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
Sloan [31]
3 years ago
15

I don't understand how to solve this

Mathematics
1 answer:
Trava [24]3 years ago
8 0
X^2+81=4x^2
3x^2=81
x^2=27
x=(27)^0.5
You might be interested in
What is the value of n in the equation 1/2(n – 4) – 3 = 3 – (2n + 3)?
Travka [436]
Distribute 1/2 to <span>(n – 4):

</span>\frac{1}{2} \times n = \frac{1}{2}n
\frac{1}{2} \times -4 = -2
<span>
Subtract (2n + 3):

</span>- (2n + 3) = -2n -3
<span>
Your equation should now look like this:

</span>\frac{1}{2}n - 2 - 3 = 3 - 2n - 3
<span>
Combine like terms on both sides:

</span>-2 - 3 = -5
3 - 3 = 0
\frac{1}{2}n - 5 = -2n
<span>
Subtract 1/2n from both sides:

</span>-5 = -\frac{5}{2}n
<span>
Divide both sides by -5/2 to get n by itself:

</span>n = 2
<span>
The value of n is 2.</span>
8 0
3 years ago
Read 2 more answers
The question is on the image<br>(explain each step)​
LuckyWell [14K]
<h3>Answer:  x = 35</h3>

==========================================================

Explanation:

All three angles must add to 180. This is true for any triangle.

x+x+110 = 180

2x+110 = 180

2x = 180-110 ... subtract 110 from both sides

2x = 70

x = 70/2 .... divide both sides by 2

x = 35

As a check: 35+35+110 = 180 which helps confirm the answer.

7 0
3 years ago
Read 2 more answers
Solve the equation for the indicated variable.<br><br> x=2y-2 for y
stira [4]

Answer:

2y - 2 = x

2y = x + 2

y = (x + 2)/2

3 0
3 years ago
Pizza is available with three kinds of cheese and four toppings. how many different ways can you order your pizza with one type
e-lub [12.9K]
You will choose 1 cheese 3 different ways because there are three types of cheeses.

You will choose your topings 6 different ways. 4!/(2!2!) = 4*3/2 = 6

Therefore you will be able to get 6 * 3 different pizzas = 18 pizza combinations.

To confirm the toppings, suppose they are (M)ushrooms (P)epperoni (O)nions and (B)acon

M P
M O
M B
P O
P B
O B

Total 6.The order doesn't matter here. M O is the same thing as OM
8 0
3 years ago
W + 3/2 &lt; -8<br><br> Can you help me please?
RUDIKE [14]
I hope this helps you




w +3 < -8.2


w < -16-3


w < -19
3 0
3 years ago
Read 2 more answers
Other questions:
  • If cos Θ =-4/7 , what are the values of sin Θ and tan Θ?
    5·1 answer
  • How black hole does work.
    15·2 answers
  • Geometry help?????????????????????
    11·1 answer
  • 100 is what percent of 1000
    9·1 answer
  • Helppp? I don’t even understand thisss
    15·1 answer
  • A delivery truck has 40,000 miles on its odometer and travels an average of 22,000 miles per year.
    10·1 answer
  • a pitcher holds 4 2/3 pints of iced tea. If one serving is 1/3 of a pint, how many servings of iced tea does the pitcher hold?
    15·2 answers
  • PLEASE HELP ASAP!!!!!!
    9·1 answer
  • Supriya is decorating her bedroom. She plans to hang strings of twinkle lights all the way around her walls. She measures the wa
    12·1 answer
  • If AJKL ~ AMKN, find the value of x.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!