The discriminant is b^2-4ac
ax^2+bx+c=0
x^2+11x-10=0

11^2-4(1)(-10)
1. Simplify 11^2 to 121
121-4(1)(-10)

2. Simplify 4*1*-10 to -40
121-(-40)

3. Simplify brackets
121+40

4. Simplify
161
Your discriminant is 161

7 0

3 years ago

even built a scale model of the Gateway Arch in St.Louis the actual height of the Gateway Arch is 630 feet the height of the mod

suter [353]

This is eazy 630=90x
divide 90 on both sides
7=x
x=in
7feet=1in

8 0

3 years ago

Shane's bill for lunch at a restaurant was $19 he left a 20% tip what was the amount of the tip​

Shane's bill for lunch at a restaurant was $19 he left a 20% tip what was the amount of the tip