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satela [25.4K]
4 years ago
10

How do I begin this equation

Mathematics
1 answer:
alex41 [277]4 years ago
5 0
Trigonometry:
We know that   csc x = 1 / sin x    and π = 180°;
sin 5π/ 6 = sin 150° = 1/2
csc 2π / 3 = 1 / sin 120° = 1 / √3/2 = 2 / √3
Finally:
4 · 1/2 + 7 · ( 2 / √3 )² = 2 + 7 · 4/3 = 
= 2 + 28/3 = 2 + 9 1/3 =  11  1/3
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it took 3hour and 28 minutes to run 26miles. how many minutes did it take her to run 1 mile if she ran the same rate for the who
wolverine [178]
In order to solve this we can first convert 3h 28m to 208 minutes.
This will make it so we can find how many minutes it took her to run per mile.
The way we do that is by dividing 208 by 26. This leaves us with 8 minutes per mile.

Hope this helped at least a bit!
<3
6 0
3 years ago
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Question 5<br> Find the sum of the following geometric series.<br> 8+1.6+0.32+0.064 + ...
boyakko [2]

good morning,

Answer:

10×(1-0.2ⁿ)

Step-by-step explanation:

1.6/8=0.2

0.32/1.6=0.2

0.064/0.32=0.2

let S represent the sum of n term then S=8×[(1-0.2ⁿ)/(1-0.2)] = 10×(1-0.2ⁿ).

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5 0
3 years ago
What’s the difference between 5 and 4.73?
natka813 [3]

Answer:

0.27

Step-by-step explanation:

4 0
3 years ago
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Find the total surface area of the cone in the figure. ( use rr=3.14.)
nikitadnepr [17]

Answer:

Answer D

Step-by-step explanation:

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4 0
3 years ago
Polygon ABCD has sides with these lengths: , 5 units; , 4 units; , 4.5 units; and , 7 units. The slope of is 5, the slope of is
Dahasolnce [82]
Well, you can start by putting the slopes and lengths on the right side (Where is says slope of A'B'). The slopes will be the same, so Slope of AB is still 5 and Slope of BC is still 0.25. When you get to the lengths, just multiply it by 1.2. The length for Length of CD is 5.4 and Length of AD is 8.4

Here's what it should look like:
Slope of A'B' ⇔ 5
Slope of B'C' ⇔ 0.25
Length of C'D' ⇔ 5.4
Length of A'D' ⇔ 8.4
3 0
3 years ago
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