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viktelen [127]
3 years ago
9

PLEASE HELP WITH BOTH WILL CROWN BRAINLIEST !!!!

Mathematics
1 answer:
Korvikt [17]3 years ago
3 0
41) you have a 40 day period
two visits with +75 centimeter growth each
3 visits with +6 each
in total 2*75+3*6=150+18=168
divide this by 40 days to get the average: 168/40=4.2 centimeters per day or 1.65 inches/day

42)
7x total
3x20
2x15
1x13
1x16

if you order these into a list:
13,15,15,16,20,20,20

the median is the middle value, in this case 16$
the mode is the most common value: 20$ which exists 3 times
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3 years ago
Help please answer :(
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3 years ago
Which of the following geometric series converges?
Artist 52 [7]

All three series converge, so the answer is D.

The common ratios for each sequence are (I) -1/9, (II) -1/10, and (III) -1/3.

Consider a geometric sequence with the first term <em>a</em> and common ratio |<em>r</em>| < 1. Then the <em>n</em>-th partial sum (the sum of the first <em>n</em> terms) of the sequence is

S_n=a+ar+ar^2+\cdots+ar^{n-2}+ar^{n-1}

Multiply both sides by <em>r</em> :

rS_n=ar+ar^2+ar^3+\cdots+ar^{n-1}+ar^n

Subtract the latter sum from the first, which eliminates all but the first and last terms:

S_n-rS_n=a-ar^n

Solve for S_n:

(1-r)S_n=a(1-r^n)\implies S_n=\dfrac a{1-r}-\dfrac{ar^n}{1-r}

Then as gets arbitrarily large, the term r^n will converge to 0, leaving us with

S=\displaystyle\lim_{n\to\infty}S_n=\frac a{1-r}

So the given series converge to

(I) -243/(1 + 1/9) = -2187/10

(II) -1.1/(1 + 1/10) = -1

(III) 27/(1 + 1/3) = 18

8 0
3 years ago
What is the exact length of AB ?
Pachacha [2.7K]

Answer:

B

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Hope This Helps!!!

7 0
2 years ago
In the long run,A. the number of firms in the market is fixed.B. competitive firms' ATC curves shift upward or downward to ensur
Yuliya22 [10]

Answer:C. competitive firms' profits are zero.

Step-by-step explanation: Perfect competition is the highest level of competition where the number of buyers and sellers are large,all firms are price takers,no government intervention,the products are homogeneous,no firm makes extraordinary profits, there is free entry and exit for buyers and sellers etc.

IN THE LONG RUN A PERFECTLY COMPETITIVE FIRM MAKES ZERO PROFITS.

6 0
3 years ago
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