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2 years ago

Please help, timed!!

Mathematics

1 answer:

fgiga [73]2 years ago

3 0

Answer:

1,560

it could be letter B

Step-by-step explanation:

I'm not sure about it but yeahh hope that helps

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Tell which measure is greater one inch or one centimeter

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One inch. There are 2.54 cm in an inch.

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Does the blue line appear to be a line of symmetry

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2 years ago

Can you please help me solve for the area

ycow [4]

Answer:

area is equal to 198 cm^2

Step-by-step explanation:

the height h of the left triangle can be obtained by

Pytagoras theorem:

$5^2+h^2=13^2\\25+h^2=169\\h^2=169-25\\h^2=144\\h=\sqrt{144} \\h=12$

the, the area of the left triangle is

$A_1=\frac{5*12}{2} \\A_1=5*6\\A_1=30$

the area of the right triangle is

$A_2=\frac{2*12}{2} \\A_2=12$

and the area of the rectangle in the middle is

$A_3=(13)(12)\\A_3=156$

Por tanto, el area total sera

$A=A_1+A_2+A_3\\A=30+12+156\\A=198$

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2 years ago

Find the first partial derivatives of the function. f(x, y) = ax + by/ cx + dy

Marina86 [1]

The partial derivative of the given function with respect to x is a - by/cx2 + dy/dx In this derivative the terms in the with x is only considered other or treated as constant The partial derivative of the given function with respect to y is b/cx+ d2y/dx. In this derivative the terms in the with x is only considered other or treated as constant

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3 years ago

Use the Shell Method to find the volume of the solid obtained by rotating region under the graph of f(x)=x^2+2 for 0≤x≤5 about x

Irina18 [472]

For each x in the interval 0 ≤ x ≤ 5, the shell at that point has

• radius = 5 - x, which is the distance from x to x = 5

• height = x ² + 2

• thickness = dx

and hence contributes a volume of 2π (5 - x) (x ² + 2) dx.

Taking infinitely many of these shells and summing their volumes (i.e. integrating) gives the volume of the region:

$\displaystyle 2\pi \int_0^5 (5-x)(x^2+2)\,\mathrm dx=2\pi\int_0^5 (10-2x+5x^2-x^3)\,\mathrm dx=\boxed{\frac{925\pi}6}$