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
Flura [38]
3 years ago
7

Find the sum of the first 100 terms of the sequence below: -19, -15, -11, -7, -3, ... S100

Mathematics
1 answer:
ch4aika [34]3 years ago
5 0

Answer:

17900

Step-by-step explanation:

First term a = -19

common difference d = -15-(-19) = 4

number of terms, n = 100

sum of first 100 terms,

n/2(2a+(n-1)d)

= 100/2(2×(-19)+(100-1)4)

= 50×(-38+99×4)

= 50×358

= 17900

You might be interested in
A plane flies 640 mi with the wind in the same time that it takes to fly 440 mi against the wind. If this plane flies at the rat
777dan777 [17]

Answer:

what that this answer ⁉️

6 0
3 years ago
The volume of a cylinder is the base (B) times the length of its height (h).
levacccp [35]

Answer:

\text{The formula of a volume of a cylinder:}\\\\V=BH\\\\B-base\ area\\H-height\\\\\large\huge\boxed{\bold{B.\ V=Bh}}

5 0
3 years ago
Read 2 more answers
Sara ran 10km in 2.5 hours. Katerina ran 7.5 km in 2 hours. Candice ran 9.5 km in 2.25 hours. Who had the fastest average speed?
Arisa [49]

10 km ÷ 2.5 hours = 4 km/h — This is Sara's record

7.5 km ÷ 2 hours = 3.75 km/h — This is Katerina's record

9.5 km ÷ 2.25 hours = 4.2 km/h — This is Candice's record

Therefore, the answer is Candice had the fastest average speed.

6 0
3 years ago
What shape is the base? What is the area of the<br> base (B)?
VladimirAG [237]

Answer:

rectangular; 32 in²

Step-by-step explanation:

The base is rectangular, because 1 set of sides is longer than the other.

To find the area of the base, multiply 4 by 8 to get 32 in².

6 0
3 years ago
Please help me idk this
Pachacha [2.7K]

Answer:

x = 35 degrees

Step-by-step explanation:

the little box on the left side of the ttriangle means that is a 90 degrees angle.

So you add 55 + 90 = 145

Then subtract 180 - 145

which gives you 35

4 0
3 years ago
Read 2 more answers
Other questions:
  • Every five years in March, the population of a certain town is recorded. 1995 the town had a population of 4,500 people. From 19
    8·1 answer
  • 1. Amita wants to make a mold for a candle. She wants
    6·1 answer
  • drew a shopping on amazon.com on a Black Friday he purchased five DVDs all at the same price the tax on the purchase was 6 dolla
    13·2 answers
  • Help help help help what is the answer −5(4x−3)−x+5=190!!!
    11·1 answer
  • Jill is standing at the base of her apartment building. She measures the angle of elevation to the top of a nearby tower to be 4
    11·2 answers
  • Factorize using middle term:<br> m²+3m+2
    15·1 answer
  • Sara created the poster shown below What would be the dimensions of the poster at times its current size with:32 lenth:28
    15·1 answer
  • (01.02 LC)Simplify negative 4 and 1 over 4 − negative 9 and 1 over 2.?
    13·1 answer
  • I need help with this problem down below
    10·1 answer
  • The model represents the equation <br> 4x+ 4 = 12<br> What value of x makes the equation true
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!