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
Musya8 [376]
3 years ago
14

What is the sum of the first 14 terms of the sequence : an=6n-12

Mathematics
1 answer:
Gemiola [76]3 years ago
5 0
A1=6*1-12=-6   arithmetic sequence 
a14=6*14-12=72
sum =n(a(1)+a(n))/2
sum =14*(-6+72)/2=462
You might be interested in
What is the area of that shaded sector?
melomori [17]

Answer:

50.24

Step-by-step explanation:

1/4x3.14xr^2

r=16 because of the length

90/360= 1/4

so

1/4x3.14x16^2/4

=50.24

4 is our denominator because of the denominator on the fraction

4 0
3 years ago
Consider the substances below.
NikAS [45]
They have different masses
5 0
1 year ago
Plz i need help walk me through it, thanks​
SVETLANKA909090 [29]

Answer:

p=36^{\circ}

Step-by-step explanation:

We can prove that a tangent will always be perpendicular to the radius touching it. So, the other angle in the diagram is 90^{\circ}.

Because all the angles of a triangle sum to 180^{\circ}, we have that p+54+90=180.

We combine like terms on the left side to get p+144=180.

We subtract 144 on both sides to get p=36.

So, \boxed{p=36^{\circ}} and we're done!

6 0
3 years ago
Can someone please solve this for me
Savatey [412]

Answer:

m<JKD = 22 degrees

Step-by-step explanation:

21x + 5 + 4x + 2 = 132

25x + 7 = 132

25x = 125

x = 5

m<JKD = 4x + 2

4(5) + 2

20 + 2

22

5 0
3 years ago
Read 2 more answers
Your hands are slow,
Aleks [24]

Answer:

whats the question?

Step-by-step explanation:

have a good day!!!  

(PS or is this just a tip?)

3 0
3 years ago
Read 2 more answers
Other questions:
  • The sum of four consecutive integers is 286. Find the four integers
    7·1 answer
  • La
    14·1 answer
  • Calculate circumstance of the circle. Use =3.14
    13·2 answers
  • Convert 123 percent into fraction​
    14·2 answers
  • An item is regularly priced at $80 Barbado add a discount of 25% off the regular price how much did Bob pay
    6·1 answer
  • lINE AB is formed by A(-10, 3) and B(2, 7). If line l is the PERPENDICULAR BISECTOR of line AB, write the equation of line l in
    11·1 answer
  • I’ll give u brainliest please help asap
    11·2 answers
  • Can someone help me out. Paying big points
    15·1 answer
  • Please help. I got the 12 part can’t can’t seem to simplify the fraction bit.
    11·1 answer
  • The three angles of a triangle are presented as the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!