2 years ago

If f(x) = -4x - 6, then f(0.3) =

Mathematics

1 answer:

Pavlova-9 [17]2 years ago

8 0

Step-by-step explanation:

-4 x 0.3 = -1.2

f(0.3) = -1.2 -6

-1.2 - 6 = -7.2

f(0.3) = -7.2

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Evaluate the expression when a= 4, b= - 2, and c= 7 - -> 5a - 9 (b - c)

ollegr [7]

Answer:

$65$

Step-by-step explanation:

Given the following question:

$5a-9(b-c)$
a = 4
b = 2
c = 7

In order to find the answer, we need to substitute the variables with the numbers given, and then solve using PEMDAS.

$5\times4-9\times(2-7)$
$2-7=-5$
$5\times4-9\times-5$
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$20-9\times-5$
$9\times-5=-45$
$20--45$
$20+45=65$
$=65$

Hope this helps.