Answer: Simply - 5
Step-by-step explanation: Let's solve your equation step-by-step.
25+x2+10x=0
Step 1: Simplify both sides of the equation.
x2+10x+25=0
Step 2: Factor left side of equation.
(x+5)(x+5)=0
Step 3: Set factors equal to 0.
x+5=0 or x+5=0
x=−5
This is the area of a trapezoid and the formula for that is:
.5(h)(b1 + b2) where h is height and b1 and b2 are the base length or the length of the parallel sides. therefore, our area is:
.5(16)(6+12)
8(18)
144
if you're wondering why the area formula works, construct another trapezoid but this time upside-down. now flip it along it's height axis so you can align one of the side lengths of the 2 trapezoids and you have a parallelogram.
the base of this parallelogram is b1+b2 of the original trapezoid and the height still remains h so the area of this parallelogram is (h)(b1 + b2). however, we want to find the area of the trapezoid but we find that the parallelogram is twice the area of our trapezoid so the area of the trapezoid is half the area of the parallelogram. so area = .5(h)(b1 + b2).
let me know if you have any questions!
8:4 is the correct answer for that problem
Answer:
2.) $520
3.) less
Step-by-step explanation:
I'm going to assume that the interst is compoudning and is convertable once a year
The compound interest formula for interest compounding only once a year is as follows
plug in the numbers and get
3.) If the interest rate is lower at the credit union he would obvioulsy be paying less (assuming that this interest rate is convertable annually as well)
C= 1,800- dailey fixed cost
2,200 (x) pianos in one day
c= 1,800 +2,200 (2)=
cost= 6,200