REVIEW for SEM 1 FINAL EXAM - Mathematical Concepts

Front

Simplify the expression by combining like terms: 9x^2 + 14x - x^2 + 6x

Back

8x^2 + 20x

Front

What are the factors of 25?

Back

1, 5, 25

Front

What value for x makes the fractions equivalent: \( \frac{3}{x} = \frac{15}{35} \)?

Back

7

Front

Change \( \frac{5}{8} \) to a decimal.

Back

0.625

Front

Rewrite 34% as a decimal.

Back

0.34

Front

What is the sum of the angles in a triangle?

Back

180 degrees

Front

What is the Pythagorean theorem?

Back

In a right triangle, \( a^2 + b^2 = c^2 \), where c is the hypotenuse.

Front

What is the quadratic formula?

Back

\( x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \)

Front

What is the slope-intercept form of a linear equation?

Back

\( y = mx + b \), where m is the slope and b is the y-intercept.

Front

What is the area of a circle?

Back

\( A = \pi r^2 \), where r is the radius.