Answer:
f(x) = 8x
g(x) = 4(8x) -7
g(x) = 32x-7
Step-by-step explanation:
Answer:
Discriminant: -4
No real solutions
Step-by-step explanation:
You might remember this long, seemingly very hairy thing called the <em>quadratic formula</em> from earlier in algebra:
The <em>discriminant</em> of a quadratic equation of the form is that bit under the square root: . What does the discriminant tell us? Since we're taking its square root, we know that is only real for non-negative values of . If , we have two real roots, one for and one for . If , the function has a rational root, since the formula becomes
In your case, we have the equation ; here, , , and , so our discriminant is . Since we'd have a negative under our square root in the quadratic formula, we have <em>no real solutions</em>.
The area of any trapezoid with base side lengths "b1" and "b2" and height "h" is given by the formula A = h(b1 + b2)/2.
Answer:
She tips the waiter 25.5 dollar.
Step-by-step explanation:
If the dinner cost 85 you multiply by .30 and you get 25.5. If you wanna find out whole cost after subtract 25.5 from 85.
Answer:
y = 6
Step-by-step explanation:
y = -4(1) + 10 = -4 + 10 = 6