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3 years ago

16 ears of corn are being picked for every 18 peppers if 9 peppers have been picked how many ears of corn have been picked

1 answer:

5 0

$16\ ears\ of\ corn \ picked\ for\ every\ 18\ peppers\\
x\ ears\ of\ corn \ picked\ for\ every\ 9\ peppers\\\\Proportion:\\
16-18\\x-9\\\\cross\ multiplication\\\\
16*9=18x\\
144=18x\ \ \ | divide\ by\ 18\\x=8\\\\
Answer:\ 8\ ears\ of\ corn.$

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2 years ago

Find the formula for an exponential function that passes through the two points given.

goldenfox [79]

Answer:

$y = 7(3^x)$

Step-by-step explanation:

Given

$(x_1,y_1) = (0,7)$

$(x_2,y_2) = (4,567)$

Required

Determine the formula

An exponential function is of the form:

$y = ab^x$

For point $(x_1,y_1) = (0,7)$

$7 = ab^0$

$7 = a*1$

$7 = a$

$a = 7$

For point $(x_2,y_2) = (4,567)$

$567 = ab^4$

Substitute 7 for a

$567 = 7*b^4$

Divide both sides by 7

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Take 4th root of both sides

$\sqrt[4]{81} =\sqrt[4]{b^4}$

$\sqrt[4]{81} =b$

$b = \sqrt[4]{81}$

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Substitute 7 for a and 3 for b in $y = ab^x$

$y = 7 * 3^x$

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2 years ago

The equation of the graphed line is x+2y=5. what is the x-intercept of the graph?

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The x-intercept is where the graph crosses the x-axis. that happens when y=0.

x + 2(0) = 5
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x-intercept is 5

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2 years ago