Answer:
Step-by-step explanation:
five times a number increased by nine is
5x+9
x is the unknown number being multiplied by 5
increase= add
so add by 9
Answer:
x = 10; x = 0
Step-by-step explanation:
x < 29 means x is less than 29. Any number less then 29 is a solution.
For example, pick x = 10. Since 10 < 29, x = 10 is a solution. How do we know x = 10 is a solution?
We start with x < 29.
Now replace x with 10.
10 < 29
Since 10 < 29 is a true statement, then x = 10 is a solution.
Now pick another number less than 29. For example, oick 0.
x = 0 is a solution.
Proof:
x < 29
Replace x with 0:
0 < 29
Since 0 < 29 is a true statement, then x = 0 is a solution.
You can give more solutions just by picking any numbers that are less than 29, such as 1, 2, 3, 15, 28, 23, -5, -18, etc.
Answer: x = 10; x = 0
Answer:
(0.353, -48)
Step-by-step explanation:
dy/dx = 9x² + 28x - 11 = 0
Using the quadratic formula:
x = -3.46 and 0.353
d²y/dx² = 18x + 28
Minima when d²y/dx² is positive
x = 0.35284 or (-14+sqrt(295))/9
y = 3x³ + 14x² - 11x - 46
y = -48.00651351
12 - 2x - 3y5
12 - (2 * 4) - (3 * -4) 5
12 - 4 + 12 * 5
12 - 4 + 60
8 + 60
68