Your equation should look like (x + c)2 = d or (x - c)2 = d.
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The equation with completing the squares is (x + 8)² = 77.
An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 4 = 9 is an equation.
We have,
x² + 16x - 2 = 11
We can make completesquares.
x² + 16x - 2 - 11 = 0
x² + 16x - 13 = 0
x² + 2 x 8 x (x) -8² + 8² - 13 = 0
(x² + 16x + 8²) - 64 - 13 = 0
(x + 8)² - 77 = 0
(x + 8)² = 77
Thus,
The equation is (x + 8)² = 77.
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Answer:
(x+8)^2=77 and x=negative 8±√77
Step-by-step explanation:
After watching a video, I got it right on Khan
Answer:
Noura is seven years old
Step-by-step explanation:
to get Noura's age first you need to subtract 5 years from Ali's age which will get you to 14 years of age now you just need to divide 14 by two to get Noura's age which is seven
rate of growth of a population with a birth rate of 30births per
1000 and a death rate of 20 deaths per 1000?
Answer:
10 growth per 1000.
Step-by-step explanation:
Given,
Rate of birth = 30 births per 1000
Rate of death = 20 deaths per 1000
As the growth in population is the difference in the number of the child take birth and the person die.
As we are calculating the rate of birth and rate of growth in per thousands of members, so the growth rate will be also in per thousands.
As we can see on every one thousand people,
total birth = 30
total death = 20
so, total growth = total birth - total growth
= 30 - 20
= 10
As at every 1000 persons, there are 10 persons survive, so the rate of growth will be 10 growth per 1000.
Answer:
b=3m
Step-by-step explanation: