2B + Ph is the formula and to find the B you multiply h and b then divide by 2. * Disclaimer * the h you multiply is not the h in the formula.
Answer:
x=4
Step-by-step explanation:
<em>Multiply by 2 from both sides of equation.</em>
<em>2x/7-5=2*2</em>
<em>Simplify, to find the answer.</em>
<em>2*2=4</em>
<em>x=4 is the correct answer.</em>
<em>I hope this helps you, and have a wonderful day! </em>
There are 13 students in Sara's class. I did this by using 8 = 3/5x, x being the total number of students. The answer is 13.33334 but you cant have half a student so it rounds down to 13.
also number 4 can be any positive number. This is because if you take one fourth of a negative number it will be more than if you doubled it. for example 1/4 of -4 is -1 which is more than -4 doubled which is -8
1/9
Here's the proper explanation:
Since the vertex is (2,-1), the original equation will look like this: y=a*(x-2)^2-1
When the substitution happens we get to this:
0=a*(5-2)^2-1 then 1=a*(5-2)^2 -> 1=a*9
So, a=1/9! Written in another form:
1/9x^2-4/9x+4/9-1
Hope could help :)
Answer:
-2
Step-by-step explanation:
