Answer:
Step-by-step explanation:
2x² - 3x - 15 = 5
2x² - 3x - 20 = 0
Quadratic formula
x = [3 ± √(3² – 4·2(-20))] / [2·2]
= [3 ± √169] / 4
= [3 ± 13] /4
= -2.5, 4
Shannon will get there first. This is because 16.299 is less than 16.92. When looking at decimals, the first number at the decimal is most important.
the Distributive Property uses two operations: multiplication and addition. It is an essential key to success in algebra. The Distributive Property allows you to "distribute" a number to each of the addends within parentheses. It offers another way of solving a problem.
The question asks for the unit rate when 1/4 of a kilometer is covered in 1/3 of an hour.
Recall that rate is the quotient of two quantities. In our case the numerator is the distance (1/4) of a kilometer, and the denominator is the time: 1/3 of an hour.
So, we perform the following division of fractions:
1/4 diided by 1/3 which is the same as: 1/4 times 3/1 = 3/4
and since we are asked for the UNIT rate, we do the actual division:
The unit rate is 0.75 km per hour.
