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AveGali [126]
4 years ago
12

Consider the following piecewise-defined function, find f(-4)

Mathematics
2 answers:
bonufazy [111]4 years ago
5 0
(-4)^2-5, since its less than 3
16-5
= 11
monitta4 years ago
3 0
(-4)^2-5, since its less than 3
16-5
<span>= 11 i </span>believe this is your answer
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Hey can you please help me posted picture of question
Rudik [331]
Answer:
f⁻¹(x) = \frac{7x-3}{4}

Explanation:
To get the inverse of a function, we have to follow these steps:
1- replace f(x) with y
2- swap the x and y variables
3- solve for y
4- replace y with f⁻¹(x)

Applying this to the given as follows:
f(x) = \frac{4x-3}{7}

Step 1: replace f(x) with y:
y = \frac{4x-3}{7}

Step 2: swap the x and y variables:
x = \frac{4y-3}{7}

Step 3: solve for y:
7x = 4y - 3
4y = 7x - 3
y = \frac{7x-3}{4}

Step 4: replace y with f⁻¹(x):
f⁻¹(x) = \frac{7x-3}{4}

Hope this helps :)
8 0
4 years ago
If f(x)=x+4 and g(x)=x2-1 what is (gof)(x)?
Tema [17]

Answer:

x^2+8x+15

Step-by-step explanation:

This is g(f(x)), or g(x+4). x+4 squared is x^2+8x+16, and taking 1 away from that is x^2+8x+15.

5 0
3 years ago
Read 2 more answers
Write an equation that represents the line use exact numbers
SOVA2 [1]

Answer:

y=6/5-5

Step-by-step explanation:

first find your <em>y-intercept</em> which is -5

then find your <em>slope</em> which is 6/5

and set your equation up as y=mx+b

which means <em>y equals slope times x plus your y-intercept.</em>

so your answer is

y=6/5x-5

3 0
3 years ago
a trapezoid has an area of 20cm squared and a height of 5 cm. what is the sum of its top and bottom sides
bonufazy [111]
A=\frac{a+b}{2} h
A - area
h - height
a+b - sum of its top and bottom sides

20=\frac{a+b}{2} \cdot 5 \\&#10;4 = \frac{a+b}{2} \\&#10;a+b=8

The sum of its top and bottom sides is 8 cm.
6 0
3 years ago
Ethan went to physical education class 72 times this year. He spent 3/4 of this classes outside. How many of Ethan's physical ed
olga nikolaevna [1]

Answer:54

Step-by-step explanation:

72 classes in one year

75% spent outside

72x0.75=54

7 0
4 years ago
Read 2 more answers
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