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3 years ago

I need help on this question if you know the answer pls help me

Mathematics

1 answer:

vichka [17]3 years ago

3 0

Known fact:

$100 dollars for 8 hours of work --> $100 / 8hrs = $12.50 dollars/hrs

Two hours of work = $12.50 dollars/hr * 2hrs = $25 dollars

Six hours of work = $12.50 dollars/hr * 6hrs = $75

Ten hours of work = $12.50 dollars/hr * 10hrs = $125

fourteen hours of work = $12.50 dollars/hr * 14hrs = $175

Thus the answer is the bottom left choice.

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If f(x) is an exponential function where f(-1.5) 26 and

mariarad [96]

Answer:

$f(10) = 1147.25$

Step-by-step explanation:

Given

$f(-1.5) = 26$

$f(5.5) = 7$

Required

f(10)

An exponential function is represented as:

$f(x) = ab^x$

$f(-1.5) = 26$ impleies that:

$26 = ab^{-1.5}$ --- (1)

$f(5.5) = 7$ implies that

$7 = ab^{5.5}$ --- (2)

Divide (2) by (1)

$26/7 = ab^{-1.5}/ab^{5.5}$

$3.71429 = b^{-1.5+5.5}$

$3.71429 = b^{4}$

Take 4th root

$b = 1.39$

Substitute $b = 1.39$ in $26 = ab^{-1.5}$

$26 = a * 1.39^{-1.5}$

$26 = a * 0.6102$

Solve for (a)

$a = 26/0.6102$

$a = 42.61$

f(10) is calculated as:

$f(10) = ab^{10}$

$f(10) = 42.61 * 1.39^{10}$

$f(10) = 1147.25$

3 0

3 years ago

-10(2x+1/5) in standard form

Svetach [21]

Answer:

-20x-2

Step-by-step explanation:

5 0

3 years ago

PLEASE HELP ME !<br> (2,7); 3x-y =5<br> show all steps !

Zigmanuir [339]

Answer:

i dont think you've got the right (x,y) pair....

Step-by-step explanation:

3x - y = 5

3(2) - 7 = 5

6 - 7 = 5

those are not the correct coordinates for the equation

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3 years ago

BRAINLIEST TO CORRECT

Fynjy0 [20]

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33/4 + 14/5

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165/20 + 56/20

Add:
221/20

Answer:
11 1/20

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wolverine [178]

Answer:

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Step-by-step explanation:

6 0

3 years ago

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