Answer:
A simple way to calculate the distance between numbers on a number line is to count every number between them. A faster way is to find the distance by taking the absolute value of the difference of those numbers. For example, the absolute values of 4 and -4, or |4| and |-4|, are both 4.
Step-by-step explanation:
Answer: If we throw 4 cubes, there are 1296 different outcomes are possible.
Step-by-step explanation:
Given : A cube has faces numbered 1 to 6.
So the number of outcomes for throwing one die = 6
If we throw 4 cubes , then
According to the Fundamental counting principle,
The total number of different outcomes are possible = 
Therefore , The total number of different outcomes are possible 
Hence, there are 1296 different outcomes are possible.
Answer:
6 elephants and 3 kangaroos in the zoo.
Step-by-step explanation:
Number of animals = 9
Number of legs seen = 30
But an elephant has 4 legs, while a kangaroo has 2 legs.
Let the number of elephant be represented by E, and the number of kangaroo by K.
So that,
E + K = 9 .................. 1
4E + 2K = 30 ............. 2
Multiply equation 1 by 2 to have
2E + 2K = 18 ............ 3
Subtract equation 3 from 1
2E = 12
E = 6
Substitute the value of E in equation 1
E + K = 9
6 + K = 9
k = 3
Thus, there were 6 elephants and 3 kangaroos in the zoo.
Answer:
-7r^2+12r-8
Step-by-step explanation:
Answer:
169
Step-by-step explanation:
divided = divisior * quotient + remainder
so d = 13*13
= 169
