Answer:
n=30
Step-by-step explanation:
1/4(n+2)=8
1/4n+2/4=8
1/4n+2/4-2/4=8-2/4=7 2/4
1/4n=7 2/4
1/4n (4)=7 2/4 x (4)
n=29+2=30
Answer:
26,812 ft
Step-by-step explanation:
The drawing given is very helpful in this case. When solving problems like this, it's important to realize what trigonometric ratio we're going to use. From the given angle (50°), we are given the hypotenuse (35,000 ft) and we're trying to solve for the opposite side (
).
So since we're trying to find the opposite side side and we have the hypotenuse, we should try to find a trigonmetric ratio between the opposite side and the hypotenuse. Using SOH-CAH-TOA, hopefully you can see that we should pick SOH (i.e.
). Therefore, we can set up our equation given the angle
.
![\sin(50^\circ)=\frac{a}{35000}](https://tex.z-dn.net/?f=%5Csin%2850%5E%5Ccirc%29%3D%5Cfrac%7Ba%7D%7B35000%7D)
Since we're solving for
, we can just rearrange to get ![a=35000\sin(50^\circ)=26812](https://tex.z-dn.net/?f=a%3D35000%5Csin%2850%5E%5Ccirc%29%3D26812)
Therefore, the plane's altitude
is 26,812 ft.
Answer:
First statement is wrong
Step-by-step explanation:
Forgive me if I am wrong
Answer:
Step-by-step explanation:
4*2=8, thats one rectangle (side)
8*2 is 16, thats TWO rectangles (sides)
7*4=28, thats one rectangle (front)
28*2=56, thats TWO rectangles (front and back)
7*2=14, thats one rectangle (top)
14*2=28, thats TWO rectangles (top and bottom)
add all of these surface areas together
TWO rectangles + TWO rectangles + TWO rectangles
28+56+16=100
As you can see, the 60cm2 is incorrect. 100cm2 is the real surface area of the shape