Answer:
7. (4x +10)/(x^3 +3x^2 -16x -48)
9. -320/93
Step-by-step explanation:
7. As with adding any fractions, first you find a common denominator. When the fractions are rational expressions, it often helps to factor the denominators.
6/(x^2 -16) -2/(x^2 -x -12) = 6/((x -4)(x +4)) -2/((x -4)(x +3))
= (6(x +3) -2(x +4))/((x -4)(x +3)(x +4)) . . . . . using a common denominator
= (6x +18 -2x -8)/((x -4)(x +3)(x +4))
= (4x +10)/((x^2 -16)(x +3))
= (4x +10)/(x^3 +3x^2 -16x -48)
_____
9. First you simplify the denominator:
2/25 -5/16 = (2·16 -5·25)/(25·16) = -93/400
Then you perform the division. This can be done by multiplying by the inverse of the denominator.
(4/5)/(2/5 -5/16) = (4/5)·(-400/93) = -320/93
Incomplete Question:
The content of the pie chart is as follows:
<em>Hamsters = 9%
; Snakes = 10%
; Cats = 23%
</em>
<em>
Birds = 21%
; Dogs = 26%
; Fish = 11%</em>
<em></em>
Answer:
The number of citizens who chose cat or fish is 47,600
Step-by-step explanation:
Given
Number of citizens = 140,000
Required
Determine the number of those that chose fish or cats
First, we need to calculate the percentage of those whose pets are either cats or fish
Substitute 23% for cat and 11% for fish
Next, is to multiply the calculated percentage by the number of citizens
<em>Hence, the number of citizens who chose cat or fish is 47,600</em>
Answer:
No
Step-by-step explanation:
27 No
28.A
you are to read it maximum and minimum point on the vertical axis
Answer:
Dilation of 3
Step-by-step explanation:
The value of X is D. 25
Every triangle adds up to 180 degrees so you just add up the given numbers, then subtract that number from 180 and that is your answer.
