Hello,
A fraction is not defined if its denominator is null.
3x²-75=0
==>3(x²-25)=0
==>(x+5)(x-5)=0
==>x=-5 or x=5
Answer:
6.66 hours, that is, 6 hours and 40 minutes.
Step-by-step explanation:
If Mike can plow a field in 12 hours, we plows 1/12 of the field each hour.
If Phil can plow a field in 15 hours, we plows 1/15 of the field each hour.
So if they are working together, they can plow (1/12) + (1/15) of the field each hour, that is:
(1/12) + (1/15) = (5 + 4) / 60 = 9 / 60 = 3 / 20 = 1 / 6.66
So if they work together, they can plow the field in 6.66 hours, that is, 6 hours and 40 minutes.
Here, Angles under a straight line would be equal to 180
So, 70 + 60 + y = 180
130 + y = 180
y = 180 - 130
y = 50
Now, x = y [ As they are vertically opposite angles ]
In short, Your Answer would be 50
Hope this helps!
Dont see an image. please send again
Answer:
A) 195.74 ft^2
Step-by-step explanation:
Step 1: Find the area of the whole rectangle by multiplying 14 * 16 (length * width). 14 * 16 is 224.
Step 2: Find the area of the circle. The formula for the area of a circle is pi*r^2. 3 is the radius. Raise 3 to the second power. 3^2 is 9. Multiply 9 by 3.14. 9 * 3.14 is 28.26.
Step 3: Subtract the area of the circle from the area of the rectangle. 224 - 28.26 is 195.74. That's the area of the garden around the koi pond.
