2 years ago

5/7y=3-1/5 what is y?

1 answer:

4 0

You want y? One way to get y alone would be to mult. all 3 terms by (7/5):

(7/5)(5/7)y = (7/5)*3 - (7/5)(-1/5). This simplifies to:

y = 21/5 * 7/25, or y = 147 / 125.

You could check this using decimal fractions:

y = 4.20 * 0.28 = 1.176 = 147 / 125.

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the vertex of this parabola is at 4, -3, x-value is 5 and y-value at -6 what is the coefficient of the squared expression

posledela

Hello:
an equation is : f(x) = a(x-4)² - 3
the point (5 , -6)in parabola : --6 = a(5-4)² --3
-6 =a -3
a =-3 is <span>the coefficient of the squared expression in the parabola equation</span>

6 0

2 years ago

Find the domain for the rational function f(x)=x-1/x+3

Savatey [412]

Answer:

x≠-3 or x<-3 and -3<x or (∞,-3) and (-3,∞)

Step-by-step explanation:

If the expression you have given is $\frac{x-1}{x+3}$ then the domain is x≠-3