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asambeis [7]
3 years ago
5

If f (x) = -x - 7 what is f (-3) Plz help

Mathematics
1 answer:
agasfer [191]3 years ago
6 0

Answer:

f(-3) = -4

Step-by-step explanation:

f(-3) = -(-3) - 7

      = 3 - 7

      = -4

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What does -2(3x-4)=8 mean??
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-2(3x-4)=8
-6x + 8 = 8
-6x = 0
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Anastasia gets overtime (time and a half) for every hour she works over 40 hours. If her hourly pay is $28.50, how much would sh
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Answer:

142.50

Step-by-step explanation:

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Meliza wanted to do some shopping on iTunes. She bought one movie for $6.99 and then by 10 songs. Releases total iPhones cost wa
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Use a truth table to verify the first De Morgan law (p ∧ q)’ ≡ p’ ∨ q’.
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Answer:

(p ∧ q)’ ≡ p’ ∨ q’

Step-by-step explanation:

First, p and q have just four (4) possibilities, p∧q is true (t) when p and q are both t.

p ∧    q

t t t

t f f

f f t

f f f

next step is getting the opposite

(p∧q)'

    <em>f</em>

<em>     t</em>

<em>     t</em>

<em>     t</em>

Then we get p' V q', V is true (t) when the first or the second is true.

p' V  q'

f  <em>f</em>  f

f  <em>t</em>  t

t  <em>t</em>  f

t  <em>t</em>  t

Let's compare them, ≡ is true if the first is equal to the second one.

(p∧q)'   ≡     (p' V q')

    <em>f              f </em>

<em>     t              t</em>

<em>     t              t</em>

<em>     t              t</em>

Both are true, so

(p ∧ q)’ ≡ p’ ∨ q’

6 0
4 years ago
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