Answer:

Step-by-step explanation:
Let
be an acute angle.
To solve:
, we take the sine inverse of both sides to obtain:

Recall composition property of a function and its inverse function.

We apply this property to the left hand side to obtain;

We now use our scientific calculator to obtain;

We round to the nearest tenth to obtain;

Answer: X=15 , Y=15
Step-by-step explanation:
This triangle is a 30, 60, 90 so that means it would be - a, 2a, a
on each side, so add that all together and you get x-15 and y-15
Answer:
21
Step-by-step explanation:
(9x2 + 6x – 7) + (-9x - 5) = 21
Well

translates to

so
log5(x/2)=5 means 5^5=x/2, so 3125=x/2, so 6250=x
9514 1404 393
Answer:
$81
Step-by-step explanation:
The garden is 4 yards = 12 feet by 3 yards = 9 feet. The area of it is the product of these dimensions, ...
(12 ft)(9 ft) = 108 ft²
The cost of fertilizer for that area will be ...
($0.75/ft²)(108 ft²) = $81.00
They will spend $81.00 to fertilize the garden.