Answer:
Coronavirusss
Step-by-step explanation:
Stay at home :D
Given:
m∠D = 5x - 10
m(ar EC) = 60°
m(ar RB) = 13x + 7
To find:
The value of x.
Solution:
<em>If two secants intersect outside a circle, then the measure of the angle formed is one-half the positive difference of the measures of the intercepted arcs.</em>



Multiply by 2 on both sides.


Add 53 on both sides, we get

Subtract 10x on both sides, we get

Divide by 3 on both sides, we get

The value of x is 11.
Answer:

Step-by-step explanation:
Given that,
Radius of cone, r = 7 inches
Slant height of the cone, l = 11 inches
We need to find the height of the cone. Let the height be h. Using trigonometry to find it as follows :

So, the height of the cone is equal to
.
Answer:
f(-3) = -16
Step-by-step explanation:
Given piecewise function is,
f(x) = 5x - 1 If x < -2
x + 3 If x ≥ -2
We have to find the value of he function when x = -3
Since x = -3 is less than x = -2,
Piece of the function to be considered,
f(x) = 5x - 1
f(-3) = 5(-3) - 1
f(-3) = -16