Answer:
x²-2x-35
Step-by-step explanation:
Write it in factored form
(x+5)(x-7)
multiply them to get
x²-2x-35
Answer:
b. AD II DC
math is annoying, a lot of the stuff they teach we don't use in the real world lol
Answer: Our required integers will be 9,11,19.
Explanation:
Let three integers all less than 25 be x,y,z
Since we have given that
Range = 10
Mean = 13
These three integers will be
Since their range is 10 i.e.
And
Mean = 13
So, it satisfies the above conditions and they are all less than 25.
Hence, our required integers will be 9,11,19.
By pythagoras theorem,
cb^2 = ac^2 + ab^2
5^2 = ac^2 + 3^2
ac^2 = 5^2 - 3^2 = 16
ac = squareroot 16 = 4cm
We need to determine the radius and diameter of the circle. If the area of the circle is 10 pi in^2, then, according to the formula for the area of a circle,
A = 10 pi in^2 = pi*r^2. Thus, 10 in^2 = r^2, and r = radius of circle = sqrt(10) in.
Thus, the diam. of the circle is 2sqrt(10) in. This diam. has the same length as does the hypotenuse of one of the triangles making up the square.
Thus, [ 2*sqrt(10) ]^2 = x^2 + x^2, where x represents the length of one side of the square. So, 4(10) in^2 = 2x^2. Then:
40 in^2 = 2x^2, or 20 in^2 = x^2, and so the length x of one side of the square is sqrt(20). The area of the square is the square of this result:
Area of the square = x^2 = [ sqrt(20) ]^2 = 20 in^2 (answer). Compare that to the 10 pi sq in area of the circle (31.42 in^2).