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Phantasy [73]
3 years ago
14

(BEGINNER LEVEL, Picture provided) Use the line of best fit to predict the total amount of money earned in tips after working 12

hours

Mathematics
2 answers:
Anni [7]3 years ago
6 0
It is 110

Slope of the line is 10x So you will earn 110$ in 12 hours.
lesya692 [45]3 years ago
4 0

Answer:

Option C is correct

$120

Step-by-step explanation:

The equation of best line is given by:

y=mx+b          ....[1]

where, y represents the total amount of money earned in tip after x hours,  m is the slope and b is the y-intercept.

As per the statement:

From the graph:

Two points are:

(2, 20) and (8, 80)

Formula for slope(m) is given by:

m = \frac{y_2-y_1}{x_2-x_1}

then;

m = \frac{80-20}{8-2}=\frac{60}{6}=10

⇒m = 10

Substitute in [1] we have;

y = 10x+b

Also , substitute the point (2, 20) to find b;

20= 10(2)+b

⇒20=20+b

Subtract 20 from both sides we have;

⇒0 = b

or

b = 0

Then, we get the equation:

y=10x

We have to find total amount of money earned in tips after working 12 hours.

⇒x = 12 hours

then;

y=10(12) =120

Therefore, the total amount of money earned in tips after working 12 hours is, $120

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En la división sintética sólo son tomados en cuenta los coeficientes del divisor?
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Veremos que si, en la división sintética solo son tomados en cuenta los coeficientes del divisor.

Para explicarla, usaremos un ejemplo.

x^3 - 2x^2 + 5x + 3  será el <u>numerador</u>

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Para poder aplicar la división sintetica, el maximo exponente en el <u>denominador </u>debe ser uno.

Así, nuestro cociente es:

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En este caso, el primer coeficiente es 1.

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Ahora le sumamos esto al proximo coeficiente, que es -2:

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Multiplicamos esto por el valor de x, que es 2.

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6 0
3 years ago
Please help solve!!!!!!!!!!
Deffense [45]

Answer:

Height = 17.31821 feet

Step-by-step explanation:

<u><em>Explanation</em></u>

<u><em>From graph</em></u>

Given angle θ = 6.5°  and a = 152 feet

we need to find the height (h)

By using the tangent rule

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    Cross multiplication , we get

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