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
alexira [117]
3 years ago
5

Find the sum of the arithmetic sequence. -10,-7,-4,-1,2,5,8

Mathematics
1 answer:
Kazeer [188]3 years ago
6 0

Answer:

example

Find the 21st term of: 2,8,14,20

a1=2

d=6

n=21

a21= 2+ (21-1)6

a21= 2+ (20)6

a21= 2+120

a21= 122

You might be interested in
6.48> 6.4_1> 6.470 whats the unknown digit to make the statement true
Triss [41]
The unknown digit is 7 because 6.471 is greater than 6.470 and less than 6.48.
8 0
3 years ago
To the nearest millimeter, a cell phone is 105 mm long and 66 mm wide. What is the ratio of the width to the length?
makvit [3.9K]

Answer:

22:35

Step-by-step explanation:

Find the GCD (or HCF) of numerator and denominator

GCD of 66 and 105 is 3

Divide both the numerator and denominator by the GCD

66 ÷ 3/105 ÷ 3

Reduced fraction:

22/35

therefore the ratio will be 22:35

3 0
3 years ago
Please help me out solve it and tell me how you got that answer so I can understand please!
NikAS [45]

The solution for s in the given equation is s = C-nD

The question seems to be incomplete

Here is the complete question:

Solve for s in this equation D= \frac{C-s}{n}   Depreciation.

To solve for s, that means we should make s the subject of the equation

From the given equation,

D= \frac{C-s}{n}

To solve for s, first multiply both sides by n to clear the fraction

We get

n\times D= n \times \frac{C-s}{n}

Then,

nD = C - s

Now, add s to both sides

nD + s= C - s+s

nD+s = C

Then, subtract nD from both sides

nD-nD+s = C-nD

∴ s = C-nD

Hence, the solution for s in the given equation is s = C-nD

Learn more here: brainly.com/question/21406377

6 0
3 years ago
How do you find deviation and standard deviation
AveGali [126]

Answer: The standard deviation formula may look confusing, but it will make sense after we break it down. ...

Step 1: Find the mean.

Step 2: For each data point, find the square of its distance to the mean.

Step 3: Sum the values from Step 2.

Step 4: Divide by the number of data points.

Step 5: Take the square root.

Step-by-step explanation:

6 0
2 years ago
If 1/6 of the books in the library are cookbooks and 2/5 of the cookbooks are vegetarian cookbooks what fraction of the books in
Serga [27]

Answer:

A. 1/30 of the cookbook

8 0
3 years ago
Read 2 more answers
Other questions:
  • Please assist on two questions, is offering 30+ points!
    7·1 answer
  • Choose the linear inequality that describes each graph.
    14·1 answer
  • How do I find JN in this problem?
    14·1 answer
  • How do I solve 1.06g-7=0.95
    7·1 answer
  • Please help me on this
    7·2 answers
  • The volume of a sphere is increasing at a rate of 7 cm3/sec. Find the rate of change of its surface area when its volume is cm3.
    5·1 answer
  • According to Greg, perfect cherry pies have a ratio of 210 cherries to 3 pies
    13·1 answer
  • Jenson needs to create a graph using the data he collected from the baseball tournament over the weekend. Jenson must create a g
    11·1 answer
  • There are 23 pastries. They need to be shared equally between 7 people. How many pastries does each person get? Write your answe
    6·1 answer
  • A ship leaves port at 1 pm traveling north at the speed of 30 miles/hour .at 3 pm the ship adjusts its course20° eastward. Sketc
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!