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3 years ago

What is the value of w in the following formula when L=26 cm and p=80cm? P=2l+2w

Mathematics

1 answer:

n200080 [17]3 years ago

4 0

P=2L+2W

80=2*26+2W

so then you could find the missing number of W which is

W=14

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Grace [21]

-3(y+2)^2 - 5 + 6y
= -3(y^2 + 4y + 4) - 5 + 6y
= -3y^2 - 12y - 12 - 5 + 6y
= -y^2 - 6y - 17

Answer
(-1) y^2 + (-6) y + (-17)

3 0

3 years ago

Help plz giving out brianlest

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3 years ago

Han buys an item with a normal price of $15.

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3 years ago

A circle has area 2251 m2. What is its diameter?

Gemiola [76]

Answer:

53.54m

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3 years ago

Given that curl F = 2yi – 2zj + 3k, find the surface integral of the normal component of curl F (not F) over (a) the open hemisp

Dimas [21]

Use Stokes' theorem for both parts, which equates the surface integral of the curl to the line integral along the surface's boundary.

a. The boundary of the hemisphere is the circle $x^2+y^2=9$ in the plane $z=0$ , where the curl is $\mathrm{curl}\vec F=2y\,\vec\imath+3\,\vec k$ . Green's theorem applies here, so that

$\displaystyle\iint_S\mathrm{curl}\vec F\cdot\mathrm d\vec S=\int_{\partial S}\vec F\cdot\mathrm d\vec r=3\int_{x^2+y^2=9}\mathrm d\vec r$

which means the value of the line integral is 3 times the area of the circle, or $27\pi$ .

b. The closed sphere has no boundary, so by Stokes' theorem the integral is 0.

7 0

3 years ago