SAT2-MATHEMATICS Online Practice Questions and Answers

Correct Answer: E

The number of roses, 5x, plus the number of tulips, 6x, is equal to 242 total flowers: 5x + 6x = 242, 11x = 242, x = 22. There are 5(22) = 110 roses and 6(22) = 132 tulips in Lindsay's garden.

Correct Answer: C

The surface area of a cube is equal to 6e2, where e is the length of one edge of the cube; 6e2= 384 cm,e2= 64, e = 8 cm. The volume of a cube is equal to e3; (8 cm)3= 512 cm3.

Correct Answer: A

First, convert the equation to slope-intercept for m:y= m x+b Divide both sides of the equation by –3:

The slope of a line written in this form is equal to the coefficient of the x term. The coefficient of the term is -4, so the slope of the line is -4

Correct Answer: B

Substitute 6 for m:

Correct Answer: A

The measure of an exterior angle of a triangle is equal to the sum of the two interior angles of the triangle to which the exterior angle is NOT supplementary. Angle i is supplementary to angle g, so the sum of the interior angles e and f is equal to the measure of angle

Correct Answer: E

An expression is undefined when a denominator of the expression is equal to zero. When

Correct Answer: C

A square has four right (90-degree) angles. The diagonals of a square bisect its angles. Diagonal AC bisects C, forming two 45-degree angles, angle ACB and angle ACD. The sine of 45 degrees is equal to 2/2

Correct Answer: A

Both figures contain five angles. Each figure contains three right angles and an angle labeled 105 degrees. Therefore, the corresponding angles in each figure whose measures are not given (angles B and G, respectively) must also be equal, which makes the two figures similar. The lengths of the sides of similar figures are in the same ratio. The length of side FJ is 36 units and the length of its corresponding side, AE, in figure ABCDE is 180 units. Therefore, the ratio of side FJ to side AE is 36:180 or 1:5. The lengths of sides FG and AB are in the same ratio. If the length of side FG is x, then:

The length of side FG is 21 units.

Correct Answer: A

At the start, there are 5 + 3 + 2 = 10 pens in the box, 3 of which are black. Therefore, the probability of selecting a black pen is 3/10 After the black pen is removed, there are nine pens remaining in the box, five of which are blue. The

probability of selecting a blue pen second is 5/9 To find the probability that both events will happen, multiply the probability of the first event by the probability of the second event:

Correct Answer: A

Solve-6b + 2a – 25 = 25 for a in terms of b: -6b + 2a – 25 = 5, -3b + a = 15, a = 15+3b. Substitute a in terms of b into the second equation:

Substitute b into the first equation to find the value of a: -6b + 2a – 25 = 5, -6(-3) 2a – 25 = 5, 18+2a = 30, 2a = 12, a = 6. Finally, ,