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lianna [129]
2 years ago
13

Help me with this urgent due in 5 min​

Mathematics
1 answer:
solniwko [45]2 years ago
4 0

Answer:

The last option

Step-by-step explanation:

You might be interested in
What is the sum of the first 30 terms of the arithmetic series 27,32,37,42,47
AlladinOne [14]

Answer:

2985

Step-by-step explanation:

The formula for the sum of an arithmetic series is given by the formula:

S=\frac{k}{2}(a+x_k)

Where k is the number of terms, a is the first term, and x_k is the last term. In this case, the last term is the 30th term because we are finding the sum of the first 30 terms.

So, we need to find the 30th term. To do so, we can write an explicit formula for our sequence.

The standard form for an arithmetic sequence is given by the formula:

x_n=a+d(n-1)

Where a is the initial term and d is the common difference.

From our sequence, we can see that the initial term a is 27. The common difference is 5 because each term is 5 greater than the previous one.

So, our equation is:

x_n=27+5(n-1)

So, to find the 30th term, substitute 30 for n:

x_{30}=27+5(30-1)

Subtract:

x_{30}=27+5(29)

Multiply:

x_{30}=27+145

Add:

x_{30}=172

So, the 30th term is 172.

Now, substitute this into our original sum formula:

S=\frac{k}{2}(a+x_k)

Substitute 30 for k (the amount of terms), 27 for a (the first term), and 172 for x_k (the 30th and last term). So:

S=\frac{30}{2}(27+172)

Reduce and add:

S=15(199)

Multiply:

S=2985

So, the sum of the first 30 terms is 2985.

3 0
3 years ago
Is -3.16227766017 a rational or irrational number?
yaroslaw [1]

Answer:

Rational.

Step-by-step explanation:

It is rational because the digits did not go on forever.

3 0
3 years ago
Read 2 more answers
Correct answer gets brainliest
rosijanka [135]

Answer:

yea its 828

Step-by-step explanation:

Its alotta work that ion wanna type but that should b the answer

4 0
3 years ago
Write the equation of a line that contains (2,−2) and perpendicular to another line with slope −1. (20 POINTS)
Kay [80]
Y=mx+b or -2=-1 x 2+b, b= -2(-1)(2) b=0

Therefore the equation of the line is

y=-1x
8 0
2 years ago
How to find 36 is 22% of what number
Semmy [17]
Percent means parts out of 100 so
22%=22/100=0.22

'of' means multiply

'is' means =

36 is 22% of what
36=0.22 times what
divide both sides by 0.22
163.636363=what

the number is163.636363....
7 0
3 years ago
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