Answer:
The length of the model is 21 inches
Step-by-step explanation:
we have
The scale factor

That means
1 unit in the model represent 12 units in the actual
1 inch in the model represent 12 inches in the actual
Remember that

so
1 inch in the model represent 1 ft in the actual
The scale factor is

therefore
21 ft in the actual represent 21 inches in the model
we have

Equate the function to zero

Group terms that contain the same variable, and move the constant to the opposite side of the equation

Factor the leading coefficient

Complete the square. Remember to balance the equation by adding the same constants to each side.


the factorization is equal to

therefore
<u>the answer is</u>

Answer:
No sabes????
Step-by-step explanation:
Eres un buro ne sabes jajajajajajajajajajajaja
Answer:
286 mm²
Step-by-step explanation:
A trapezium is given with ,
- Parallel sides = 24mm , 28 mm
- Height = 11mm .
<u>The </u><u>area </u><u>is </u><u>given</u><u> by</u><u> </u><u>:</u><u>-</u><u> </u>
Area = 1/2 ( b₁ + b ₂) × h
Area = 1/2 ( 24 + 28)×11 mm²
Area = 1/2 × 52× 11mm²
Area = 286 mm²
<h3>
<u>Hence </u><u>the</u><u> </u><u>area </u><u>of</u><u> the</u><u> </u><u>trapezium</u><u> </u><u>is </u><u>2</u><u>8</u><u>6</u><u> </u><u>mm²</u><u>.</u></h3>
For this question you can just divide the both sides by -7 so you gonna have :
-7b/-7 = -42/-7 ⇒ b = 6 :)))
i hope this is helpful
have a nice day