Answer:
4
Step-by-step explanation: Its 4 becuase you plug in the zero like this'
f(x)=4-5(0)
f(0)=4-0
f(0)=4
So it will (0,4)
Answer:
m<EBD = 130 degrees
Step-by-step explanation:
We can say that Line EC is bisected by Line AD at point B. The angle CBD = 50 degrees is a supplement of the bisected line EC. With this in mind we can say:
EBD + CBD = 180
And we can solve for EBD:
EBD + CBD = 180
EBD + 50 = 180
EBD = 130
So the measure of angle EBD is 130 degrees.
Cheers.
You can use the Law of Sines for this problem, but what makes it tough at first glance is that they put a step in before you can use it directly. That first step is to get m∠C. When solving a triangle, always get the third angle if you know the other two so that you can use the Law of Sines (or Law of Cosines) more directly.
The sum of the angles of any triangles is 180°. We know the measures of the two other angles. So we subtract them from 180° to find that third angle.
180° - 76° - 66° = 38°
Now we can use the proportion from the picture. Angle B measures 76°, side b is our unknown, Angle C measures 38°, and side c measures 3 units.
sin 76° sin 38°
----------- = -----------
b 3
Cross multiply to find b (the side). We carry out five places in these calculations to get more accuracy.
3 * sin 76° = b * sin 38°
b = 3 * sin 76° 3 * 0.56611 1.69832
--------------- = --------------- = ---------------- = 5.73044
sin 38° 0.29636 0.29636
To the nearest tenth, b - 5.7 units.
Y = 2/x
x must not have the value of 0 because x is used as a denominator.
A denominator must not have a value of 0 because the overall value of the fraction is undefined.
x may be any positive or negative integer.
x = 1
y = 2/1 = 2 ⇒ (1,2)
x = 2
y = 2/2 = 1 ⇒ (2,1)
x = 3
y = 2/3 = 0.67 ⇒ (3, 2/3)
x = -1
y = 2/-1 = -2 ⇒ (-1,-2)
x = -2
y = 2/-2 = -1 ⇒ (-2, -1)
x = -3
y = 2/-3 or -0.67 ⇒ (-3, -2/3)
