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
Reptile [31]
2 years ago
13

When 36 is subtracted from the square of a number, the result is five times the number. What is the positive solution?

Mathematics
1 answer:
yarga [219]2 years ago
7 0

Answer:

9

Step-by-step explanation:

x^{2}  - 36 = 5x

x^{2} - 36 = 5x

x^{2} -5x = 36

9^{2} - 45 = 36

  + 45  + 45

-----------------------

81 = 81 ✅

9^{2} - 36 = 5(9)

81 - 36 = 45 ✅

You might be interested in
Is the following relation a function. <br><br> A) yes<br> B) no
dmitriy555 [2]

Answer:

yes

Step-by-step explanation:

A relation is a function in which for each input there is only one output.

In a relation, y is a function of x.

Now we look at the mapping

For input 6, -1 is the output

for input -1, 2 is the output

for input 4, 3 is the output

for input 0, 3 is the output

For each input , there is an output. Input is not repeating. Input is occurring only once.

So this relation is a function.

4 0
3 years ago
12, 17, 22, ...<br> Find the 36th term.
pychu [463]

Answer:

187

Step-by-step explanation:

a=12,d=17-12=5

nth term =a+(n-1)d

36th term=12+(36-1)5

=12+(35×5)

12+175

36th term=187

8 0
2 years ago
Write a point slope equation ​
Over [174]

point slope equation formula: y - y1 = m (x - x1)

(-1,4) (-2,1)

answer:

1 -4 = 3 (-2+1)

4 0
2 years ago
Use the "rule of 72" to estimate the doubling time (in years) for the interest rate, and then calculate it exactly. (Round your
Law Incorporation [45]

Answer:

According to the rule of 72, the doubling time for this interest rate is 8 years.

The exact doubling time of this amount is 8.04 years.

Step-by-step explanation:

Sometimes, the compound interest formula is quite complex to be solved, so the result can be estimated by the rule of 72.

By the rule of 72, we have that the doubling time D is given by:

D = \frac{72}{Interest Rate}

The interest rate is in %.

In our exercise, the interest rate is 9%. So, by the rule of 72:

D = \frac{72}{9} = 8.

According to the rule of 72, the doubling time for this interest rate is 8 years.

Exact answer:

The exact answer is going to be found using the compound interest formula.

A = P(1 + \frac{r}{n})^{nt}

In which A is the amount of money, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per unit t and t is the time the money is invested or borrowed for.

So, for this exercise, we have:

We want to find the doubling time, that is, the time in which the amount is double the initial amount, double the principal.

is double the initial amount, double the principal.

A = 2P

r = 0.09

The interest is compounded anually, so n = 1

A = P(1 + \frac{r}{n})^{nt}

2P = P(1 + \frac{0.09}{1})^{t}

2 = (1.09)^{t}

Now, we apply the following log propriety:

\log_{a} a^{n} = n

So:

\log_{1.09}(1.09)^{t} = \log_{1.09} 2

t = 8.04

The exact doubling time of this amount is 8.04 years.

4 0
3 years ago
Anyone please help me check these answers? I'm stressing out and in a panic mode because I may not finish 9th grade. Please help
anygoal [31]
Pic 1 is correct
Pic 2 is correct
Pic 3 is correct
4 0
3 years ago
Other questions:
  • 3 square root of 250 in simplest radical form
    8·1 answer
  • Fill in the missing numbers to complete the linear equation that gives the rule for this table x f(x) 0 -28 1 -17 2 -6 3 5
    10·2 answers
  • A central angle of circle P is angle The measure of is degrees.
    11·2 answers
  • Whoever Answers I Will Mark Brainliest Which Division Is Shown By The Following Model?
    12·2 answers
  • Please help me, i really don't understand this ​
    14·1 answer
  • What is the value of the expression?
    13·2 answers
  • Helpp!!!!!!!Plz.....
    8·1 answer
  • The triangular face of the given prism has an interior angle with a measure of 55° and an exterior angle with a measure of 95°.
    7·2 answers
  • A population of 65 foxes in a wildlife preserve triples in size every 13 years. The function y=65 x 3x, where x is the number of
    10·2 answers
  • what is the opportunity cost of buying a $.75 soda every school day for three years instead of drinking water? assume you are in
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!