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
schepotkina [342]
3 years ago
14

Please help me with this problem

Mathematics
1 answer:
Softa [21]3 years ago
8 0

Put 5 where n is in the formula and do the arithmetic. I find it convenient to rewrite the formula to make evaluation simpler.

a_n=((n+1)n-9)n-9\\\\a_5=((5+1)5-9)5-9=21\cdot 5-9=\bf{96}

... matches the 2nd choice

You might be interested in
From $25 to $23 is what percent decrease?
Damm [24]

Answer:

the answer is 2% decreasing

5 0
3 years ago
If the area of a circle is 64 square meters then what is the radius
s2008m [1.1K]

Answer:

Radius = 4.51

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Solve this system using the linear combination method. Show your work.
kipiarov [429]

Answer:

Let's solve for x.

4x+2y=5

Step 1: Add -2y to both sides.

4x+2y+−2y=5+−2y

4x=−2y+5

Step 2: Divide both sides by 4.

4x

4

=

−2y+5

4

x=

−1

2

y+

5

4

Let's solve for x.

−4x−5y=7

Step 1: Add 5y to both sides.

−4x−5y+5y=7+5y

−4x=5y+7

Step 2: Divide both sides by -4.

−4x

−4

=

5y+7

−4

x=

−5

4

y+

−7

4

Answer:

x=

−5

4

y+

−7

4

Step-by-step explanation:

I hope this helps

3 0
3 years ago
Write the standard form equation of a circle that passes through (8,7) with the center (3,-5)
Marysya12 [62]

The standard equation of a circle is given by:

(x-h)^2+(y-k)^2=r^2

Where r is the radius and the center is located at (h, k).

Since the center is at (3, -5), we have h = 3 and k = -5.

Now, to calculate the radius, let's use the point (8, 7) in the equation and solve it for r:

\begin{gathered} (8-3)^2+(7-(-5))^2=r^2\\ \\ 5^2+12^2=r^2\\ \\ r^2=25+144\\ \\ r^2=169\\ \\ r=13 \end{gathered}

Therefore the equation of the circle is:

(x-3)^2+(y+5)^2=169

8 0
2 years ago
A mass of 300 kg is increased by 8%.<br> work out the percentage increase<br><br> show working plsss
Marizza181 [45]
300×8% which comes out to be 300×0.08 = 24
5 0
3 years ago
Read 2 more answers
Other questions:
  • What does 3 times 1/3 also what does 12 times 1/3 also what is 9 times 1/9
    9·2 answers
  • Please help me out.....................
    7·1 answer
  • Choose the graph that represents:<br><br> y &gt; |x-1| + 3
    13·2 answers
  • Which equation represents exponential decay?
    11·1 answer
  • POSSIBLE POINT<br> Evaluate each expression if a = 4, b = 6, and c = 2<br> What is<br> ab - c
    7·1 answer
  • 32 divided by 6583 please answer quickly
    8·1 answer
  • Solve the compound inequality. Graph your solution. 2x – 2 &lt; –12 or 2x + 3 &gt; 7 x &lt; –5 or x &gt; 5 x &lt; –5 or x &gt; 2
    10·1 answer
  • 2. What is the difference if 0.915 is taken from 2.31?
    11·1 answer
  • If at a toy store, 2 board games cost $13.40, what is the unit price of a board game?
    5·1 answer
  • Please I need Help!!! Solve this equation by factoring by grouping x^2-4x=12. All work must be shown and no other method will be
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!