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3 years ago

Expand and combine like terms. (x+3)(x+4)

Mathematics

1 answer:

ivanzaharov [21]3 years ago

8 0

Answer:

x^2 +7x+12

Step-by-step explanation:

(x+3)(x+4)

FOIL

first x*x= x^2

outer: 4x

inner:3x

Last 3*4=12

Add together

x^2+3x+4x+12

Combine like terms

x^2 +7x+12

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What is the value of y? Y Y 60 O A. 120° B. 60° C. 40° O D. 30°

Grace [21]

Answer:

B. 60°

Step-by-step explanation:

1. The measure of all angles in a triangle sum up to 180°. This means that y + y + 60 = 120.

2. (Solving)

Step 1: Simplify both sides of the equation.

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Step 3: Divide both sides by 2.

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Step 4: Check if solution is correct.

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3 years ago

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Answer:

$\mathfrak {last \:option }$

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Step-by-step explanation:

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