NC Math 3- End of Course Formula Quiz

Which expression best represents the “Hamburger Helper Hand” technique when converting from logarithmic to exponential form and vice versa?

• A

• B

• C

• D

• E

• True

• False

What is the formula to determine the segment lengths of two secant lines of the given picture?

What is the volume formula for the given 3D solid?

Complete the sentences with the correct word(s):

A tangent line in a circle intersects the circle at_____ point(s).

When a tangent line intersects when a radius of a circle, it forms a(n) __________ angle.

• three ; obutse

• one; acute

• one; right

• three; acute

What is the formula to find the margin of error (MOE) with a 95% confidence interval? Note: "s" = sample standard deviation and "n" = sample size.

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The given expressions a³ + b³ = (a + b)(a² − ab+b²) and a³ − b³ = (a−b)(a² + ab+b²) represents which factoring concept?

• sum and difference of cubes

• sum and difference of squares

• 1. multiplication and division of cubes

• 1. division of squares

Which triangle center involves a circle being on the outside of the triangle and when find this triangle center on a right triangle, it is the midpoint of the hypotenuse?

• centroid

• orthocenter

• incenter

• circumcenter

What formula represents density of a POPULATION?