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3 years ago

9

The wings of a ruby-throated hummingbird beat an average of 52 times per second. About how many times will it's wings beat in on

e minute?

1 answer:

tangare [24]3 years ago

6 0

Answer:

3120

Step-by-step explanation:

Multiply 52 by 60 and it equals 3120

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Question 6 of 10

AysviL [449]

B and C; as the y intercept increases/decreases, the graph of the line shifts up/down.

The y intercept is where the function crosses the y-axis. If the y intercept moves either up or down, the whole function will be translated up/down vertically along the y-axis.

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2 years ago

Geometric Series assistance

Levart [38]

we have been asked to find the sum of the series

$\sum _{n=1}^5\left(\frac{1}{3}\right)^{n-1}$

As we know that a geometric series has a constant ratio "r" and it is defined as

$r=\frac{a_{n+1}}{a_n}=\frac{\left(\frac{1}{3}\right)^{\left(n+1\right)-1}}{\left(\frac{1}{3}\right)^{n-1}}=\frac{1}{3}$

The first term of the series is $a_1=\left(\frac{1}{3}\right)^{1-1}=1$

Geometric series sum formula is

$S_n=a_1\frac{1-r^n}{1-r}$

Plugin the values we get

$S_5=1\cdot \frac{1-\left(\frac{1}{3}\right)^5}{1-\frac{1}{3}}$

On simplification we get

$S_5=\frac{121}{81}$

Hence the sum of the given series is $\frac{121}{81}$

5 0

3 years ago

This was due yesterday please help

Marianna [84]

Answer: 2.1925153x10 to the 3rd

Step-by-step explanation: hope it helps

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2 years ago

Rachel has already written 10 pages, and she expects to write 1 page for every additional hour spent writing. How many hours wil

vlada-n [284]

Answer:

27?

Step-by-step explanation:

because 1 page per 1 hour leads up to 27 hours for 27 pages. Or if your not counting the 10 pages she has already written, she spent 17 hours.

4 0

3 years ago

HELP ME WITH THIS IM DESPERATE!

Oliga [24]

Answer:

i dont know but i think its 50

Step-by-step explanation:

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2 years ago

Read 2 more answers