Answer:
there are two different, real roots.
Step-by-step explanation:
The coefficients of this quadratic are {1, -7, -8}. Let's find the discriminant, b^2 - 4ac. In this case a = 1, b = -7 and c = -8 and so the discriminant value is
(-7)^2 - 4(1)(-8), or 49 + 32, or 81.
Because the discriminant is positive, we know immediately that there are two different, real roots.
We are not asked to find the roots, but let's do it anyway:
-(-7) ± √81
x = ------------------ => x = 8 and x = -2 (which are real and different from
2 one another).
Answer:
x = 2.5y
Step-by-step explanation:
If a cow can give 5 gallons of milk after eating 2 pounds of grass.
Let's consider 'x' is the number of pounds of grass it eats and 'y' is the number of gallons of milk the cow gives.
Hence,
5y = 2x
We will simplify it to get what x equal to y by dividing 2 on both side we find,
x = 2.5y
x is equal to 2.5 y
By eating 1 pound of grass cow can give 2.5 gallons of milk.
Answer:
20 hotdogs and 22 bags of popcorn.
Step-by-step explanation:
Answer:
egg yolk
Step-by-step explanation:
If you would like to know how many minutes will it take you to mow a lawn that measures 6000 square feet, you can calculate this using the following steps:
800 square feet ... 15 minutes
6000 square feet ... M minutes = ?
800 * M = 15 * 6000
M = 15 * 6000 / 800
M = 112.5 minutes
This will take 112.5 minutes.
