MATHEMATICS

Chou takes 20 coins from a box, and he gets 12 red coins and 8 black coins. If the whole box contains 10000 coins, about how many of them are black?

• 8000

• 4000

• 400

• 6000

If 𝒚 = 𝒙^𝟐 − 𝟑𝒙 + 𝟖, what is the value of y when 𝒙 = 2?

• 6

• 8

• 10

• 12

In the system of equations 𝟑𝒙 + 𝟓𝒚 = 𝟓 and −𝟔𝒙 – 𝟓𝒚 = −𝟏𝟕, the value of 𝒙 which satisfies both equations is:

 

• 2

• 4

• 6

• 8

Find the solution of the following equation. (𝒙 – 𝟒) (𝒙 + 𝟑) (𝒙 + 𝟏) = 0

• 1, 3, -4

• -1. -3, 4

• -1, 3, -4

• 1. -3, 4

Find the solutions of the following quadratic equation:

𝒙^𝟐 = 36

• 6

• -6

• 36

• 6 and -6

Find the solutions of the following equation:

𝒙^𝟑 = -8

• 8

• -8

• 2

• -2

At which point does the graph of 𝒚 = (𝒙 – 𝟑)^𝟓 + 𝟔𝟎 cross the y axis?

• 0, 60

• 0, 303

• 0, -183

• 0, 57

_______ are logarithms with base 10; the base 10 is usually omitted when writing common logarithms.

• Natural Logarithms

• Common Logarithms

• Exponent Logarithms

• Fixed Logarithms

Aurora borrowed an amount of money from Eudora. She agrees to pay the principal plus interest by paying P38,973.76 each year for 3 years. How much money did she borrow if interest is 8% compounded quarterly?

• 200,000

• 100,000

• 196,400

• 82,900

This function is the ratio of two polynomial functions where the denominator polynomial is not equal to zero.

• Rational

• Irrational

• Mixed

• Injective