Answer:
156.25
Step-by-step explanation:
Combine like terms. First, add 4.2x to both sides. This results in 1.8+0.5x = 0.3, and then 0.5x = 0.3-1.8.
Next, 0.05x = -1.5, or 5x = -150, and x = -30.
Must check this result by substitution of -30 for x in the original equation.
Is 1.8-3.7(-30)=-4.2(-30)+0.3 true or false?
So basically you form little trapaziods to fin =d the area. It's been a long time since I took calculus so Imma have to improvise
Area or trapaziod = area of rectangle + area of triangle so you get
2*1+(3-2)*1/2+3*1+(6-3)*1/2+6*1+(11-6)*1/2=15.5
12.5 * .25=3 1/8 miles running part
3.125 * .5=1 9/16 miles kayaking part
12.5+3.125+1.5625=17 3/16 miles total race
Answer:
b=-a
Step-by-step explanation:
Becaude when b is <u>positive</u> a will be <u>negative</u>
And when b is <u>negative</u> a will be <u>positive</u>.
