Answer:
Step-by-step explanation:
How to Find the X Intercept
Identify the x-axis.
Find the point where the line crosses the x-axis.
Write the ordered pair for the x-intercept.
Determine that the equation of the line is in standard form.
Plug in 0 for .
Assuming you are talk about a quadratic with y=-x^2-6x-13
Domain is all reals
Given:
Teddy has two sisters. One of them is 3 years younger than Teddy, the other one is 7 years younger than her only brother.
To find:
The age of older sister at the time when the younger sister was born.
Solution:
Let the age of Teddy be x.
One sister is 3 years younger than Teddy.
Age of one sister = x-3 years
The other one is 7 years younger than her only brother. It means other sister is 7 years younger than Teddy.
Age of other sister = x-7 years
Clearly (x-3) > (x-7). So, difference between the ages of sisters is
Therefore, the age of older sister is 4 years when the younger sister was born.
1. is false
3. is 5
4. 17.5
someone else can get the other two.
First you have to change all the denominators to a common denominator.
So lets change them to 18!
3 1/6 = 3 3/18 8 2/9 = 8 4/18 1 1/2 = 1 9/18. Now add all the numerators of the fractions together that equals 16so your fraction is 16/18 Now add all your whole numbers together that equals 12. So now you have 12 16/18 now reduce to lowest terms equals 12 8/9