The exterior angle at the intersection of the tangent and secant has a measure that is half the difference between the intercepted arcs.
... ((10x+20) -80)/2 = 2x+15
... 5x -30 = 2x +15
... 3x = 45
... x = 15
So, the unknown arc to the right has measure
.. 10x + 20 = 10·15 +20 = 170
And the arcs of the circle total 360°.
... 80 + z + 170 = 360
... z = 360 - 250 = 110 . . . subtract 250 from both sides
The appropriate choice for the value of z is
... B. 110
Y = 2x + 1
y = 2(-1) + 1
y= -2 + 1
y= -1
Answer:
7
Step-by-step explanation:
Answer:
Step-by-step explanation:
Split the polygon into 3 triangles as pictured below
<u>They have base and height:</u>
- 4 and 3, 1 and 1, 3 and 1
<u>Find the area of 3 triangles and add up:</u>
- A = 1/2*4*3 + 1/2*1*1 + 1/2*1*3 = 6 + 1/2 + 3/2 = 8 square units
Hello!
<h2>Answer:</h2>
Carla will pay $300.30 for the gold ring.
<h2>Explanation:</h2>
Sales tax is added on to the total cost of the item. We need to figure out how much tax is on the ring.
To do that, we must calculate 10% (or 0.10) of $273.00.
273 × 0.10 = 27.3
Now, add the tax to the cost of the ring.
273 + 27.3 = 300.3
