Answer:
2.5
Step-by-step explanation:
you can use pythag theorem and divide c by two:
-3^2+4^2=c^2
9+16= 25
c=5
however, 5/2=2.5
Answer:
.....................
10)=(-3)^2.x^4×2.y^2(5.x^2y^6)-7^2x^5×2y^4×2
=(9×5)x^8+2y^2+6-49x^10y^8
=45x^8+2y^2+6-49x^10y^8
=45x^10y^8-49x^10y^8
=-4x^10y^8
Answer:
The area of the rectangle is increased in 76 percent.
Step-by-step explanation:
The area of a rectangle (
) is represented by the following formula:

Where:
- Width.
- Length.
If length is increased by 120 %and width is decreased by 20 %, the percentage change in the area of the rectangle is: (
,
)



The area of the rectangle is increased in 76 percent.
Answer: Tina rides 4 miles and Derek rides 3 miles.
Explanation:
Since we have given that
Distance covered by Derek in west direction be x
Distance covered by Tina in south direction be x+1
Distance between the bikers when they both stop is x+2
Since it forms right triangle, so we will apply "Pythagorus theorem":

Since distance can't be in negative sign, so we take x=3 miles
Derek rides 3 miles
Tina rides is given by

Hence, Tina rides 4 miles and Derek rides 3 miles.
Combine like terms (5y and -y= 4y) and the simplest form would be 4y+7