Answer:
Step-by-step explanation:
A quarter-note.
Volume of a cylinder=pi*r^2*h Diameter=0.400, Radius=0.400/2=0.200 | V of cylinder=pi*(0.200)^2*11.5=1.444
now this remain for 7 weeks...to get ink used for 1 week just divide it by 7
=1.444/7=0.207 | The answer is A
Answer:
14x
Step-by-step explanation:
You expand 2(7x+-3) (which seems to be 2(7x-3)):
6+14x-6
the sixes cancel out and you're left with
14x
Answer:
(15 * 10) / 30 = x
Step-by-step explanation:
Since each tile is 1 foot on each side this means that each tile will cover 1 square foot (1ft * 1ft = 1sq. ft.). We would now need to find the square footage of the bathroom by multiplying the bathroom length by its width. Then we can divide that square footage by 30 tiles per hour to find out how long it will take to cover the floor with tiles.
(15 * 10) / 30 = x
150 / 30 = x
5 hours = x
Finally, we can see that at a pace of 30 tiles per hour, Wilma will be able to finish tiling her bathroom in 5 hours.
Answer:
Step-by-step explanation:
We are given the equation:
Which has roots α and β.
And we want to express (α + 1)(β + 1) in terms of <em>a</em>, <em>b</em>, and <em>c</em>.
From the quadratic formula, we know that the two solutions to our equation are:
Let <em>x</em>₁ = α and <em>x₂ </em>= β. Substitute:
Combine fractions:
Rewrite:
Multiply and group:
Difference of two squares:
Expand and simplify:
Distribute:
Cancel like terms:
Factor:
Cancel. Hence:
Therefore: