Hi there! So first off, let's add the prices of the two necklaces. 32 + 28 is 60. Now, let's plug in the tax. The tax rate is 8%. Let's add that to 100%, because 100% represents the whole cost. 100 + 8 is 108. That's 108%. We will multiply that percentage by the cost. 60 * 108% (1.08) is 64.8. There. The total cost is $64.80.
X² - 8x = -10
to have a complete square, we must have this format:
a² + 2ab + b²
a² = x²
2ab = -8x ⇒ 2(x)(-4)
b² = -4² = 16
x² - 8x + 16 = -10 + 16
x² - 8x + 16 = +6
(x-4)² - 6 = 0
Both sides must have an additional value of 16.
The volume of the cylinder by definition is given by:
V = pi * r ^ 2 * h
Where,
r: radio
h: height
Substituting values we have:
V = 3.14 * (14/2) ^ 2 * 4.5
V = 692.37 ft³
Answer:
the volume of the pool is:
V = 692.37 ft³
The answer is A.
Explanation:
Since this is a right triangle you can use The formula: leg squared plus leg squared = hypotenuse squared
So lets square the hypotenuse and first leg
And you get 85 hypotenuse and 49 leg
So just subtract 49 from 85 to get the other leg squares
You get 36 so now just square root it
Square root of 36 is 6
So the best answer is 6
Hope this helps some.
X=5
7(5)-8=35-8=27
3(5)+12=15+12=27
