A quadratic equation always has exactly two solutions. If the quadratic
expression is a perfect square, then they're both the same solution.
Yes it is a function because each domain has only one range means each x has only one y
x y
3.................5
-4................5
-5................0
1................1
4.................0
I think the mathematical equation for this sentence is
<em>(Step 1)</em>
4x-18=5 Add 18 to both sides to get the numbers on the same
+18 | +18 Side of the equals sign.
----------------------
4x =23
<em>(Step 2)</em>
4x =23 / 4 Divide equation by four
x=5.75 The answer is X=5.75
Hope I was able to help :)
41) Circumference of a circle is 2*pi*radius, or pi*diameter.
Diameter given is 0.5cm, so circumference is 0.5pi, approximately 1.57cm.
It says scale is 1 cm to 2.5ft. Use dimensional analysis. You can multiply by 2.5ft / 1 cm because it equals 1, and multiplying by 1 doesn't change the value (just the units here).
1.57cm * 2.5ft
-------- = 3.925ft
1 cm
C) 4 feet
42) 6% of $900 is 0.06*$900, which is $54.
$900 is including tax, so subtract the tax ($54) to get the price before tax.
$900 - $54 = $846
A) $846