Answer:
Step-by-step explanation:
B/4=3.2
B=12.8
Answer:
$14.80
Step-by-step explanation:
Original bike price: $185
Tax: 8% OR 0.08 as a DECIMAL
To find your answer, multiply the bike price by the DECIMAL (number) tax amount:
185 x 0.08
= 14.8
Therefore, Alex paid $14.80 in tax.
28 *4/7 = 16 in Mr Chang’s class
Answer:
f(x) = 16x2 + 32x - 9
To find the "zeros", set f(x) = 0:
0 = 16x2 + 32x - 9
The equation is solvable by factoring or by using the quadratic formula. The factors (use the "ac" method) are:
0 = (4x-1)(4x+9)
x = 1/4 = 0.25 and x = -9/4 = -2.25
Step-by-step explanation:
Answer: 9.04 feet
Step-by-step explanation:
First, it is important to draw a Right triangle, as the one attached, where "x" represents the height in feet from the ground in which the fire is burning.
In this case you need to use the following Trigonometric Identity:
You can identify that:
Therefore, you can substitute values into :
Finally, you must solve for "x" in order to find its value. You get that this is:
