3 years ago

Given that f (x)=2x+5 and g(x)=x-7 solve for f (g (x)) when x=-3

Mathematics

1 answer:

Alexeev081 [22]3 years ago

7 0

2(-3-7)+5= 2(-10)+5= -20 + 5= -15

-15 is your final answer

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Find the output, k, when the input, t, is –7. k = 10t -19

kupik [55]

Answer:

k = - 89

Step-by-step explanation:

To calculate the output, substitute t = - 7 into the equation for output, that is

k = 10(- 7) - 19 = - 70 - 19 = - 89

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3 years ago

What is the value of the discriminant, b2 − 4ac, for the quadratic equation 0 = x2 − 4x + 5, and what does it mean about the num

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(-4)^2-4(1)(5)
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The discriminant is negative so there are no real number solutions.

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3 years ago

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Solnce55 [7]

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200 to 300

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3 0

2 years ago

Two roller coasters are vying for the title of the steepest drop the first ride has a hill that drops 140 feet in a 40 foot run

muminat

Answer:

They have the same slope

Step-by-step explanation:

Given

Coaster 1:

$Drops = 140ft$

$Run = 40ft$

Coaster 2:

$Drops = 105ft$

$Run = 30ft$

First, we calculate the slope (m) of both coasters

$m = \frac{Rise}{Run}$

$m = \frac{Drops}{Run}$

For coaster 1:

$m = \frac{140ft}{40ft}$

$m = \frac{140}{40}$

$m = 3.5$

For coaster 1:

$m = \frac{105ft}{30ft}$

$m = \frac{105}{30}$

$m = 3.5$

$m = m=>3.5 = 3.5$

By comparison, they have the same slope

8 0

3 years ago