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
vovikov84 [41]
2 years ago
11

If x2 = 81, what are the TWO answers?

Mathematics
2 answers:
Sphinxa [80]2 years ago
8 0
Your answer is 9, -9
nika2105 [10]2 years ago
4 0

Answer:

9 and -9

Step-by-step explanation:

You might be interested in
A knife is three times the cost of a spoon. 9 spoons and 12 knifes cost ?82.80 workout the cost of 1 knife.
tankabanditka [31]

Let S = spoon

Let K = knife


1 knife is thee times the cost of a spoon, so it would be 3S

Now you have 9S + 12K = 82.80

We can replace the K with 3S:

9S +12(3S) = 82.80

Simplify the left side:

9S + 36S = 82.80

Add:

45S = 82.80

Divide both sides by 45"

S = 82.80 / 45

S = 1.84

One spoon cost $1.84


We know one knife cost 3 times as much, so multiply the cost of a spoon by 3:

Knife = 1.84 x 3 = $5.52

7 0
3 years ago
Read 2 more answers
What is the correct answer can you guys help me I really need help on this?? Please
luda_lava [24]
The answer is 192 y^8.

(4y^2)^3 = 64y^6

64y^6 • 3y^2= 192y^8

When “multiplying” a number with an exponent, you add the 2 exponents.
3 0
3 years ago
The question is in the picture
snow_lady [41]

Answer:men=152   women=76     children=38

Step-by-step explanation:

  • men+women+children=266
  • men=4*children
  • women=2*childrens
  • so let say x represent the numebers of children the equatin becomes: 4x+2x+x=266
  • solve for x =38 so the numbers of children is 38
  • men=4*38=152
  • women=2*38=76

5 0
2 years ago
At Pizza Pi, 32% of the pizzas made last week had extra cheese. If 16 pizzas had extra cheese, how many pizzas in all were made
igor_vitrenko [27]

Answer:

50

Step-by-step explanation:

you need to put  first the 32 on top of 100 since it always goes over 100 then you put 16 over a blank and you divide 32 by 16 which equals 2 so since you divided at the top you need to divide at the bottom so you divide 100 by 2 and you get 50 so 50 is your answer

7 0
3 years ago
-5 5/6 - ( -2 1/3 ) + 5 1/6
zzz [600]
The answer is 1 2/3!
7 0
2 years ago
Other questions:
  • Ryan deposits $775 in an account that pays 4.24% simple interest for four years. Brian deposits $775 in an account that pays 4.2
    11·2 answers
  • 6
    5·1 answer
  • What is the value of the expression All of 3.9 multiplied by 10 to the power 5 over all of 1.3 multiplied by 10 to the power 2?
    15·1 answer
  • |−12| = 12 True or False please help!!!!!
    5·2 answers
  • Can someone help me with this writing assignment?
    9·1 answer
  • -17-(-1)+2/3+(-1/2) or negative seventeen minus (negative one) plus two thirds plus (negative one half)
    13·1 answer
  • Soojin is adding some lengths of wood she used for a project. The lengths of wood are 123, 334, and 214 feet. How much wood did
    5·2 answers
  • Bridgette bought 1 pack of white T-shirts and 5 packs of blue T-shirts for her basketball team. The white T-shirts come in packs
    11·2 answers
  • 2(x + 1 ) - 3(x + 5) ≥ 0 please solve!!
    15·2 answers
  • A fruit punch recipe that serves 20 people calls for 32 fluid ounces of pineapple juice and 48 fluid ounces of orange juice. Mon
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!