Answer:
53.58°
Step-by-step explanation:
SOHCAHTOA
COS (A)= ADJACENT/ HYPOTENUSE
A= acos(19/32(
A= 53.57642°
Answer:
B
Step-by-step explanation:
The part of the function where x <=2 is a line, so we can rule out C and D. Lastly, the part of the function where x<=2 has a slope of -2, so we can rule out A. That leaves us with the only possible answer B
Most textbooks interpret standard form of a quadratic function to be as follows:
f(x) =

In the function f(x) =

, notice we do not have a value for "c". Just place a "0" in for the c and you have standard form.
the criteria for standard form:
1. All like terms are combined
2. Degree must drop from left to right
3. The leading coefficient cannot be equal to zero.
$8.40 is the amount to be subtracted from the $42.00. If you multiply
20% (.20) by $42.00 you get $8.40. To get your final price subtract
$8.40 from $42.00 to get you final answer. I hope that helps.
3x(2x-7)
3(5)(2(5)-7)
15(10-7)
15(3)
45