All Tasks
Coins and dice
Simon threw, simultaneously, the coin and the dice shown in the picture.
What is the probability of getting European face and an odd number?
# Multi-stage random experiments
Modeling
9
Multiply the numbers on powers
What is the result of $2^22^3$
# Powers
Learning
8
Diversion with power
What is the correct answer of
$\frac{3}{-2} \ x^3\div\left(-\frac32x\right)^2$
NOTE: write only the numerous part
e.x. if the answer is $\;\frac{45x}{34}$ just type 45 and 34 . if the number is negative the signal must be at the numerator.
# Powers of integer exponent
Reasoning
8
Write number as a power
How can you write the number $250$ as a power?
# Powers of integer exponent
Modeling
8
Exponential inequality
For which values of $x$ is it true that:
$(\frac{1}{2})^{x+9}>4$.
It uses only the properties of the powers.
# Powers of non-negative rational basis
# Exponential properties
Modeling
13
Algebraic expression with powers
Solve the following expression:
$4^7 ∶ 4^5 + 3^2 \cdot 6^2 ∶ 6^2 + 12^4: 12^3 − (5^4)^3 ∶ 5^{10} $
# Powers of integer exponent
Training
8