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goldenfox [79]
3 years ago
11

What is the area of a rectangle with length 5 inch and width 2.7 inch

Mathematics
1 answer:
Paha777 [63]3 years ago
7 0
The area of the rectangle would be 13.5 inches.
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Write the following expression as a simplified polynomial in standard form.
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Answer:

x^2-5x+33

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Question attached plz answer
Bezzdna [24]

Answer:

x = - 2.5

Step-by-step explanation:

Given that the sketch represents

y = x² + bx + c

The graph crosses the y- axis at (0 , - 14), thus c = - 14

y = x² + bx - 14

Given the graph crosses the x- axis at (2, 0), then

0 = 2² + 2b - 14

0 = 4 + 2b - 14 = 2b - 10 ( add 10 to both sides )

10 = 2b ( divide both sides by 2 )

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y = x² + 5x - 14 ← represents the graph

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Equate each factor to zero and solve for x

x + 7 = 0 ⇒ x = - 7

x - 2 = 0 ⇒ x = 2

The x- intercepts are x = - 7 and x = 2

The vertex lies on the axis of symmetry which is midway between the x- intercepts, thus

the x- coordinate of the turning point is \frac{-7+2}{2} = \frac{-5}{2} = - 2.5

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