Answer:not sure but it’s either a b c d e maybe don’t hold me to that
Step-by-step explanation:♀️♂️♀️♂️♀️♂️♂️♀️♀️
Answer:
6.7 days
Step-by-step explanation:
If t is the time the faster roofer takes, then the slower one takes 3t. Their combined rates in roofs per day are ...
1/t + 1/(3t) = 1/5
4/(3t) = 1/5 . . . . . . combine terms
t = 5(4/3) = 20/3 ≈ 6.7 . . . . multiply by 5t
The faster roofer working alone can roof a house in about 6.7 days.
Answer:
area of circle having radius 3
is πr²=π*3²=9π square units
area of circle having radius 2
=πr²=π×2²=4π square units
again
area of big circle having radius [3+2]=5 units
=πr²=π×5²=25π square units
Now
<u>area</u><u> </u><u>of</u><u> </u><u>shaded</u><u> </u><u>region</u><u>=</u><u>2</u><u>5</u><u>π</u><u>-</u><u>4</u><u>π</u><u>-</u><u>9</u><u>π</u><u>=</u><u>1</u><u>2</u><u>π</u><u> </u><u>or</u><u> </u><u>3</u><u>7</u><u>.</u><u>7</u><u>s</u><u>q</u><u>u</u><u>a</u><u>r</u><u>e</u><u> </u><u>units</u><u>.</u>