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bekas [8.4K]
3 years ago
11

Please help. Find the value of x

Mathematics
1 answer:
enot [183]3 years ago
8 0

21x is 21x im glad that I can help you

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A crew charges $750 for 9 hours of work. For 14 hours, they charge $1200. Write an equation for this situation.
allochka39001 [22]

Answer1,200+750+14+9=__1,973__

Step-by-step explanation:

8 0
3 years ago
Distribute 3x ( -x + 4).​
Ira Lisetskai [31]
I think it should be -3x^2+4 not positive 3
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3 years ago
Use truth tables to show that the following statements are logically equivalent. ∼ P ⇔ Q = (P ⇒∼ Q)∧(∼ Q ⇒ P)
Alina [70]

Answer:  The given logical equivalence is proved below.

Step-by-step explanation:  We are given to use truth tables to show the following logical equivalence :

∼ P ⇔ Q ≡ (P ⇒∼ Q)∧(∼ Q ⇒ P)

We know that

two compound propositions are said to be logically equivalent if they have same corresponding truth values in the truth table.

The truth table is as follows :

P     Q     ∼ P     ∼Q   ∼ P⇔ Q    P ⇒∼ Q    ∼ Q ⇒ P     (P ⇒∼ Q)∧(∼ Q ⇒ P)

T     T         F        F             F            F                   T                       F

T     F         F        T             T             T                   T                       T

F     T         T        F             T            T                   T                       T

F     F         T        T             F            T                   F                       F

Since the corresponding truth vales for ∼ P ⇔ Q and (P ⇒∼ Q)∧(∼ Q ⇒ P) are same, so the given propositions are logically equivalent.

Thus, ∼ P ⇔ Q ≡ (P ⇒∼ Q)∧(∼ Q ⇒ P).

8 0
3 years ago
Choose the appropriate transformation for the figure<br> Picture above ***
kirill115 [55]
Answer :

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Which two inequalities can be used to find the solution to this absolute value inequality?
yanalaym [24]

Answer: 3(x+4)<-12 and x+4<4

Step-by-step explanation:

3|x+4| - 5 < 7

5 0
2 years ago
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