other questions:
  • In an aquarium, there are 6 large fish and 8 small fish. Half of the large fish are blue.
    14·2 answers
  • Simplify and solve this equation for q: 3q + 5 + 2q – 5 = 65.
    5·2 answers
  • A newspaper carrier has ​$4.254.25 in change. he has sevenseven more quarters than dimes but twotwo times as many nickels as qua
    8·1 answer
  • What is the solution to the equation 3.6m − 2.7 = −1.8m?
    7·2 answers
  • Carolina goes to a paintball field that charges an entrance fee of \$18 and $0.08, per ball. The field has a promotion that says
    14·1 answer
  • Do you find this with synthetic and long divison?
    12·1 answer
  • Given the following equations, determine the relationship of the lines they represent: y = 5 and x = 6.
    8·2 answers
  • When a number is subtracted from 11, the result is 6 more than the number. Find the number.
    11·2 answers
  • About how long will it take Karen’s investment to double if it earns 18% interest compounded annually? A. 4 years B. 5 years C.
    10·1 answer
  • Omar says that 4a times 4a will get 16a. Explain his mistake.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!