Here are the answers for the Unit 7 lesson 1 Geometry Practice!
1. C - If a line is tangent to a circle then...
2. D - 120 Degrees
3. B - 47 Degrees
4. C - 4.8 Units
5. A, B, D - A tangent line is perpendicular to the radius..., A tangent line is perpendicular to the diameter..., A tangent line intersects...
6. B - y = 2/3x + 1/3
7. A - 6.5
8. B, D - 8 & 4 square-root(21), 10 & 10 square-root(3)
9. A, C, D - 8 & 4 square-root(3), 3 & 5, 2 & 2 square-root(5)
10. D - 78 cm
Just took it these are 100%
Answer:
2.25
Step-by-step explanation:
The question gives us one hint. That side of the square is 1.5"
Because it gives us that, we can use that to find the area. Because it is a square, all of the sides are the same length.
To find the area it is basexheight
So that is why the answer is 2.25 because 1.5x1.5=the area of the square
Answer:
Price per carton * number of cartons
Step-by-step explanation:
dont have time to write it all here
Answer:
a. a = 1, b = -5, c = -14
b. a = 1, b = -6, c = 9
c. a = -1, b = -1, c = -3
d. a = 1, b = 0, c = -1
e. a = 1, b = 0, c = -3
Step-by-step explanation:
a. x-ints at 7 and -2
this means that our quadratic equation must factor to:

FOIL:

Simplify:

a = 1, b = -5, c = -14
b. one x-int at 3
this means that the equation will factor to:

FOIL:

Simplify:

a = 1, b = -6, c = 9
c. no x-int and negative y must be less than 0
This means that our vertex must be below the x-axis and our parabola must point down
There are many equations for this, but one could be:

a = -1, b = -1, c = -3
d. one positive x-int, one negative x-int
We can use any x-intercepts, so let's just use -1 and 1
The equation will factor to:

This is a perfect square
FOIL:

a = 1, b = 0, c = -1
e. x-int at 
our equation will factor to:

This is also a perfect square
FOIL and you will get:

a = 1, b = 0, c = -3