In the year 2000 the number of hazardous waste sites in state x was 8 less than twice the number of hazardous waste sites in sta
1 answer:
Answer:
In the year 2000 the number of hazardous waste sites in state y was 21
Step-by-step explanation:
Let
x ----> the number of hazardous waste sites in state x in the year 2000
y ----> the number of hazardous waste sites in state y in the year 2000
we know that
----> equation A
----> equation B
Solve the system of equations by substitution
Substitute equation B in equation A
Solve for y
Adds 8 both sides
Divide by 2 both sides
therefore
In the year 2000 the number of hazardous waste sites in state y was 21
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Step-by-step explanation:
According to this description we need a number that can be divided by 2,3 and 4 since the amount of rocks can be described by a natural number. However if a number is divided by 4 it is divided by 2 as well since 2*2=4.
If α is a natural number then 2*α is a natural number as well as the product of two natural numbers.
Which means that we need a number devided by 3 and 4.
The smallest number that fulfills this demand is 3*4=12.
Also any product of 12 with any natural number can be devided by 3, 4 and 2.
If the exercise asks for the numbers that are divided only by 2,3 and 4 these are:
Answer:
See below
Step-by-step explanation:
The number you described is the same as where the sine of an angle is the ratio between a right triangle's opposite side to the angle and the hypotenuse. So, in this case, if we had a right triangle with a height of
units and a hypotenuse of 2 units, the ratio between the two sides will result in the value you provided. This right triangle in particular would be a 30-60-90 triangle.
In the case of a unit circle, it’s the y-coordinate of the point where a 60° angle in the standard position intersects a unit circle and a right triangle is created from that.
