WKEC-KSA Grade 10 Practice 1

Note: N.2

Which of the following expressions is equivalent to

 $\left(\sqrt[]{5}\right)^{\frac{1}{3}}$ ?

•  $\sqrt[3]{5}$ 

•  $\left(5\right)^{\frac{1}{6}}$ 

•  $\left(5\right)^{\frac{2}{3}}$ 

•  $\sqrt[5]{5}$ 

Note: A.3

The x-intercepts of a quadratic function are  $\frac{2}{3}\ and\ -5.$  Which of the following could be the original function?                                                                                     

•  $f\left(x\right)=\frac{2}{3}x^2-5$ 

•  $f\left(x\right)=3x^2+13x-10$ 

•  $f\left(x\right)=x^2+3x-2$ 

•  $f\left(x\right)=2x^2+7x-15$ 

Note: G.4

Trapezoid JKLM is rotated 90 degrees clockwise. What are the coordinates of K'?

• (−3, 7)\left(-3,\ 7\right)

  (−3, 7)

• (−3, −7)\left(-3,\ -7\right)

  (−3, −7)

• (−7, −3)\left(-7,\ -3\right)

  (−7, −3)

• (−7, 3)\left(-7,\ 3\right)

  (−7, 3)

Note: A.13, F.12, F.6

A certain bacteria triples every hour. If there are 10 bacteria to begin with, which of the following equations could represent the number of bacteria, b, present after h hours?

• 4 ft

• 64 ft

• 67 ft

• 134 ft

Note: A.23

A system of linear equations has infinitely many solutions. Which of the following statement(s) is true? There may be more than one answer.

• The graph of the system is a straight line.

• Every ordered pair is a solution of the system.

• The two equations are equivalent.

• The two lines have the same slope.

Note: G.6

In the diagram below, lines m and n are cut by transversal q.

What value of x would make lines m and n parallel?

• 50

• 70

• 80

• 110

Note: G.6

In ∆ABC, m∠A=53° and m∠B=78°. Which of the following statement is true?

Note: A.1

Jarius drove 25 miles and made a pit stop. After that, he continued driving at a constant speed of 70 miles per hour for t hours. Which expression represents the total distance he drove?

Note: A.20

Larissa bought 50 desserts for a dinner party. Large desserts were $6 each and small desserts were $4 each. If Larissa spent a total of $232 on desserts, how many more small desserts did she buy than large desserts?