Answer:
−x(3−9x+8x^2+2x^3)
That's the answer simplified. Not simplified is −3x−9x^2+8x^3+2x^4
Step-by-step explanation:
Rational it stops and repeats
Answer:
Step-by-step explanation:
we know that If two angles are complementary, then their sum is equal to 90 degrees
Letx -----> the measure of an angle
y-----> the measure of he other angle
we know thatx+y=90 -----> y=90
-x -----> equation
Ax=y+54 ----> equation
Bsubstitute equation B in equation A and solve for yy=90-(y+54)
y=90-y-542y=36y=18°
Find the value of xx=y+54 -----> x=18+54=72°
thereforeThe measure of the angles are 72 degrees and 18 degrees
The answer is 50 miles per hour
Answer:
7 hours and 30 minutes
Step-by-step explanation:
![240 \div 4 = 60km \: per \: h](https://tex.z-dn.net/?f=240%20%5Cdiv%204%20%3D%2060km%20%5C%3A%20per%20%5C%3A%20h)
![450 \div 60 = 7.5 = 7h \: 30min](https://tex.z-dn.net/?f=450%20%5Cdiv%2060%20%3D%207.5%20%3D%207h%20%5C%3A%2030min)