In a 30 - 60 - 90 triangle the side opposite the hypotenuse is 1/2 the hypotenuse and which will be the shorter side. Read this over a couple of times till you realize that (x + 12)/2 is the shortest side.
[(x + 12) / 2]^2 + x^2 = (x + 12)^2 subtract [(x + 12)/2]^2 from both sides.
x^2 = (x +12)^2 - [ (x +12)/2]^2
x^2 = (x + 12)^2 [ 1 - (1/2)^2] You were given this as a question in school? It seems awfully hard.
x^2 = (x + 12)^2 [3/4]
4x^2 = 3*(x^2 + 24x + 144)
4x^2 = 3x^2 + 72x + 432
x^2 - 72x - 432 = 0 This is a quadratic, do you know what they are?
The solution to this comes to x = 77.56
I don't think I made a mistake, but it is sure possible.Check the numbers and my method.
I would say that it would maby be (c)
Answer: Rose is correct 5^5*5^2=5^7
Step-by-step explanation:
when multiplying two powers that have the same base you can add the exponent s (product property’s)
Answer:
36°F
Step-by-step explanation:
The answer is quite simple. Simply place your celsius into the formula,
°F = 1.8 x °2 + 32
1.8 x 2 is 3.6 + 32 = 35.6
2 degrees celsius is 35.6 degrees Fahrenheit, rounding up is 36 degrees
It would be 50 times 0.075=3.75 sales tax and add that to the cost of the earrings =$53.75