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2 years ago

7

If f(x)=3^x+10x and g(x)=2x-4 find (f-g) (x) (urgent)

1 answer:

notka56 [123]2 years ago

5 0

Answer:

(f - g)(x) = $3^{x}$ + 8x + 4

Step-by-step explanation:

(f - g)(x)

= f(x) - g(x)

= $3^{x}$ + 10x - (2x - 4) ← distribute parenthesis by - 1

= $3^{x}$ + 10x - 2x + 4 ← collect like terms

= $3^{x}$ + 8x + 4

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3 years ago

7. On Saturday, a craft store had 150 visitors, and 80% of the visitors made a purchase. Of the customers who made a purchase, 3

torisob [31]

Answer:

24 customers bought 3+ items.

Step-by-step explanation:

80% of 150 = 120

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57/120 bought 2 items

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3 years ago

(x,5), (-3,6); slope = -1

anyanavicka [17]

Answer:

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3 years ago

What is the rate of change between (2,2) and (17,7)

ziro4ka [17]

Answer:

$\frac{1}{3} = m$

Step-by-step explanation:

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

$\frac{-2 + 7}{-2 + 17} = \frac{5}{15} = \frac{1}{3}$

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3 years ago

Write the equation of the line perpendicular to y = -3/4x that passes through the point (3,-8)

arlik [135]

Answer:

y = $\frac{4}{3}$ x - 12

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - $\frac{3}{4}$ x ← is in slope- intercept form

with slope m = - $\frac{3}{4}$ , c = 0

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{-\frac{3}{4} }$ = $\frac{4}{3}$ , then

y = $\frac{4}{3}$ x + c ← is the partial equation

To find c substitute (3, - 8) into the partial equation

- 8 = 4 + c ⇒ c = - 8 - 4 = - 12

y = $\frac{4}{3}$ x - 12 ← equation of perpendicular line

4 0

3 years ago