Answer:
x = √(10) - 2, -√(10) - 2
Step-by-step explanation:
x² + 4x + 4 = 10
factor:
(x + 2)² = 10
take square root of both sides:
x + 2 = ±√(10)
split into 2 equations:
x + 2 = √(10) x + 2 = -√(10)
solve both equations and collect solutions:
x = √(10) - 2, -√(10) - 2
Answer:
gradient = -5
Step-by-step explanation:
A line passes (x1, y1) and (x2, y2) has the gradient (slope) which is calculated by:
gradient = (y2-y1)/(x2-x1)
As shown in picture, this blue line passes (-1, 0) and (0, -5)
=> gradient = (-5 - 0)/(0 - -1) = -5/1 = -5
Hope this helps!
If B is the center of that circle, then that statement is definitely false. A central angle's degree measure is equal to the measure of the arc which it intercepts. Keep in mind that arcs can be measured according to their LENGTH or to their DEGREE, and they are both very different from one another. If arc AC is 65°, then the measure of angle ABC is also 65°
Answer:
b
Step-by-step explanation:
1.6 x 10^5 / 0.2 x 10^2
10^{5-2} x 1.6 / 0.2
10^3 x 1.6 / 0.2
1600 / 0.2
Answer:13
Step-by-step explanation:
I assume you want to find x?
Anyways, by pythagoras, the slide length of the side that shares both triangles is sqrt(17^2 -13^2) = 2sqrt30. By Pythagoras again, x =sqrt(7^2 + (2sqrt30)^2), or 13.
