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
Semenov [28]
3 years ago
15

Simplify : this problem

Mathematics
1 answer:
Nikitich [7]3 years ago
6 0
Answer:
\frac{(7r + 1)(7r - 1)}{7r}
You might be interested in
What is the percent of change from 4,000 to 600?<br> work too plz
xenn [34]
\frac { n }{ 100 } \cdot 4,000=600\\ \\ 4,000\cdot n=60,000\\ \\ Therefore:\\ \\ n=\frac { 60,000 }{ 4,000 }

\\ \\ =\frac { 60\cdot 1,000 }{ 4\cdot 1,000 } \\ \\ =\frac { 60 }{ 4 } \\ \\ =15

As 15% of 4,000 is 600, the percentage change was -85%.
4 0
3 years ago
If a = -2, b = 6, and c = -5, find the value of a(3a² + 2ac)
sp2606 [1]
(-2)(3*4+2(-2)(-5)) = -2(12+20) = -2(32) = -64
7 0
3 years ago
Now that you've figured out the formula for the area of acircle, A =Tr?, let's find the information we need tocalculate that are
satela [25.4K]

According to the given diagram, the diameter of the circle is 9 feet.

Remember that the radius is half the diameter, so the radius is 4.5 feet.

<h2>Hence, the answer is 4.5 feet.</h2>
5 0
1 year ago
Use this diagram to find the required measures. 1 = 30°, 2 = 30°, 3 =
crimeas [40]

Answer:

if thisa is a triangle then 180-30+30 = 120 degree and we say all angles on a triangle add up to 180

Then reaply the rule changing 180 to 360 on all 4 sided shapes

180(n-2) to all other shapes.

ie) pentagon 180(n-2) = 540

continue with 540-30-30 = 480 etc....

Step-by-step explanation:

7 0
3 years ago
I have a 84% in class, there is a 25 point quiz worth 100 points, how what grade do I need to get to at least have an average gr
Thepotemich [5.8K]

At least about 20 points it can depend on the class but not really.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose that m∠MKN = 55°. What is m∠MCN?<br> !please no absurd answers!
    13·2 answers
  • Find the probability of rolling factors of 4 on both dice
    8·1 answer
  • Three coins are tossed. What is the probability that two land on heads?
    8·1 answer
  • Verify (a+b+c)^2=a^2+b^2+c^2+2ab+2bc+2ca<br> With the observation answer
    14·1 answer
  • Please help me asap!!!
    6·2 answers
  • Can you help me please it is my spring break packet
    7·1 answer
  • In the figure, m&lt;2=92 and m&lt;12=74. Find the measure of each angle. Tell which postulate (s) or theorem (s) you used.
    5·2 answers
  • I need help on this question, I can't seem to understand piecewise functions!! ITS SO HARD.​
    12·1 answer
  • Which expression is equivalent to the expression for the perimeter of the larger garden. Select all the apply.
    14·1 answer
  • Could someone help me please
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!