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
Travka [436]
3 years ago
5

The square of a number decreased by the square of one half the number is 108. What is the number?

Mathematics
1 answer:
Shkiper50 [21]3 years ago
6 0
Let the number be n.  Then

n^2 - (n/2)^2 = 108.
                                          n
From this we get    n^2 - (---- )^2 = 108.
                                          2

 Mult. both terms by 4, with the result   4n^2 - n^2 = 432

Then 3n^2 = 432, and n^2 = 144.  n could be either 12 or -12.  You must check both answers by subst. them into the original equation.



You might be interested in
How much simple interest rate would earn if had $10,000 and you were being paid 5% for 15 months?
lakkis [162]
Here is the interest equation: I=prt
Where I is interest, p is principal, r is rate and t is time(in years).
Substitute with known values.

I= prt
I= 10000(.05)(1 and 1 over 4)
I= 625
Answer: $625 for 15 months.
4 0
3 years ago
Which relation is a function?
yKpoI14uk [10]

Answer:

C

Step-by-step explanation:

if you don't have from same x different outcomes is a function

think that x is a day you count votes, you can not get for the same day different y number of votes ( something is fishy then)

A. not a function because (6, -3) and (6, 3)

B. not  a function because (4,7) and (4,2)

C. is a function

D. not a function because (2, -1) (2,1) (2,3)

4 0
3 years ago
PLEASE HELP! IM A MONTH BEHIND IN MATH AND FREAKING OUT T^T PLZZZZ
ANTONII [103]
A) Let x stand for time, y stand for velocity.
We are given the points (2,50), (6, 54). We can make a line using the slope intercept form
y = mx + b.
slope is (54 - 50)/(6-2)  = 4/4 = 1
y = 1x + b
plug in point (2,50) to find b
50 = 1(2) + b
50-2 = b
48 = b
the equation is  y = 1x + 48
Make standard form.
<span>x - y = -48
</span><span>b) make a table and plot points for the first 7 hours
Table Is attached.
Good Luck!
If you like the answer please give me brainliest answer!
</span>

3 0
3 years ago
How to do proportional triangles
harina [27]

Answer: If the measures of the corresponding sides of two triangles are proportional then the triangles are similar. Likewise if the measures of two sides in one triangle are proportional to the corresponding sides in another triangle and the including angles are congruent then the triangles are similar.

Step-by-step explanation:

7 0
3 years ago
Steve's sister is 25 years old. her age is 5 years more than 4 times his age.
Virty [35]

Answer:

Steve is 5

Step-by-step explanation:

Steves sister is 25, she is 5 years more than 4 times steve is.

5 * 4 = 20 and the sister is 5 years older so,

Steve is 5

6 0
3 years ago
Other questions:
  • mark's computer weighs 35.769 pounds. what is the weight of his computer rounded to the nearest hundredth
    15·2 answers
  • What is 8x-27-10-6x=15
    9·2 answers
  • If m&lt;1=70 degrees and &lt;1 and &lt;2 are supplementary angles . Find m&lt;2
    8·1 answer
  • EXTRA POINTS! FIND THE MISSING DIMENSION! NEED ASAP
    5·2 answers
  • BRAINLIEST ANSWER TO FIRST ANSWERER!!
    6·1 answer
  • PEOPLE PLZ HELP ME, MATH
    5·1 answer
  • The number 0.4 can be written as 4/10 so it is a rational number.
    13·1 answer
  • There are 86,400, frames of animation in 1 hour of anime. How many frames are there per second? There are 3,600 seconds in 1 hou
    9·2 answers
  • How many solutions does the nonlinear system of equations graphed below have?
    8·1 answer
  • Jacob is renting an auger (used to drill holes for posts). On Home Depot's website, the charge is $65 plus $7 per hour. At Lowes
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!