<span>[4b-4]+3-b^2]+2b^3 ;b=2
= </span><span>[4(2)-4]+3-2^2]+2(2^3)
=</span> [8-4] + 3 - 4]+2(8)
= [4 + 3 - 4]+2(8)
=3 + 16
=19
answer is <span>A. 19</span>
Answer:
1.1×10^-4
Step-by-step explanation:
we move the point from where to in between 1.1 and counts the number of numbers it has crossed..in this case it 4...which should be -4
You have that:
- 1,395,000 is the 100%.
- Air force=350,000
1,395,000----100%.
350,000-----x
x=350,000x100/1,395,000
x=25.1%
The Air force represents 25.1%
- Army=502,000
1,395,000----100%.
502,000-----x
x=502,000x100/1,395,000
x=36%
The Army represents 36%
- Navy=348,000
1,3395,000----100%.
348,000-----x
x=348,000x100/1,395,000
x=24.9%
The Navy represents 24.9%
- Marines=195,000
1,3395,000----100%.
195,000-----x
x=195,000x100/1,395,000
x=14%
The Marines represents 14%
Start by finding the interior angles based on the two given angle measures:
121 + x = 180
x = 59 (subtract 121 from both sides)
so the interior angle at the top is 59
144 + y = 180
y = 36 (subtract 144 from both sides)
so the interior angle on the right is 36
Now, all three angles of a triangle must have a sum of 180, so
x + y + z = 180
59 + 36 + z = 180 (substitute the two interior angle measures into the equation)
95 + z = 180 (simplify the equation)
z = 85 (subtract 95 from both sides)
Now that we know the interior adjacent angle is 85, we can find the exterior angle (n)
n + 85 = 180
n = 95 (subtract 85 from both sides)
so, n= 95 degrees
Discriminant is b^2 -4ac. So it’s (10)^2 - 4 (-4)(-8) = 100 + 128 = 228. When the discriminant is greater than 0 and not a perfect square you have 2 real irrational roots.