Answer:
A or (2x+1)/(x-1)
Step-by-step explanation:
Let's simplify the top of the fraction first.
1. Simplify the numerator.
2x^2 -7x-4=(2x+1)(x-4)
2. Simplify the denominator.
x^2-5x+4=(x-4)(x-1)
Now we have:
((2x+1)(x-4))/((x-4)(x-1))
We see that there is an (x-4) both on the numerator and denominator.
We can remove (x-4) by division.
Doing that, we have:
(2x+1)/(x-1) or A
The surface area of the hemisphere with radius r = 19 cm. is 3400.62 square centimeters
<h3>How to determine the surface area?</h3>
The radius is given as:
r = 19
The surface area of a hemisphere is:
Area = 3πr²
So, we have:
Area = 3 * 3.14 * 19²
Evaluate
Area = 3400.62
Hence, the surface area of the hemisphere is 3400.62 square centimeters
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Answer:
10 dogs, 5 cats
Step-by-step explanation:
2:1 = whole to half
Area:
A = base times height/2
Perimeter:
base time length times width
Kevin will be left with 2 ounces of mixed nuts in the can
Step-by-step explanation:
Given
Total nuts = 16 ounces
As Kevin gave 1/2 of the nuts to his sister, he will be left with
He is left with 8 ounces of mixed nuts
The he eats 3/4 of the remaining
so he is left with 8 - 6 = 2 ounces of mixed nuts
Hence
Kevin will be left with 2 ounces of mixed nuts in the can
Keywords: Fractions, operations on fractions
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