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3 years ago

If the domain of the function f (x)=2x^2-8 is (-2,3,5) then the range is

Mathematics

1 answer:

sertanlavr [38]3 years ago

7 0

Answer:

<h2>The range: {0, 10, 42}</h2>

Step-by-step explanation:

Put the values of x from the domain to the equation of the function

f(x) = 2x² - 8

for x = -2

f(-2) = 2(-2)² - 8 = 2(4) - 8 = 8 - 8 = 0

for x = 3

f(3) = 2(3)² - 8 = 2(9) - 8 = 18 - 8 = 10

for x = 5

f(5) = 2(5)² - 8 = 2(25) - 8 = 50 - 8 = 42

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What is the answer to this

olasank [31]

Three times the variable m minus four is equal to fourteen.

Another way could be:

Four less than three multiplied by m is equivalent to fourteen.

The first way I put it is simpler but if you really want to impress your teacher then I suggest going with the second way.

Also if you are looking to solve the equation then it would be:

3m - 4 = 14

+4 +4

------------

3m = 18

----- -----

3 3

m = 5

Hope that helped :-)

8 0

3 years ago

Pls explain your answer

jasenka [17]

Middle square area= 8x8=64
one triangle area = (8x8)/2
multiply the triangel area by four and add the square area-- (4x32)+64=192

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3 years ago

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solniwko [45]

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emmasim [6.3K]

Answer:

1. -3

2. 5

Step-by-step explanation:

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2 years ago

Log (3x+1) - Log (2x+5)= 1

sleet_krkn [62]

Answer:

$\huge \red { \boxed{x = - \frac{49}{17}}}$

Step-by-step explanation:

$log(3x + 1) - log(2x + 5) = 1 \\ \\ log \: \frac{3x + 1}{2x + 5} = log \: 10..( \because \: log \: 10 = 1) \\ \\ \frac{3x + 1}{2x + 5} = 10 \\ \\ 3x + 1 = 20x + 50 \\ 3x - 20x = 50 - 1 \\ \\ - 17x = 49 \\ \\ x = \frac{49}{ - 17} \\ \\ \huge \purple{ \boxed{x = - \frac{49}{17}}} \\$

6 0

3 years ago

If the domain of the function f (x)=2x^2-8 is (-2,3,5) then the range is​

If the domain of the function f (x)=2x^2-8 is (-2,3,5) then the range is