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viva [34]
3 years ago
6

Which phrase represents the algebraic expression for r + 12?

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
7 0
The answer to your question is D
Softa [21]3 years ago
6 0

Answer: D) The sum of a number and twelve

==================================================

Explanation:

r = an unknown number

r+12 = sum of the unknown number and 12

The term "sum" refers specifically to the result of an addition problem.

As another example, saying 2+3 = 5 has a sum of 5.

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Which of the following equations is equivalent to x - y = 6?
Agata [3.3K]
I believe the answer would be A. 2x-y=6 :)
8 0
3 years ago
Read 2 more answers
Use a truth table to verify the first De Morgan law (p ∧ q)’ ≡ p’ ∨ q’.
Nutka1998 [239]

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
3 years ago
3643 in scientific notation
Lesechka [4]
3.643 x 10^3
move the decimal in between the first and second number
However many times you move the decimal, that is you exponent.
6 0
3 years ago
Translation of a 2D shape..<br> Due in tomorrow, please help! Xx
bazaltina [42]
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4 0
3 years ago
Your subtotal at the store was $72.29. You have a 40% off coupon. If the sales tax rate is 9.5%, what is the total price for you
harkovskaia [24]

Answer:

31.93

Step-by-step explanation:

you prob just want the answer but here

1. Find 40% of 72.29 (29.16)

2. find 9.5% of 29.16 that would be $2.77

3. add $2.77 to 29.16

7 0
3 years ago
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