You multiply -4 to everything inside of the parenthesis which is 20w+12u-8
Answer:
Saw this question before. The answer is Anita' square.
Square has only four sides while the others more than four so make sense for the square to have longer sides
Answer:
The value of angle is 56.9°
Step-by-step explanation:
First, you have to find the length of hypotenuse using Pythagoras' Theorem, c² = a² + b² :
![{c}^{2} = {a}^{2} + {b}^{2}](https://tex.z-dn.net/?f=%20%7Bc%7D%5E%7B2%7D%20%20%3D%20%20%7Ba%7D%5E%7B2%7D%20%20%2B%20%20%7Bb%7D%5E%7B2%7D%20)
![let \: a = 8.25 \\ let \: b = 6.45](https://tex.z-dn.net/?f=let%20%5C%3A%20a%20%3D%208.25%20%5C%5C%20let%20%5C%3A%20b%20%3D%206.45)
![{c}^{2} = {8.25}^{2} + {6.45}^{2}](https://tex.z-dn.net/?f=%20%7Bc%7D%5E%7B2%7D%20%20%3D%20%20%7B8.25%7D%5E%7B2%7D%20%20%2B%20%20%7B6.45%7D%5E%7B2%7D%20)
![{c}^{2} = 68.0625 + 41.6025](https://tex.z-dn.net/?f=%20%7Bc%7D%5E%7B2%7D%20%20%3D%2068.0625%20%2B%2041.6025)
![{c}^{2} = 109.665](https://tex.z-dn.net/?f=%20%7Bc%7D%5E%7B2%7D%20%20%3D%20109.665)
![c = \sqrt{109.665}](https://tex.z-dn.net/?f=c%20%3D%20%20%5Csqrt%7B109.665%7D%20)
![c = 10.47cm \: (4s.f)](https://tex.z-dn.net/?f=c%20%3D%2010.47cm%20%5C%3A%20%284s.f%29)
In order to find θ, you have to apply Sine Rule :
![\sin(θ) = \frac{opposite}{adjacent}](https://tex.z-dn.net/?f=%20%5Csin%28%CE%B8%29%20%20%3D%20%20%5Cfrac%7Bopposite%7D%7Badjacent%7D%20)
![let \: oppo. = 8.77 \\ let \: hypo. = 10.47](https://tex.z-dn.net/?f=let%20%5C%3A%20oppo.%20%3D%208.77%20%5C%5C%20let%20%5C%3A%20hypo.%20%3D%2010.47)
![\sin(θ) = \frac{8.77}{10.47}](https://tex.z-dn.net/?f=%20%5Csin%28%CE%B8%29%20%20%3D%20%20%5Cfrac%7B8.77%7D%7B10.47%7D%20)
![θ = { \sin( \frac{8.77}{10.47} ) }^{ - 1}](https://tex.z-dn.net/?f=%CE%B8%20%3D%20%20%7B%20%5Csin%28%20%5Cfrac%7B8.77%7D%7B10.47%7D%20%29%20%7D%5E%7B%20-%201%7D%20)
![θ = 56.9 \: (1d.p)](https://tex.z-dn.net/?f=%CE%B8%20%3D%2056.9%20%5C%3A%20%281d.p%29)
Answer: Infinite solutions
Step 1: Turn this into y=Mx+b form
The current equation is—
-2x+5y=30
Since we want to get y alone on the left side, let’s add 2x on both sides
-2x+5y=30
+2x +2x
____________
5y=2x+30
Step 2: Again, trying to get y alone, we need to divide 5 on both sides
5y=2x+30
/5 /5 /5
________
y=2/5x+6
Step 3: Now that we know how to find y, substitute that in where y is in the equation
-2x + 5(2/5x+6) = 30
-2x + 2x + 30 = 30
30=30
Seeing that you cannot get a specific answer for y when solving, there is an infinite number of solutions
Hope this is right and it helps comment below for more questions :)
Answer:
61.90
Step-by-step explanation:
12.2+14+14+6=46.2
of semi circle
circumference of semi circle =
d
x10 = 10![\pi](https://tex.z-dn.net/?f=%5Cpi)
semi circle so divide by 2 = 5![\pi](https://tex.z-dn.net/?f=%5Cpi)
5
= 15.7
46.2 + 15.7 = 61.9