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
V125BC [204]
3 years ago
5

Please help me, I don't know this one.

Mathematics
2 answers:
ipn [44]3 years ago
7 0
X =5 it’s literally division and multiplication
marishachu [46]3 years ago
6 0
If 18/6=3, then we divide 15/3=5, therefore, x=5
You might be interested in
Please help me now ! Thank you
jarptica [38.1K]
First we'll do two basic steps. Step 1 is to subtract 18 from both sides. After that, divide both sides by 2 to get x^2 all by itself. Let's do those two steps now

2x^2+18 = 10
2x^2+18-18 = 10-18 <<--- step 1
2x^2 = -8
(2x^2)/2 = -8/2 <<--- step 2
x^2 = -4

At this point, it should be fairly clear there are no solutions. How can we tell? By remembering that x^2 is never negative as long as x is real. 

Using the rule that negative times negative is a positive value, it is impossible to square a real numbered value and get a negative result. 

For example
2^2 = 2*2 = 4
8^2 = 8*8 = 64
(-10)^2 = (-10)*(-10) = 100
(-14)^2 = (-14)*(-14) = 196

No matter what value we pick, the result is positive. The only exception is that 0^2 = 0 is neither positive nor negative.

So x^2 = -4 has no real solutions. Taking the square root of both sides leads to

x^2 = -4
sqrt(x^2) = sqrt(-4)
|x| = sqrt(4)*sqrt(-1)
|x| = 2*i
x = 2i or x = -2i
which are complex non-real values


5 0
3 years ago
What is a typical age (the mean) for the people who were at Movie A?
Snowcat [4.5K]

It is 39

Because you have to count the little dots all the way till it is around the most age.

7 0
2 years ago
Emma puts $1000 in a savings account that pays 4% interest, compounded monthly. How much money will be in the account 3 years la
lorasvet [3.4K]

Answer:

Option A. \$1,127.27  

Step-by-step explanation:

we know that    

The compound interest formula is equal to  

A=P(1+\frac{r}{n})^{nt}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

t=3\ years\\ P=\$1,000\\ r=0.04\\n=12  

substitute in the formula above  

A=\$1,000(1+\frac{0.04}{12})^{12*3}=\$1,127.27  

6 0
3 years ago
Read 2 more answers
What is the volume of a cylinder when the radius is 3 and height is 7
kap26 [50]

Answer:

63pi

Step-by-step explanation:

the formula for the volume of a cylinder is pi r^2 h

r=radius

h=height

3=r

7=h

pi((3)^2)7

63pi units^3

Hope that helps :)

5 0
3 years ago
Read 2 more answers
Find the GCF of the following terms. <br> 16xy^3 , 20x^2y^2 , -4x^2y
Ivanshal [37]
16xy^3=4xy\cdot4y^2\\\\20x^2y^2=4xy\cdot5xy\\\\-4x^2y=4xy\cdot(-x)\\\\GCF(16xy^3;\ 20x^2y^2;\ -4x^2y)=4xy
7 0
3 years ago
Other questions:
  • Is 1 pint is equivalent to 0.473 liters??
    6·2 answers
  • What is the image of
    14·1 answer
  • jerome bought 2 postcards and received $1.35 in change in quarters and dimes. If he got coins back, how many of each coin did he
    14·1 answer
  • Graph the linear function.
    10·1 answer
  • Twice the sum of a number and negative three is ten. Find the number. Round your answer to the nearest integer, if necessary.
    10·2 answers
  • Evaluate:<br> g(x) = 3•2^x+2 + 3<br> g(3)
    15·1 answer
  • What is the percentage plz help me with this Question.
    11·2 answers
  • What two numbers multiplied = 6 but added = -5​
    6·2 answers
  • Help me please , I’ll really appreciate it
    14·1 answer
  • What is 9.65+0.4, 16.058- 1.2
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!