Answer:
The radius of the duct is or
Step-by-step explanation:
The picture of the question in the attached figure
we know that
At the point of tangency, the tangent to a circle and the radius are perpendicular lines
so
In the right triangle formed
Applying the Pythagorean Theorem
Remember that
substitute
solve for r
Multiply by 16 both sides
convert to mixed number
----> exact value
The approximate value is
X=12 because I said so and I’m smart
Answer:
The answer is (A) (-6,4).
Step-by-step explanation:
First you have to multiply the first equation by 6 and the second equation by 4. Then next you subtract the second equation from 1.
30x + 24y = - 84
12x + 24y = 24
18x + 0. = - 108
=> 18x = - 108
=> x = - 108 / 18
=> x = - 6
Then for the next step
then put in x = - 6 in equation 2 and solve for y
(
3x + 6y = 6)
(3×(-6) + 6y = 6)
( - 18 + 6y = 6)
( 6y = 18 + 6
)
( 6y = 24)
(y = 4
)
(I really do hope this helps!!!)
Answer:
1600 is the answer
Step-by-step explanation:
x + 0.25x= 1.25x =2000÷1.25 =1600