2 years ago

How do I do this?

Mathematics

1 answer:

Maksim231197 [3]2 years ago

7 0

Answer: There is no question so I don't know how to answer your question

Step-by-step explanation:

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2 f(x)=x2 + 2x cómo se evalúa?<br><br>a) f(3)<br>b) f(-1)<br>c) f(x-3)

abruzzese [7]

Answer:

b) f (-1) ese es el resultado

5 0

3 years ago

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.

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

Hope this helps.