Answer:
-x^2 - 20x -4 = 0
Step-by-step explanation:
I assume you meant (x-8)(2x+3) = (3x-5)(x+4).
Perform the two indicated multiplications and then combine like terms:
2x^2 + 3x - 16x - 24 = 3x^2 + 12x - 5x - 20
Combine the x terms on each side:
2x^2 - 13x - 24 = 3x^2 + 7x - 20
Subtract 3x^2 from both sides:
-x^2 - 13x - 24 = 7x - 20
Subtract 7x from both sides:
-x^2 - 20x - 24 = -20
Add 20 to both sides:
-x^2 - 20x -4 = 0 This is the desired quadratic equation.
Answer:
31.96
Step-by-step explanation:
The product of 2 numbers is simply one number multiplied by another
6.8 x 4.7 = 31.96
As a sanity check, just round the numbers off to a whole numbers and take a product of those two:
i.e 6.8 rounded off to the nearest whole number is 7 and 4.7 rounded off to the nearest whole number is 5.
7 x 5 = 35
If you look at the possible answers, only 31.96 is anywhere close to 35, hence you can be be more confident that your answer of 31.96 is correct.
I think it’s Graph c or b but im leaning more on b
Sorry didn’t really help much
Answer:
Slope 4
X-intercept -2
Y-intercept 8
Step-by-step explanation:
Answer:
6 hour 20 minutes
Step-by-step explanation:
We are given that a space plane skims the edge of space at 400 miles per hour.
Circumference of the planet=25000 miles approximately
We have to find the time taken by the plane to travel around the planet.
Speed of plane=4000 miles per hour
Total distance traveled by the plane= approximately 25000 miles
Because plane travel in circular path therefore, distance
traveled by plane=Circumference of planet
Time =
Substitute the values then we get
Time =
Time=
1 hour=60 minutes
Hence, the plane takes time to travel around the planet=6 hour 20 minutes
