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
solong [7]
3 years ago
13

The sum of a number and its square is 90. Find the number.

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
8 0
<h2><u>Answer: 9</u></h2><h2><u>Step-by-step explanation</u></h2><h2><u>Explanation:</u></h2><h2><u>Let n be the integer in question. Then we have</u></h2><h2><u>We now have a quadratic equation to solve. We could use the quadratic formula, however we know that </u></h2><h2><u>n</u></h2><h2><u> is an integer, so instead let's try to solve by factoring instead.</u></h2>

<u />

You might be interested in
Select the reason that supports the following statement.
son4ous [18]

Answer:

B. Subtraction property of equality

Step-by-step explanation:

If you subtract angle 3 from both sides, then angle two and angle four must be equal. The property you would be using is the subtraction property of equality.

8 0
3 years ago
What's the answer to X/-40= 9 (ANSWER NOT A FRACTION)
katovenus [111]
Hi there!

Okay, so here are the steps to solving:

1) Simplify both sides of the equation.
-1/40x = -9

2) Multiply both sides by 40/(-1).
(40/-1) * (-1/40x) = (40/-1) * (-9)
x = 360

The final answer is x = 360.

Hope this helps!
6 0
3 years ago
9x9+3x3=<br> what does that equal too
svp [43]

Answer:

252

9x9=81 +3=84

84x3=252

3 0
3 years ago
Read 2 more answers
3 pens cost $2.70.
mafiozo [28]

Answer:

$0.90 per pen

2.70/3=.90

7 0
3 years ago
Read 2 more answers
Mike practices the cello every 5 days and the piano every 13 days. Mike practiced both the cello and the piano today. How many d
Rus_ich [418]

Answer:

65 days.

Step-by-step explanation:

because 13 multiplied 5 is 65 and 5 multiplied by 13 is also 65.

7 0
3 years ago
Other questions:
  • Log_2(log_5 x) =3 show steps
    15·1 answer
  • A cone has a radius of 5 inches and a height of 18 inches. What is the exact volume of the cone?
    10·1 answer
  • What is the answer for 7150 km divided by 50 km/hour?
    13·1 answer
  • Parabola with vertex at (4, -2) and passes through<br> the point (2, 10)
    10·1 answer
  • How many tissues should the kimberly clark corporation package of kleenex contain? researchers determined that 60 tissues is the
    6·1 answer
  • (4x2y3)2=? thank you for the help
    7·1 answer
  • A city park commission received a donation of playground equipment from a parents' organization. The area of the playground need
    7·1 answer
  • Write an equivalent system of equations to the following of equations: 2x+2y=-6 and x-4y=2​
    7·1 answer
  • Ok soooo yeah I just need help ok ily
    15·2 answers
  • Which verb form correctly completes this sentence?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!