Introduction: comprobación de requisito previo
Enseñamos conceptos difíciles con las palabras más simples posibles. Vamos a corroborar que conozcas los términos y las ideas que se necesitan. Este curso es el correcto si obtienes al menos 80% en esta prueba, pero menos del 70 % de la place-out test
Tiempo restante:
10:00
10:00
1.
Calculate:
\[(-2) \times (5 + 3 \times 3 - 20) + 4\]
\(-16\)
\(-8\)
\(0\)
\(8\)
\(16\)
2.
What is \(\frac{11}{6} - \frac{6}{4}\) expressed in simplest form?
\(\displaystyle \frac{1}{2}\)
\(\displaystyle \frac{1}{3}\)
\(\displaystyle \frac{1}{4}\)
\(\displaystyle \frac{2}{3}\)
\(\displaystyle \frac{5}{2}\)
3.
How many different ways are there to make an outfit with exactly one shirt and one pair of pants, if you have 3 different shirts and 4 different pairs of pants to choose from?
\(3\)
\(4\)
\(7\)
\(12\)
\(24\)
4.
What is the area of this triangle?
\(17\)
\(25\)
\(30\)
\(34\)
\(60\)
5.
Which of these is the prime factorization of 30?
\(3 \times 10\)
\(5 \times 6\)
\(2 \times 3 \times 5\)
\(1 \times 2 \times 3 \times 5\)
\(30\) has no prime factorization
6.
If you pick one marble from a bag which has 3 red marbles and 7 blue marbles, what is the probability that you pick a red marble?
\(\displaystyle \frac{1}{10}\)
\(\displaystyle \frac{3}{7}\)
\(\displaystyle \frac{3}{10}\)
\(\displaystyle \frac{4}{10}\)
\(\displaystyle \frac{7}{3}\)