Tutors Answer Your Questions about expressions (FREE)
Question 726801: To solve √(x+√x-5=5 for x, begin with which step?
A. Combine the two like radicals, then square both sides.
B. Isolate one radical expression.
C. Eliminate the negative in the second radical expression.
D. Square both sides of the equation.
Click here to see answer by Alan3354(69443)  |
Question 730060: Evaluate the function at the given value of the independent variable and simplify.
f(x)=-3x-8;f(-2)
a)14
b)-11
c)-2
D)22
Evaluate the function at the given value of the independent variable and simplify.
f(x) = x2 - 1; f(x - 2)
A) x2 + 4
B) x2 - 4x + 3
C) x2 - 3
D) x2 - 4x + 4
Evaluate the function at the given value of the independent variable and simplify.
f(x) = 4x2 + 5x - 6; f(x - 1)
A) -3x2 + 4x - 7
B) 4x2 - 3x - 7
C) 4x2 - 3x + 3
D) 4x2 - 19x + 3
Evaluate the function at the given value of the independent variable and simplify.
f(x) = ; f(5)
x^2-6
_______
x^3-7x
Evaluate the function at the given value of the independent variable and simplify.
f(x)=x^-1;f(x-2)
a)x^2+4
b)x^2-4x+3
C)x2 - 3
D)x2 - 4x + 4
Click here to see answer by Alan3354(69443)  |
Question 730060: Evaluate the function at the given value of the independent variable and simplify.
f(x)=-3x-8;f(-2)
a)14
b)-11
c)-2
D)22
Evaluate the function at the given value of the independent variable and simplify.
f(x) = x2 - 1; f(x - 2)
A) x2 + 4
B) x2 - 4x + 3
C) x2 - 3
D) x2 - 4x + 4
Evaluate the function at the given value of the independent variable and simplify.
f(x) = 4x2 + 5x - 6; f(x - 1)
A) -3x2 + 4x - 7
B) 4x2 - 3x - 7
C) 4x2 - 3x + 3
D) 4x2 - 19x + 3
Evaluate the function at the given value of the independent variable and simplify.
f(x) = ; f(5)
x^2-6
_______
x^3-7x
Evaluate the function at the given value of the independent variable and simplify.
f(x)=x^-1;f(x-2)
a)x^2+4
b)x^2-4x+3
C)x2 - 3
D)x2 - 4x + 4
Click here to see answer by lynnlo(4176) |
Question 723550: The perimeter of a rectangle is 20 inches. If the length is 4 more than the width, find the width of the rectangle.
Data:
Perimeter of rectangle = 20 inches
Let Width of rectangle be 'x'
then, Length of rectangle = 4+x
Solution:
As, Perimeter of rectangle = 4*length
20 = 4*(4+x)
20 = 16+4x
20-16 = 4x
4 = 4x
4/4 = x
1 = x
or x = 1 Answer!
Click here to see answer by SaimaHaroon(4) |
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