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4 years ago

Convert 4 radians to degrees

Mathematics

1 answer:

Lisa [10]4 years ago

4 0

The answer is 229.183118

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A plane travels 240 miles on a bearing of N 10° E and then changes its course to N 67° E and travels another 180 miles. Find the

aksik [14]

Answer:

Step-by-step explanation:

Given

Plane travels 240 miles $10^{\circ}$ East of North

Position vector $\vec{r_1}=240(\cos(10)\hat{j}+\sin (10)\hat{i})$

Then the plane travels 180 miles $67^{\circ}$ East of North

$\vec{r_{21}}=180(\cos(67)\hat{j}+\sin (67)\hat{i})$

$\vec{r_2}=\vec{r_{21}}+\vec{r_1}$

$\vec{r_2}=\left ( 240\sin (10)+180\sin (67)\right )\hat{i}+\left ( 240\cos (10)+180\cos (67)\right )\hat{j}$

$\vec{r_2}=\left ( 207.36\right )\hat{i}+\left ( 306.68\right )\hat{j}$

Total distance traveled in North direction is given by coefficient of \hat{j}

i.e. North $=306.68\ miles\approx 307\ miles$

Total distance traveled in East direction is given by coefficient of \hat{i}

East $=207.36\ miles\approx 207\ miles$

4 0

3 years ago

When Sylvie verified the solution on a graph, the lines intersected at one point. What was her error? She forgot to put both equ

iren [92.7K]

Answer:

Step-by-step explanation:

Got it right

3 0

3 years ago

Read 2 more answers

Which expression is equivalent to (8^2)-4 ??

Tamiku [17]

Answer:

Option C $\frac{1}{8*8*8*8*8*8*8*8}$

Step-by-step explanation:

we have

$(8^{2})^{-4}$

Remember that

$(a)^{-b} = \frac{1}{a^{b}}$

$(a^{b})^{c}=(a)^{b*c}$

therefore

$(8^{2})^{-4}=(8)^{-4*2}=(8)^{-8}$

$(8)^{-8} = \frac{1}{8^{8}}$

$\frac{1}{8^{8}}=\frac{1}{8*8*8*8*8*8*8*8}$

3 0

3 years ago

Read 2 more answers

And why is it a function

andreyandreev [35.5K]

It's not a function because the x value 2 has two y values

8 0

3 years ago

The solution for the system equations 8x-6y=-32 and -8x+5y=36

Ghella [55]

Answer:

x=47, y=68

Step-by-step explanation:

Add the two equations. Then we get

-y=-68

y=68

Substituting the value of y in the first equation,

8x-6(68)=-32

8x-408=-32

8x=376

x=47

6 0

3 years ago