Answer:
20% error
Step-by-step explanation:
easy
9.4/7.8 or do 0.078x=9.4
1.20512820513
round to nearest tenth
1.2
means
20% error
Find two numbers that multiply to -30 (last term) and add to 7 (middle coefficient)
The two numbers are 10 and -3
10 times -3 = -30
10 plus -3 = 7
Using those two values gets us the two factors (y+10) and (y-3)
Therefore, y^2+7y-30 factors to (y+10)(y-3)
The equation y^2+7y-30 = (y+10)(y-3) is true for all values of y.
One.
To find the area of a 3D object you multiply length, width, and hight.
So 1 x 1 x 1 = 1
One of the numbers is 399.
It is an odd number that has neither a 1 or a seven, is not divisible by 5 and has a three in the hundreds place.
Another number is 329 which meets all of the requirements. 7 goes into it 47 times
The last number is 343. Seven goes into it 49 times.
Hope this Helps!
