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3 years ago

PLEASE HELP .!!! ILL GIVE BRAINLIEST.. EXRTA POINTS .. DONT SKIP :(( ! ILL GIVE 40 POINTS .

Mathematics

2 answers:

emmainna [20.7K]3 years ago

8 0

Answer:

C. y = 2,463 - 234x

I think it's correct

RoseWind [281]3 years ago

5 0

Answer:

A ; y = 2229-x

Step-by-step explanation:

The question is asking for us to find how many seats are left that can be sold. There are 2463 total seats, 234 reserved seats, and x non-reserved seats.

If we subtract the 234 reserved seats from total seats, we will get 2229, the number of non-reserved seats and the not sold seats.

Since x is the non-reserved seats, we can subtract x from 2229 to get the number of seats that aren't sold.

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What is the sum of the geometric series

lbvjy [14]

If $S$ denotes the sum of the first $n$ terms of a geometric series with first term $a$ and common ratio $r$ , then

$S=a+ar+ar^2+\cdots+ar^{n-3}+ar^{n-2}+ar^{n-1}$
$rS=ar+ar^2+ar^3+\cdots+ar^{n-2}+ar^{n-1}+ar^n$
$\implies S-rS=a+(ar-ar)+(ar^2-ar^2)+\cdots+(ar^{n-1}-ar^{n-1})-ar^n$
$\implies (1-r)S=a(1-r^n)$
$\implies S=a=\dfrac{1-r^n}{1-r}$

Using summation notation, you have

$S=\displaystyle\sum_{x=1}^nar^{x-1}=\sum_{x=0}^{n-1}ar^x=a\dfrac{1-r^n}{1-r}$

In this case, you have $a=2$ , $r=\dfrac12$ , and $n=16$ . So the value of the sum is

$\displaystyle\sum_{x=0}^{15}2\left(\frac14\right)^x=2\dfrac{1-\left(\frac14\right)^{16}}{1-\frac14}\approx2.67$

Rounded to the nearest whole number, the answer would be 3.

4 0

4 years ago

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Please help<br><br> Which is the pair of congruent right angles?

Ket [755]

Answer:c.

Step-by-step explanation:

4 0

4 years ago

A bag contains 55 apples and 33 oranges. if you select 44 pieces of fruit without looking, how many ways can you get exactly 33

Ivahew [28]

Given that the bag contains 5 apples and 3 oranges, if you select 4 pieces of fruit without looking, the number of ways you can get 3 apples is given by:
we can select 3 apples in 5C3 ways but we are selecting 4 pices, this means that one orange can be selected in 3c1 ways. Using product rule, the total ways to select four pices is
5C3*3C1
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=120/(6×2!)*6/(2!)
=12×3
=36

3 0

4 years ago

Work out 3% of 860kg<br><br>need this asap!!!

eduard

Answer:

3% of (860 kilograms) =

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3 years ago

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Help me please I’m not good at math

Deffense [45]

Answer:

i think the answer is 7/4

6 0

3 years ago

PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( ! ILL GIVE 40 POINTS .

PLEASE HELP .!!! ILL GIVE BRAINLIEST.. EXRTA POINTS .. DONT SKIP :(( ! ILL GIVE 40 POINTS .