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2 years ago

Easy points let’s gooo

Mathematics

1 answer:

Alina [70]2 years ago

8 0

Answer:

12 x 10 = 120

120 divided by 2 = 60

Formula of a triangle:

B(base) x H(height) x 1/2(basically dividing by 2)

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Write 177 as a decimal, rounded to the nearest hundredth.

jek_recluse [69]

Answer:

1.77 is the answer.

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2 years ago

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What is 8.61 x 10^-8 in decimal form

KATRIN_1 [288]

Answer:

The answer is 0.0000000861

Step-by-step explanation:

It is quite simple, all you have to do is multiply 8.61 x 10^-8 and you get the answer.

Hope this helps!

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2 years ago

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Evaluate the integral Integral ∫ from (1,2,3 ) to (5, 7,-2 ) y dx + x dy + 4 dz by finding parametric equations for the line seg

n200080 [17]

$\vec F(x,y,z)=y\,\vec\imath+x\,\vec\jmath+3\,\vec k$

is conservative if there is a scalar function $f(x,y,z)$ such that $\nabla f=\vec F$ . This would require

$\dfrac{\partial f}{\partial x}=y$

$\dfrac{\partial f}{\partial y}=x$

$\dfrac{\partial f}{\partial z}=3$

(or perhaps the last partial derivative should be 4 to match up with the integral?)

From these equations we find

$f(x,y,z)=xy+g(y,z)$

$\dfrac{\partial f}{\partial y}=x=x+\dfrac{\partial g}{\partial y}\implies\dfrac{\partial g}{\partial y}=0\implies g(y,z)=h(z)$

$f(x,y,z)=xy+h(z)$

$\dfrac{\partial f}{\partial z}=3=\dfrac{\mathrm dh}{\mathrm dz}\implies h(z)=3z+C$

$f(x,y,z)=xy+3z+C$

so $\vec F$ is indeed conservative, and the gradient theorem (a.k.a. fundamental theorem of calculus for line integrals) applies. The value of the line integral depends only the endpoints:

$\displaystyle\int_{(1,2,3)}^{(5,7,-2)}y\,\mathrm dx+x\,\mathrm dy+3\,\mathrm dz=\int_{(1,2,3)}^{(5,7,-2)}\nabla f(x,y,z)\cdot\mathrm d\vec r$

$=f(5,7,-2)-f(1,2,3)=\boxed{18}$

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3 years ago

May used 2/7 of a ribbon to make bows for her cousins. Now, she has 10/21 of a meter of ribbon left.

leva [86]

Answer:

Step-by-step explanation:

1+1=21

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2 years ago

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Solve the problem below, simplify, add steps 1/3 √21 minus 2/3 √3 * √7

iogann1982 [59]

Do you want square root? And If so then here is the answer:Rewrite √3737 as √3√737.√3√737Multiply √3√737 by √7√777.√3√7√7√737⁢77Simplify. And in the end of, this I put the decimals.√217217The result can be shown in both exact and decimal forms.Exact Form:√217Decimal Form:0.65465367… not sure this answer.

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3 years ago