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Answer: The wingspan is 36 m.
Using a proportion to solve this, we write the scale factor as a ratio first: 19/38, since 19 is the size of the model's length and 38 is the real length. For the second ratio, we have 18 for the size of the model wingspan and x for the real wingspan:
19/38 = 18/x
Cross multiply:
19*x = 38*18
19x = 684
Answer:
use this
Step-by-step explanation:
velocity = distance / time…. So distance = velocity x time
Answer:
The value of x for the given expression is 
Step-by-step explanation:
Given as :
<u>The expression is written </u>
3
- 1
× x = 1
Or, 1 × x = 3 - 1
Or, 
× x = 
- 1
Or, 
× x = 
- 1
Or, × x = 
Or, × x = 
∴ x = 
Or, x = 
I.e x =
So, The value of x =
Hence The value of x for the given expression is Answer
<h3>
Answer: B) Only the first equation is an identity</h3>
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I'm using x in place of theta. For each equation, I'm only altering the left hand side.
Part 1
cos(270+x) = sin(x)
cos(270)cos(x) - sin(270)sin(x) = sin(x)
0*cos(x) - (-1)*sin(x) = sin(x)
0 + sin(x) = sin(x)
sin(x) = sin(x) ... equation is true
Identity is confirmed
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Part 2
sin(270+x) = -sin(x)
sin(270)cos(x) + cos(270)sin(x) = -sin(x)
-1*cos(x) + 0*sin(x) = -sin(x)
-cos(x) = -sin(x)
We don't have an identity. If the right hand side was -cos(x), instead of -sin(x), then we would have an identity.
