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antiseptic1488 [7]
3 years ago
6

My sis needs help what does 2 + 2 equal

Mathematics
2 answers:
dusya [7]3 years ago
8 0
Tell your sis that 2+2=4
Goryan [66]3 years ago
5 0
2+2= 4 
If you have 2 apples and you add 2 more you will have 4 if you add them up
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Represent the geometric series using the explicit formula.
user100 [1]

Answer:  f(n)=12(-3)^{(n-1)}

Step-by-step explanation:

The Explicit formula in function notation for a geometric series is:

f(n)=f(1)r^{(n-1)}

Where f(n) is the nth term of the sequence, f(1) is the first term in the sequence and r is the common ratio.

Given the following geometric serie:

12, -36, 108, -324...

The common ratio is:

r=\frac{-36}{12}=-3

And the first term is:

f(1)=12

Therefore, substituting values, we get that the Explicit formula that represents this geometric series is:

f(n)=12(-3)^{(n-1)}

3 0
4 years ago
Use the point-slope formula to write an equation of the line that passes through (6,23) and has a slope of m= 3. Write the answe
RSB [31]

y=3x+5

plug your coordinate points into the equation for slope (left corner or the paper)

multiply by the denominator on both sides of the equation

x-6 cancels out and leaves y-23=3(x-6)

multiply x and -6 by 3

add 23 to both sides to isolate y

hope this helps!

4 0
3 years ago
kelly plans to put her graduation money into an account and leave it there for 4 years while she goes to collge she recieves $75
DedPeter [7]

Answer:

FV=887.3967212 $

Step-by-step explanation:

Use the compound-interest formula:

FV=PV(1+\frac{r}{n}) ^{nt}

Where:

FV=Future value or the ending amount

PV=Present value or the initial amount=750

n=Number of compoundings in any one year=2

t=Total number of years=4

r=interest rate=0.0425

Now, replacing the data in the equation:

FV=750*(1+\frac{0.0425}{2}) ^{2*4} =887.3967212 $

4 0
3 years ago
Executives of a supermarket chain are interested in the amount of time that customers spend in the stores during shopping trips.
bazaltina [42]

The formula to calculate the sample size is:

n = Z number * standard deviation/ confidence estimate)^2

The z number for 95% confidence is 1.96

The standard deviation is given as 26 minutes.

The confidence estimate is given as 5 minutes.

The sample size is: (1.96 * 26/5)^2 = 103.87 = 104 shoppers.

3 0
3 years ago
Can someone help me
maw [93]
What is the objective? tell me and i can help :)
7 0
4 years ago
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