The answer is b
Its b because you distributed
4(4a+5)
You multiplied 4x4a and you got
16a+4(5)
Which 4x5 is 20
So its 16a+20
Answer:
x = 23
Obtuse scalane triangle
Step-by-step explanation:
The sum of interior angles in a triangle is equal to 180
110+35+x+12 = 180
157 + x = 180 subtract x from both sides
x = 23
The given triangle is an obtuse scalane because it has no eqaual side lengths or angles measurment.
Use quadratic formula since we can't factor
for 0=ax²+bx+c
![x= \frac{-b+/-\sqrt{b^2-4ac}}{2a}](https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B-b%2B%2F-%5Csqrt%7Bb%5E2-4ac%7D%7D%7B2a%7D)
so, for
0=1x²-6x-4
a=1
b=-6
c=-4
![x= \frac{-(-6)+/-\sqrt{(-6)^2-4(1)(-4)}}{2(1)}](https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B-%28-6%29%2B%2F-%5Csqrt%7B%28-6%29%5E2-4%281%29%28-4%29%7D%7D%7B2%281%29%7D)
![x= \frac{6+/-\sqrt{36+16}}{2}](https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B6%2B%2F-%5Csqrt%7B36%2B16%7D%7D%7B2%7D)
![x= \frac{6+/-\sqrt{52}}{2}](https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B6%2B%2F-%5Csqrt%7B52%7D%7D%7B2%7D)
![x= \frac{6+/-2\sqrt{13}}{2}](https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B6%2B%2F-2%5Csqrt%7B13%7D%7D%7B2%7D)
![x= 3+/-\sqrt{13}](https://tex.z-dn.net/?f=x%3D%203%2B%2F-%5Csqrt%7B13%7D)
the solutions are x=3+√13 and x=3-√13
or aprox
x≈6.61 and x≈-0.61
1.16 but I think you would have to put 1.20 I am not sure, but hoped this sorta kinda helped.
There are 27000 possible combinations
when combining 2 or more separate possible outcomes in which numbers can be repeated, you multiply each possibility together. Each of the 3 dials has 30 possible positions on its own, so the number of combinations for all three is:
30 × 30 × 30 = 27000