2 years ago

Find the area of 20mm 14mm 32mm

Mathematics

1 answer:

lora16 [44]2 years ago

4 0

Answer:

42 is an area

Step-by-step explanation:

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3 years ago

The height of the tunnel at the center is 35ft, and the vertical clearance must be 21 ft at a point of 8ft from the center. Find

Zinaida [17]

Answer:

y=-0.215x^2+35

Step by Step:

Let, $h=0$ , $k=35$ , $x=8$ , $y=21$

We know that, the general equation of the parabola.

$y-k = a(x-h)^2$

$\Rightarrow y=a(x-h)^2+k .........(i)$

Substitute the value of $h, k, x, y$ in equation $(i)$ and find the value of $a.$

$21=a(8-0)^2+35$

$\Rightarrow 21=a\times 8^2+35$

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$\Rightarrow 64a=-14$

$\Rightarrow a=\frac{-14}{65}$

$\Rightarrow a=-0.215$

Hence, the equation of the parabola is:

$y=-0.215x^2+35$

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2 years ago

Find f(2) if f(x) = 2x + 1

Fantom [35]

Answer: f(2)=5

Step-by-step explanation:

f(2)=2(2)+1=5

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Step-by-step explanation:

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