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Lubov Fominskaja [6]
3 years ago
6

Need help I don’t understand

Mathematics
2 answers:
den301095 [7]3 years ago
8 0

the ans of your above questions is 58°

pshichka [43]3 years ago
7 0

Answer:

58 degrees

Step-by-step explanation:

subtract 122 from 180

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Can someone help me?
qaws [65]

Answer:

D. All real numbers.

Step-by-step explanation:

This expression  can have any real number assigned to x.

4 0
3 years ago
Read 2 more answers
Find the constant variation for the direct variation given 
Artyom0805 [142]
10y=13x\ \ \ /:10\\\\y=1.3x\\\\constant=1.3\\==================\\f(x)=4.5x\\\\constant=4.5\\==================\\x+y=0\\y=-x\\\\constant=-1
6 0
3 years ago
if you run for 4 hours at 8miles an hour and walk 8 hours at 12 miles an hour how far will you have gone at the end of 12 hours?
Alex787 [66]
What that guy said is right
8 0
2 years ago
Let A and B be two sets. For each of the following equalities, say whether the quality is always true, never true, or sometimes
lions [1.4K]

Answer:

hello your question is incomplete below is the missing parts

(a) A\ (A\B) = B\(B\A)

(b) A\ (BA) = B\(A\B)

answer : A\ (A\B) = B\(B\A) = always true

               A\ (BA) = B\(A\B) = sometimes true and sometimes false

Step-by-step explanation:

(a) A\ (A\B) = B\(B\A). = ALWAYS TRUE

using de Morgan's law to prove this

A\ (A\B) = A\ ( A ∩ B^c )

             = A ∩ ( A^C ∪ B )

             = ( A ∩ A^C ) ∪ ( A ∩ B )

             = Ф ∪ ( A ∩ B )

             = ( A ∩ B )

ALSO : B\(B\A) = attached below is the remaining parts of the solution

B) A\ (BA) = B\(A\B) = Sometimes true and sometimes false

attached below is the prove using De Morgan's law

8 0
3 years ago
3n + 7 - 2<br> Combing like terms
hjlf

Answer:

Simplifying

3n + 7 + -2 = 0

Reorder the terms:

7 + -2 + 3n = 0

Combine like terms: 7 + -2 = 5

5 + 3n = 0

Solving

5 + 3n = 0

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-5' to each side of the equation.

5 + -5 + 3n = 0 + -5

Combine like terms: 5 + -5 = 0

0 + 3n = 0 + -5

3n = 0 + -5

Combine like terms: 0 + -5 = -5

3n = -5

Divide each side by '3'.

n = -1.666666667

Simplifying

n = -1.666666667

Step-by-step explanation:

6 0
3 years ago
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