9514 1404 393
Answer:
Step-by-step explanation:
a) The fraction is ...
2(5 1/4)/(15 2/3) = (21/2)/(47/3) = 63/94
Two streamers will require 63/94 of the original material.
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b) $4800 is 70% of Sara's salary, so that salary is ...
4800 = 0.70s
4800/0.70 = s = 6857.14
Sara's salary is about $6857.14.
Answer:
yes
Step-by-step explanation:
I'm going to give you a slightly different answer, but it's going to make sense :-)
First, let's review what "sin" and "cos" really mean. They are functions that take as an input an angle, which we call theta. They output the base (cos) and height (sin) of a triangle which as a hypotenuse of length 1.
Now, let's pick some examples. If we happen to set theta to 45 degress, you will get a triangle that looks like this:
In this case, both sin(theta) and cos(theta) are the same number, the square root of 1/2. So cos(theta) + cos (theta) is 2 times the square tool of 1/2.
Now imagine that we now want to find cos (theta + theta). Remember that theta was 45 degrees, so this will be cos (45 + 45), or cos (90).
But remember that cos is the base of a triangle where theta is the angle with the base. Well, that's not a triangle at all, is it? It's just a vertical line. In fact, cos(90) will be zero.
Answer:
0.88%y + 0.03%
Step-by-step explanation:
if it's 12% then: she's actually paid 88% with a tax of 3%.
Answer:
1st answer is 108
Step-by-step explanation:
108 is equivalent to 54 because 10 x 4 = 8 x 5 = 40. 1512 is equivalent to 54 because 15 x 4 = 12 x 5 = 60. 2016 is equivalent to 54 because 20 x 4 = 16 x 5 = 80
1 L = 1 dm³
1 m = 10 dm
(1 m)³ = (10 dm)³ ------> 1m³ = 1000 dm³ ------> 1m³ = 1000L
44 L *(1 m³/1000 L) = 0.044 m³
Answer is 0.044 m³.
