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
givi [52]
2 years ago
14

What is the sum of the 12th square number and the 9th square number

Mathematics
1 answer:
Inessa [10]2 years ago
6 0

Answer: 225

Step-by-step explanation:

<u>What is a square number</u>?

A square number is a product of a number times itself

So, the 12th square number would be 12 * 12, or 12²

The 9th square number would be 9 * 9, or 9²

The equation would be 12² + 9²

So:

12² + 9²

= 144 + 81

= 225

So, the answer is 225

You might be interested in
Please help and explain!!!!!
FinnZ [79.3K]

Let x be the amount of the 30% alloy and y the amount of the 60% alloy the metalworker will use. However much is used, the final alloy will have a mass of

x+y=100

kilograms. For each kg of the 30% alloy used, 0.3 kg is copper; similary, each kg of the 60% alloy contributes 0.6 kg, so that

0.3x+0.6y=0.54(x+y)=54

Now,

x+y=100\implies y=100-x

\implies0.3x+0.6(100-x)=54

\implies60-0.3x=54

\implies0.3x=6

\implies x=20

\implies y=100-20=80

6 0
3 years ago
Palawbhehrht awnser yes or mo
wariber [46]

Answer:

yes

Step-by-step explanation:

4 0
2 years ago
Please help! will mark brainliest
marin [14]

The correct answer is D.

x= -4 and y=2

left 4  up 2


7 0
3 years ago
How do u find angle mesurements in a triangle
alexgriva [62]
The sum of all the angles must be 180 degrees.
3 0
3 years ago
What’s the answer????
hodyreva [135]

Answer:

g

Step-by-step explanation:

42 cups in to pints is 21 so g

3 0
3 years ago
Other questions:
  • Simplify (4−b)(5b2+5b−4)
    11·1 answer
  • 5 students sharing 4 bags of popcorn equally
    5·2 answers
  • Use compatible numbers to find two estimates that the quotient is between. <br><br> 1,754 divided 9
    9·2 answers
  • Which complex number has an absolute value of 5?
    10·2 answers
  • If a car is traveling 10mph, and it speeds up 5mph, how fast is the car going?
    8·1 answer
  • Please I Really Need Help Fast
    15·2 answers
  • A deck of cards had 7 blue cards, 11 red cards, 9 yellow cards, 8 orange cards, and 10 green cards. What is the probability that
    5·1 answer
  • I will give brainliest to the right answer&lt;3
    14·1 answer
  • The mean monthly gasoline bill for one household is greater than $120. If a hypothesis test is performed, how should you interpr
    7·1 answer
  • Ashley bought 3 bottles of water and a large pizza. The pizza cost is $10.99 and the total bill was $15.49
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!