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2 years ago

Write the percent as a fraction in simplest form 50%

Mathematics

1 answer:

12345 [234]2 years ago

7 0

Answer:

1/2

Step-by-step explanation:

1/2 means one half. 50% is a half of a whole. I hope I helped :)

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If f(x)=4x-1 find f(3)

sweet-ann [11.9K]

Answer:

f(3)=11

Step-by-step explanation:

given f(x)=4x-1.............(1)

put x=3

f(3)= $4\times3$ -1

f(3)=12-1

f(3)=11 answer

5 0

2 years ago

Given the coordinates for the function below, who of the following are coordinates for its inverse?

lapo4ka [179]

Answer:

If we have a function f(x) that has an inverse g(x), we have the relations:

f( g(x)) = x

g( f(x)) = x

Then if the coordinates for the function f(x) are points like (x₁, y₁)

The coordinates for the inverse, g(x), will be (y₁, x₁)

Now let's look at the table, here we can see that the coordinates for f(x) are:

(0, 650)

(100, 550)

(200, 450)

(340, 310)

(650, 0)

Then the coordinates of the inverse function will be:

(650, 0)

(550, 100)

(450, 200)

(340, 310)

(0, 650)

5 0

2 years ago

Please show work on how to do this

Irina-Kira [14]

Answer:

- 2.71

Step-by-step explanation:

2· $4^{v + 4}$ + 20 = 32
2· $4^{v + 4}$ = 12
$4^{v + 4}$ = 6
(v + 4) log 4 = log 6
v + 4 = log 6 / log 4
v + 4 = 1.29 (<em>rounded</em>)
v = 1.29 - 4
v = - 2.71

5 0

2 years ago

Suppose f(x) = 1/4 over the range a ≤ x ≤ b, and suppose P(X > 4) = 1/2.

Anettt [7]

Answer:

a=2

b=6

Step-by-step explanation:

Assuming a uniform distribution and that a ≤ x ≤ b, if f(x) = 1/4, then:

$f(x) =\frac{1}{4}=\frac{1}{b-a}\\b-a = 4$

If P(X > 4) = 1/2, then:

$\frac{1}{2} = 1-(\frac{x-a}{b-a})=1-(\frac{4-a}{4})\\a-4+4 =\frac{1}{2}*4\\ a=2\\b=4+a\\b=6$

The values for a and b are, respectively, 2 and 6.

3 0

3 years ago

Are these answers right Or wrong

uysha [10]

They are right except for 12. i think it is C but i could be wrong.

8 0

3 years ago