3 years ago

Which is an equation of line L?

Mathematics

1 answer:

Alborosie3 years ago

3 0

X=2, hope this helps!

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Sally bought 3 popcorns for a total of 18 dollars. How much does each box cost? Write an equation to solve the problem with c as

gregori [183]

Answer:

Answer may be c+18=6

Step-by-step explanation:

If you reverse the equation to 18/3 you will get 6

3 0

3 years ago

Find sin A, round to the nearest hundredth.

almond37 [142]

Answer:

.92

Step-by-step explanation:

sin A = opp side/ hypotenuse

We can use the Pythagorean theorem to find the hypotenuse

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

3^2 +7^2 = AC ^2

9+49 = AC ^2

58 = AC^2

Taking the square root

sqrt(58) = hypotenuse

sin A = 7/sqrt(58)

sin A =.91914503

sin A = .92

6 0

3 years ago

Choose the sentence that uses engaging details to describe Mr. Lee. A:Mr. Lee is an older man with gray hair who smiles a lot. B

LenKa [72]

Answer: Mr. Lee’s entire face crinkles and lights up when he smiles.

Step-by-step explanation:

7 0

3 years ago

1/8 times what equals one

Dvinal [7]

8/1 × 1/8= 1 because 1/8's reciprocal is 8/1

4 0

3 years ago

Read 2 more answers

Evaluate ∫C ysin(z)ds, where C is the circular helix given by the equations x = cos(t), y = sin(t), z = t, 0 ≤ t ≤ 2π. SOLUTION

Ivahew [28]

The line integral is

$\displaystyle\int_Cy\sin z\,\mathrm ds=\int_0^{2\pi}y(t)\sin z(t)\,\sqrt{\left(\frac{\mathrm dx}{\mathrm dt}\right)^2+\left(\frac{\mathrm dy}{\mathrm dt}\right)^2+\left(\frac{\mathrm dz}{\mathrm dt}\right)^2}\,\mathrm dt$

We have

$x=\cos t\implies\dfrac{\mathrm dx}{\mathrm dt}=-\sin t$

$y=\sin t\implies\dfrac{\mathrm dy}{\mathrm dt}=\cos t$

$z=t\implies\dfrac{\mathrm dz}{\mathrm dt}=1$

so the integral reduces to

$\displaystyle\int_0^{2\pi}\sin^2t\sqrt{(-\sin t)^2+\cos^2t+1^2}\,\mathrm dt=\frac{\sqrt2}2\int_0^{2\pi}(1-\cos2t)\,\mathrm dt=\boxed{\frac\pi{\sqrt2}}$

5 0

4 years ago