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2 years ago

F(x) = -3x + 2 for x =3

Mathematics

2 answers:

leva [86]2 years ago

8 0

Answer:

x = -7

Step-by-step explanation:

f(x) = -3x + 2

= -3(3) + 2

= -9 + 2

= -7

Rus_ich [418]2 years ago

5 0

Solution:

we have input x= 3

and function f(x)= -3x+2

putting x=3 into f(x), we have,

f(3)= (-3)(3)+2

= -9+2

= -7

we can show input x and output f(x) as ordered pair, and it is given by.

let there be a set of input given by-

I= {3}

and for output-

O= {-7}

for ordered pair we will find I×O, that is now,

{(3,-7)}

which is not same as O×I

Hence, ordered pair is {(3,-7)}

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Answer:

Step-by-step explanation:

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2 years ago

84. Use properties of exponents to rewrite each expression with only positive, rational exponents. Then find the numerical value

Yakvenalex [24]

Answer:

a) 1/27

b) 16

c) 1/8

Step-by-step explanation:

a) $x^{-3/2}$

One of the properties of the exponents tells us that when we have a negative exponent we can express it in terms of its positive exponent by turning it into the denominator (and changing its sign), so we would have:

$x^{-3/2}=\frac{1}{x^{3/2} }$

And now, solving for x = 9 we have:

$\frac{1}{x^{3/2}}=\frac{1}{9^{3/2} } =\frac{1}{27}$

b) $y^{4/3}$

This is already a positive rational exponent so we are just going to substitute the value of y = 8 into the expression

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c) $z^{-3/4}$

Using the same property we used in a) we have:

$z^{-3/4}=\frac{1}{z^{3/4} }$

And now, solving for z = 16 we have:

$\frac{1}{z^3/4} } =\frac{1}{16^{3/4} } =\frac{1}{8}$

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3 years ago

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stich3 [128]

D, square root of 75= 5 square root 3

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2 years ago

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