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
weqwewe [10]
3 years ago
6

Evaluate the summation of 2n+5 from n=1 to 12 29 36 216 432

Mathematics
1 answer:
rewona [7]3 years ago
3 0
\bf \sum\limits_{n=1}^{12}\ 2n+5\implies \sum\limits_{n=1}^{12}\ 2n+\sum\limits_{n=1}^{12}\ 5\implies 2\sum\limits_{n=1}^{12}\ n+\sum\limits_{n=1}^{12}\ 5
\\\\\\
2\cdot \cfrac{12(12+1)}{2}+(12\cdot 5)\implies 156+60\implies 216
You might be interested in
A road has a scale of 1:50 000 The length of a road on the map is 8.5cm.Work out the length of the real road in kilometres
uranmaximum [27]

The answer is 2.1 Km. Hope this helps!

5 0
3 years ago
12. The ratio of clown fish to angelfish at a pet store is 5:4. The ratio of
777dan777 [17]

Answer:

a. There are 48 angelfish.

b. There are 36 goldfish.

Step-by-step explanation:

the ration of clownfish to angelfish is 5:4 and there are 60 clownfish.

60:? 5x=60 x=12 12(4)=48

60:48 there are 48 angelfish

the ration of angelfish to goldfish is 4:3 and know we know there are 48 angelfish

48:? 4x=48 x=12 12(3)=36

48:36 there are 36 goldfish

4 0
3 years ago
Read 2 more answers
A warehouse floor has a perimeter of 6,615 feet what is the perimeter of the floor in yards
worty [1.4K]

Answer:

1xgr7`0ryu932

Step-by-step explanation:

6 0
3 years ago
The mean is μ = 15.2 and the standard deviation is σ = 0.9. find the probability that x is greater than 17.
Vlad1618 [11]
The probability that x >17 will be found as follows:
the z-score is given by:
z=(17-15.2)/0.9=2
Thus
P(X>17)=1-P(x<17)=P-(z=2)
=1-0.9772
=0.0228

8 0
3 years ago
Read 2 more answers
you plan to go snowboarding this weekend in Pennsylvania. the resort charges $15.75 per hour in addition to a $25 deposit to ren
Ulleksa [173]

Answer:

A. Equation is c=25+15.75x

B. Cost is $88


Step-by-step explanation:

A)

Suppose you rent for x hours and each hour costs $15.75

<u><em>How much would you need to pay?</em></u>

15.75x

Moreover, there is a $25 dollar (fixed) deposit for renting, so that gets added to your payment. All in all, you have to pay 25+15.75x

This is the equation of renting a snowboard for x hours.

Equation is c=25+15.75x

  • Where x is the number of hours you rent the snowboard, and
  • c is the total cost

B)

If you are renting from 8.30 to 12.30, you are basically renting for 4 hours.

To know how much it will cost, you simply plug in 4 into x (in the equation):

c=25+15.75x\\c=25+15.75(4)\\c=88

Cost is $88

6 0
3 years ago
Other questions:
  • A car can travel 476 miles on 14 gallons of gas. Write an equation relating the distance d to the number of gallons g. How many
    14·1 answer
  • What is infinity + infinity
    7·2 answers
  • 7x + 3 (5x + 9) = 247
    6·1 answer
  • I CANT FIGURE OUT HELP ME!!! SOLVE FOR W: −(14w+8)+8=3<br><br>IM GIVING MAX POINTS I CAN!!!!!
    9·2 answers
  • Compare using &lt; or &gt; 8.86_ 8.65​
    14·1 answer
  • Number 5 a b c plzzzzz
    13·1 answer
  • What all is equivalent to 7:5
    13·1 answer
  • The alphabet game costs $.25 to play. Before the game, 26 slips of paper with a different letter of the alphabet on it are put i
    13·1 answer
  • A cone has a height of 12 inches and a radius of 12 inches. What is its volume.
    13·1 answer
  • I’ll give brainliest!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!