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
xeze [42]
3 years ago
7

Find the sum. 1/4 + 2/7 a. 9/14 b. 3/11 c. 15/28 d. 3/28

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
5 0
1/4 + 2/7 =

The denominators 4 and 7 lcm are 28

So,
1/28 + 2/28 = 3/28

3/28 is the answer to your question.
You might be interested in
What happens to the value of f(x) = log4^x as X approaches zero from the right
VARVARA [1.3K]

Answer: F(x) approaches - infinity

Step-by-step explanation:

6 0
3 years ago
Can someone explain what geometric sequences are?
Fed [463]

Explanation:

A sequence is a list of numbers.

A <em>geometric</em> sequence is a list of numbers such that the ratio of each number to the one before it is the same. The common ratio can be any non-zero value.

<u>Examples</u>

  • 1, 2, 4, 8, ... common ratio is 2
  • 27, 9, 3, 1, ... common ratio is 1/3
  • 6, -24, 96, -384, ... common ratio is -4

___

<u>General Term</u>

Terms of a sequence are numbered starting with 1. We sometimes use the symbol a(n) or an to refer to the n-th term. The general term of a geometric sequence, a(n), can be described by the formula ...

  a(n) = a(1)×r^(n-1) . . . . . n-th term of a geometric sequence

where a(1) is the first term, and r is the common ratio. The above example sequences have the formulas ...

  • a(n) = 2^(n -1)
  • a(n) = 27×(1/3)^(n -1)
  • a(n) = 6×(-4)^(n -1)

You can see that these formulas are exponential in nature.

__

<u>Sum of Terms</u>

Another useful formula for geometric sequences is the formula for the sum of n terms.

  S(n) = a(1)×(r^n -1)/(r -1) . . . . . sum of n terms of a geometric sequence

When |r| < 1, the sum converges as n approaches infinity. The infinite sum is ...

  S = a(1)/(1-r)

8 0
3 years ago
Using number line what is 4-5​
Vinil7 [7]

Answer:

<h2>-1</h2>

Step-by-step explanation:

4 - 5 = -1

Count:

4, 3, 2, 1, 0, <u>-1</u>

6 0
2 years ago
Let f(x)=2x+2. Solve f^-1(x) when x=4
Gre4nikov [31]
F⁻¹(x) stands for the invers of function f(x). The inverse of f(x) is equal to x. We need to solve for x.

solve for x
f(x) = 2x + 2
2x + 2 = f(x)
2x = f(x) - 2
  x = \dfrac{f(x)-2}{2}
f⁻¹(x) = \dfrac{x-2}{2}

Determine the value of f⁻¹(x) when x = 4
f⁻¹(x) = \dfrac{x-2}{2}
f⁻¹(4) = \dfrac{4-2}{2}
f⁻¹(4) = \dfrac{2}{2}
f⁻¹(4) = 1
When x = 4, the value of f⁻¹(x) is equal to 1
4 0
3 years ago
The Career Placement department at a university wants to administer a survey to determine student awareness of the resources off
Finger [1]

Answer:

stratified sample

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Tommy has a pet monkey every day his monkey eats 4 apples in the morning. The monkey also eats two bananas for every banana that
    7·2 answers
  • Whats the word phrase of 2(5-n)
    15·1 answer
  • A season pass to the local water park costs 84. If you go to the park ten times during the season, what is the unit rate of cost
    14·1 answer
  • Select Is a Function or is not a Function to correctly classify each relation.
    9·1 answer
  • 4p + 5c = p.<br> Solve for c
    8·2 answers
  • The distance from a point to two is five units. The point could be located at
    6·2 answers
  • Incorrect, 4.3.37
    6·2 answers
  • 7.) There are about 9,987,000 people that live in Michigan. How do you write
    14·1 answer
  • What phrase represents this expression x/3
    14·1 answer
  • I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!