2 years ago

Let f(x)=2x-1 and g(x)=1/x. Find the value of f(g(7))

Mathematics

1 answer:

netineya [11]2 years ago

3 0

Answer:

-5/7

Step-by-step explanation:

We need to find g(7) first

All we have to is plug 7 in the place of x

g(7) = 1/7

Now we have f(1/7) = 2x - 1

f(1/7) = 2(1/7) - 1

f(1/7) = 2/7 - 1

Don't forget about common denominators

2/7 - 7/7 = -5/7

You might be interested in

create a sketch of the graph of a function whose gradient is linear and that gradient has an x-intercept at x=4

valentina_108 [34]

Here is one that meets your requirements.

7 0

3 years ago

How do you solve 5-4x<95

mario62 [17]

$5 - 4x < 95 \\ - 4x < 95 - 5 \\ - 4x = 90 \\ x = - \frac{90}{4} \\ \boxed{ x = - \frac{45}{2} }$

8 0

2 years ago

Hello guys I really need help is anyone available please and ty

kati45 [8]

Answer:

your right

Step-by-step explanation:

I think....

5 0

3 years ago

A waterslide is rented at $500 per day plus a charge per hour of use. The bounce house was used for 5 hours one day, and the tot

Mazyrski [523]

Answer: $500+5x=800$

Step-by-step explanation:

Given: The rent of waterslide per day = $500

Let x be the a charge per hour of use.

The number of hours bounce house was used = 5 hours

Since, the total charge was $800.

Therefore, the equation can be used to find the charge x, in dollars, per hour of use is given by :-

Fixed charge+5 times x=Total charge

$\Rightarrow500+5x=800$

4 0

3 years ago

Read 2 more answers

ILL MARK BRAINIEST IF YOU DO THIS RIGHT!!!

Arlecino [84]

First let’s find the equation:
a = (42-21)/(26-13)
a= 21/13
y-y1 = a(x-x1)
y-21=(21/13)(x-13)
y-21=(21/13)x - 21
y=(21/13)x-21+21
y=(21/13)x

Now we will find the other point:
X = 2 >> y =(21/13)*2 = 3.23 (not)
X = 3 >> y =(21/13)*3 = 4.84 (not)
X = 4 >> y =(21/13)*4 = 6.46 (not)

X = 5 >> y =(21/13)*5 = 8.07 (yes) find the answer

7 0

2 years ago