Last year, the school's electric bill
1 answer:
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To solve for the longest side, the hypotenuse, you have to use the pythagorean theorem. It will be 10^2 + 9^2 = c^2. 100 + 81 =c^2.
c^2 = 181 so c = sqrt(181).
to find sin of A do opposite/hypotenuse which gives you 9/sqrt(181)
to find cos of A do adjacent/hypotenuse which gives you 10/sqrt(181)
c^2 = 181 so c = sqrt(181).
to find sin of A do opposite/hypotenuse which gives you 9/sqrt(181)
to find cos of A do adjacent/hypotenuse which gives you 10/sqrt(181)
The cost of one French silk cheesecake is $5 and one apple cheesecake is $14.
Step-by-step explanation:
Let,
Cost of one French silk cheesecake = x
Cost of one apple cheesecake = y
According to given statement;
8x+y=54 Eqn 1
3x+y=29 Eqn 2
Subtracting Eqn 2 from Eqn 1
Dividing both sides by 5
Putting x=5 in Eqn 1
The cost of one French silk cheesecake is $5 and one apple cheesecake is $14.
Keywords: linear equation, subtraction
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Answer:
x = 5
Step-by-step explanation:
using the sine or cosine ratio in the right triangle and the exact value
sin30° = , then
sin30° = =
=
( cross- multiply )
2x = 10 ( divide both sides by 2 )
x = 5