Which formula can be used to describe the sequence?-3, 3/5, -3/25, 3/125, -3/625
A. f(x) = -3(1/5)^x-1
B. f(x) = -3(1/5)^x-1
C. f(x) = -1/5(3)^x-1
D. f(x) = -1/5(-3)^x-1
Answers
first term is -3
an=a1(r)^(n-1)
for a1=first term
r=common ratio
n=which term
in this case
first term=-3
common ratio is -1/5
so
none of them
oh, A and B are the same
the one that has the -1/5 inside is the one
The one that has the -1/5 inside is the one.
each term is multiplied by -1/5.
The first term is -3
What is the formula for the sequence?
for a_1=first term
r=common ratio
n=which term
In this case
The first term=-3
The common ratio is -1/5
so,
None of them A and B are the same
The one that has the -1/5 inside is the one.
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Answers
Answer:
The correct options are 2 and 5. The value of n is either -4 or 4.
Step-by-step explanation:
The given equation is
Using the property of exponent it can be written as
On comparing both the sides we get
Taking square root both the sides.
The value of n is either -4 or 4. Therefore the correct options are 2 and 5.
4^-2 = .0625 or 1/16
Answers
Answer:
7 m
Step-by-step explanation:
As the question is given, the tree is broken from the middle and the length of the broken part is:
- 14 m /2 = 7 m
So it is 7 m
Final answer:
To find the length of the broken part of the tree, use the concept of similar triangles and set up an equation. Solve the equation to find the length of the broken part.
Explanation:
To find the length of the broken part of the tree, we can use the concept of similar triangles. The height of the tree is 14m, and when it's broken, the top touches the ground, forming a right triangle with the remaining part of the tree. Let's call the length of the broken part x. Using the properties of similar triangles, we can set up the following equation:
14m / x = (14m - x) / x
Simplifying the equation, we get:
14m^2 - x^2 = 14m * x
Now, let's solve for x:
14m * x = 14m^2 - x^2
x^2 + 14m * x - 14m^2 = 0
This is a quadratic equation that can be factored:
(x - 14m)(x + m) = 0
So, x = 14m or x = -m. Since we are dealing with length, we can ignore the negative solution. Therefore, the length of the broken part of the tree is 14m.
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Answers
Where do they get the value for e? (2.718281828459)
Answers
y = 1/5x -2
Enter your math answer
Answers
Answers
Answer:
19° and 161°
Step-by-step explanation:
A - an angle
S - its suplementary angle
A = S - 142°
Suplementary angles add to 180° so:
A + S = 180°
S - 142° + S = 180°
2S = 322°
S = 161°
A = 161° - 142° = 19°