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
Olin [163]
3 years ago
9

Easy Math! Please give an explanation also if you can :)

Mathematics
2 answers:
Alborosie3 years ago
8 0

i don't know people are rude lol I tried at least

Alex3 years ago
8 0

Answer

15

Step-by-step explanation:

You might be interested in
Need help asap comment if you can help with all extra credit work will give up to 1k points
Yuri [45]

Answer:

<u>3</u>

Step-by-step explanation:

Radius of circle with center R : 2 units

Radius of circle with center R' : 6 units

Scale factor :

  • Radius of dilated circle /Radius of original circle
  • 6/2
  • <u>3</u>
8 0
2 years ago
Complete the square to make a perfect square trinomial. Then, write the result as a binomial squared. n^2+5/2n
Sergeeva-Olga [200]

Answer:  \bigg(n+\dfrac{5}{4}\bigg)^2

<u>Step-by-step explanation:</u>

n^2+\dfrac{5}{2}n+\underline{\qquad}\\\\\\n^2+\dfrac{5}{2}n+\bigg(\dfrac{5}{2\cdot 2}\bigg)^2\\\\\\n^2+\dfrac{5}{2}n+\bigg(\dfrac{5}{4}\bigg)^2\\\\\\=\bigg(n+\dfrac{5}{4}\bigg)^2

5 0
3 years ago
Suppose total benefits and total costs are given by b(y) = 100y − 8y2 and c(y) = 10y2. what is the maximum level of net benefits
olga nikolaevna [1]
Whenever you face the problem that deals with maxima or minima you should keep in mind that minima/maxima of a function is always a point where it's derivative is equal to zero.
To solve your problem we first need to find an equation of net benefits. Net benefits are expressed as a difference between total benefits and total cost. We can denote this function with B(y).

B(y)=b-c
B(y)=100y-18y²

Now that we have a net benefits function we need find it's derivate with respect to y.

\frac{dB(y)}{dy} =100-36y

Now we must find at which point this function is equal to zero.

0=100-36y
36y=100
y=2.8

Now that we know at which point our function reaches maxima we just plug that number back into our equation for net benefits and we get our answer.

B(2.8)=100(2.8)-18(2.8)²=138.88≈139.

One thing that always helps is to have your function graphed. It will give you a good insight into how your function behaves and allow you to identify minima/maxima points.


3 0
3 years ago
At PRMS, 25% of the 124 students Mrs. Pasternak teaches buy their lunches in the cafeteria. How many students buy their lunches
Ksju [112]
25% = 0.25
124 x 0.25 = 31

31 students bought their lunch.

Part = 31
Percent = 25%
Whole = 124

Hope this helps! ✨
6 0
3 years ago
Which expression is equivalent to (15²)(15^-7)?
Zanzabum

Answer:

there is no answer

Step-by-step explanation:

If you multiply 15^x by 15^y, the answer is 15^(x+y) so 2 plus -7 is negitive 5.

but there is no answer equal to this.

4 0
2 years ago
Other questions:
  • On Sunday, Antonio spent a total of 3 1/4 hours driving and 1 3/4 hours gardening. How much longer did he spend driving than gar
    10·1 answer
  • A football team gained 12 yards on one play, lost 40 yards on another, and gained 34 yards on the last play of the first half. T
    8·1 answer
  • A train is moving at uniform speed of 75km/hr.
    5·1 answer
  • What is 5 didvdied by 5836?
    7·2 answers
  • What digit is missing from the quotient?
    13·2 answers
  • Kim surveyed the students at her school to find out if they like hotdogs and/or burgers. The table below shows the results of th
    10·2 answers
  • Find the value of x.
    12·1 answer
  • a small gecko is 3/4 inch long. a larger gecko is 11 1/3 times as long. how long is the larger gecko?
    14·1 answer
  • What is the square root of -2x^2
    9·1 answer
  • What should I draw...... I’m bored<br><br> Examples:
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!