<span>I think it's right. A. ZY=VZ</span>
Answer:
because it voted to be independent from america
Step-by-step explanation:
Answer:
That exterior angle is equal to 87 degrees.
Step-by-step explanation:
In order to find the measure of the exterior angle, we start by trying to find x. We can do this by adding up the 3 interior angles and setting them equal to 180. The first angle is equal to 43. The second angle is equal to x + 15. The third angle is equal to 180 - 3x (which we know because the angle and 3x is equal to 180). So we set equal to 180.
43 + (x + 15) + (180 - 3x) = 180 ----> Combine like terms.
238 - 2x = 180 -----> Subtract 238
-2x = -58 ----> Divide by -2
x = 29
Now that we have the x value, we can plug into the exterior angle measure to get the value.
3x = 3(29) = 87 degrees
Answer:
<h3>
m∠A = 46°</h3>
Step-by-step explanation:
∠A and∠B being complementary means m∠A+m∠B=90°
m∠A = (4x+6)° and m∠B = (4x+4)°
so:
4x+6 + 4x+4 = 90
8x + 10 = 90
8x = 80
x = 10
m∠A = (4•10+6)° = 46°
Answer:
steps below
Step-by-step explanation:
f(x) = 5x³ - x² - 5x + 1
Local extremes: 15x²-2x-5=0 .. gradient=0
x = (2 ± √2²-4*(15)*(-5)) / (2*15)
= (2 ± √304) / 30
= (2 ± 4√19) / 30
= (1 ± 2√19) / 15
= (1 ± 8.718) / 15
local maximum: (1 + 8.718) / 15 = 0.648
local minimum: (1 - 8.718) / 15 = - 0.515
the interval(s) where the graph is increasing: x < - 0.515 or x > 0.648
the interval(s) where the graph is decreasing: - 0.515 < x < 0.648
