Sin 3pi/4 is angle 135 degrees or 45 degrees below 180 degrees. Hence it's opposite side is 1 and adjacent is 1, implying the hypothenus is sqrt(2). Hence
Sin 3pi/4 = 1/sqrt(2). Now multiply by sqrt(2)/sqrt(2) to get:
[1/sqrt(2).] * [sqrt(2)/sqrt(2)] = sqrt2)/2
Answer:
The width is 20 ft and the length is 80 ft
Step-by-step explanation:
Area = l * w
l = w +60
SA = 1600 ft^2 ( which is the regular area) The surface area of the water is just what is on top which is length times width
1600 = l*w
Substitute in l = w+60
1600 = (w+60) *w
Distribute the w
1600 = w^2 +60w
Subtract 1600 from each side
1600-1600 = w^2 + 60w -1600
0 = w^2 + 60w -1600
Factor
0=(w-20) (w+80)
Using the zero product property
w-20=0 w+80 =0
w=20 or w=-80
The width cannot be negative so
w=20
Now we need to find the length
l = w+60
l = 60+20
l =80
Answer:
<u>C) 2parts that are one eight each.</u>
Step-by-step explanation:
The reason I chose <u>C)</u> as the correct answer is becasue I evaluated it with the steps below.
A) - 8 parts that are one fourth each.
<u>This cannot be correct because it would surpase the 2/8ths (would be over).</u>
B) - 4 parts that are one-half each.
<u>This cannot be correct because it would surpass the 2/8ths (would be over).</u>
C) - 2parts that are one eight each.
<u>This can be correct because 2 parts have 1/8th. 1/8 + 1/8 = 2/8.</u>
D) - 2parts that are one fourth each.
This cannot be correct because the denominator is not 8, it is 4 meaning it wouldn't fit into the format the question asked for (which was 2/8).
<u>This makes the correct answer C).</u>
<u></u>
I hope this helps you understand and helps you in your question.
Answer:
11x - 10
Step-by-step explanation:
ab is half the line and bc is the other half
so if you add them together that should be the answer.
6x - 7 + 5x - 3
11x - 10
Answer:
Its D. d
Step-by-step explanation:
I believe someone else said this same thing but I'll explain it a bit differently and more in-depth.
There is this common formula that's used a lot, it's r*t=d, rate * time = distance. In this formula, we see that distance is represented as d, so we can assume that in this scenario, the distance will also be represented by d.
When doing math, you're going to wanna make the variables simple and understandable, say you're doing a coin problem with nickels and dimes, you're going to wanna label your variables for nickels "n" and your variables for dimes "d" just so you don't get confused.
Now if you have another problem like this, you don't even have to ask brainly, you can just make an educated guess like this.
