Answer:
In this case, you can use the concept of cosine to calculate y, and things are even easier when you have one of the special angles which is a 45° angle.
So we know that: cos45° = √2/2
This fact will always be true. In our case, we have:
cos45° = 7/y
Therefore, we have the equation:
7/y = √2/2
⇔ 14 = y√2
⇔ y = 14/√2
⇔ y = √196/√2 = √(196/2) = √98 = 7√2
So y is equal to 7√2
I’m not sure what 1. is sorry, but I think I know what 2 and 3 are.
2.) 120/1 x 3/4 because 3/4 is just the fraction form of 75%. Also 120/1 is just 120 as a fraction
3.) 1,200 x 0.03 because 0.03 is just the decimal form of 3%
Answer:
The choices you have selected are correct.
Step-by-step explanation:
2 to the power of 3 is just 2x2x2 which is also equal to 8.
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Answer:
Area=2232 square ft
Perimeter=206 ft
Step-by-step explanation:
given
the diagram is a rectangle
length=72 ft
width=31 ft
we know that
formula of the area of rectangle= length × width
Area=72×31 square ft
Area=2232 square ft
Now calculate the perimeter
perimeter of rectangle=2(length+width)
perimeter=2(72+31)
perimeter=2(103)
perimeter=206 ft
