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3 years ago

What do you know about the lengths of the sides of a horizontal cross-section of a pyramid?

Mathematics

2 answers:

4vir4ik [10]3 years ago

5 0

Answer:

A: they are equal in length to the sides of the base

Step-by-step explanation:

spayn [35]3 years ago

4 0

Answer:

B. They are less than the lengths of the sides of the base.

Step-by-step explanation:

Hope this helps

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Use Newton’s Method to find the solution to x^3+1=2x+3 use x_1=2 and find x_4 accurate to six decimal places. Hint use x^3-2x-2=

luda_lava [24]

Let $f(x) = x^3 - 2x - 2$ . Then differentiating, we get

$f'(x) = 3x^2 - 2$

We approximate $f(x)$ at $x_1=2$ with the tangent line,

$f(x) \approx f(x_1) + f'(x_1) (x - x_1) = 10x - 18$

The $x$ -intercept for this approximation will be our next approximation for the root,

$10x - 18 = 0 \implies x_2 = \dfrac95$

Repeat this process. Approximate $f(x)$ at $x_2 = \frac95$ .

$f(x) \approx f(x_2) + f'(x_2) (x-x_2) = \dfrac{193}{25}x - \dfrac{1708}{125}$

Then

$\dfrac{193}{25}x - \dfrac{1708}{125} = 0 \implies x_3 = \dfrac{1708}{965}$

Once more. Approximate $f(x)$ at $x_3$ .

$f(x) \approx f(x_3) + f'(x_3) (x - x_3) = \dfrac{6,889,342}{931,225}x - \dfrac{11,762,638,074}{898,632,125}$

Then

$\dfrac{6,889,342}{931,225}x - \dfrac{11,762,638,074}{898,632,125} = 0 \\\\ \implies x_4 = \dfrac{5,881,319,037}{3,324,107,515} \approx 1.769292663 \approx \boxed{1.769293}$

Compare this to the actual root of $f(x)$ , which is approximately <u>1.76929</u>2354, matching up to the first 5 digits after the decimal place.

4 0

2 years ago

Please solve for me

polet [3.4K]

Answer:

3₹

Step-by-step explanation:

To print cost is 3₹a manager if company print

4 0

3 years ago

True or false and if false what would be the correct term be?

vagabundo [1.1K]

It’s True.. you take the “extreme” variable from each proportion and cross multiply them before setting them equal to the product of the two “means” (which are just the other 2 numbers in the proportions).

3 0

4 years ago

Please help. If you could/want please explain how you got it you don’t have to though no pressure

Stolb23 [73]

Answer:

x = 5.14

Step-by-step explanation:

Both angles are equal so

5x-6 = 11x-42

42-6 = 11x - 5x

36 = 7x

x = 5.14

4 0

3 years ago

Find the equation of a line parallel to x = 7 and passing through the point (2, -5)

photoshop1234 [79]

The answer is: " x = 2 " .
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5 0

3 years ago