2 years ago

Half the sum of 5 and a number b algebraic expression

Mathematics

1 answer:

Anika [276]2 years ago

7 0

Answer:

the answer to this is 1/2(5+b)

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3 years ago

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What is the value of x for which m || n? x = 40 x = 5 x = 105 x = 30

QveST [7]

Answer:

(A) x=40

Step-by-step explanation:

Given: It is given that m is parallel to n.

To find: The value of x.

Proof: It is given that m is parallel to n, from the figure it can be seen that 105° and (3x-15)° forms alternate exterior angles which are equal in measure because m is parallel to n.

Thus, $105^{\circ}=3x-15^{\circ}$

⇒ $105^{\circ}+15^{\circ}=3x$

⇒ $120^{\circ}=3x$

⇒ $\frac{120}{3}=x$

⇒ $x=40$

Thus, the value of x is 40, hence option A is correct.

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3 years ago

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I need help with math, I have no idea what I'm doing

Masteriza [31]

A. (x+3)(4x+5)
(multiply x with 4x+5 then multiply 3 with 4x+5)
=4x^2+5x+12x+15
=4x^2+17x+15
b,c, and d are similar

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3 years ago

Half the sum of 5 and a number b algebraic expression​

Half the sum of 5 and a number b algebraic expression