All categories

3 years ago

Please help 10 points to the one who answers correctly and tells me how to solve it.

Mathematics

1 answer:

Goshia [24]3 years ago

4 0

Y = 76 x = 16 Sorry if I am wrong

Hope it helped

You might be interested in

each month for 6 month, kelsey completes 5 paintings. how many more paintinga does she need to complete before she completed 38

eimsori [14]

She needs to complete 8 more paintings. If you multiply 6 by 5, you get 30. Subtract 30 from 38, you would get 8.

5 0

3 years ago

If a student answered 77 exam questions correctly out of 100, what fraction

mamaluj [8]

Answer: 23%

Step-by-step explanation: 77 + 23 is 100

7 0

3 years ago

Read 2 more answers

Use Stokes' Theorem to evaluate C F · dr where C is oriented counterclockwise as viewed from above. F(x, y, z) = xyi + 5zj + 7yk

REY [17]

By Stokes' theorem,

$\displaystyle\int_C\vec F\cdot\mathrm d\vec r=\iint_S(\nabla\times\vec F)\cdot\mathrm d\vec S$

where $S$ is the surface with $C$ as its boundary. The curl is

$\nabla\times\vec F(x,y,z)=2\,\vec\imath-x\,\vec k$

Parameterize $S$ by

$\vec\sigma(u,v)=u\cos v\,\vec\imath+u\sin v\,\vec\jmath+(8-u\cos v)\,\vec k$

with $0\le u\le9$ and $0\le v\le2\pi$ . Then take the normal vector to $S$ to be

$\vec\sigma_u\times\vec\sigma_v=u\,\vec\imath+u\,\vec k$

Then the line integral is equal to the surface integral,

$\displaystyle\iint_S(\nabla\times\vec F)\cdot\mathrm d\vec S=\int_0^{2\pi}\int_0^9(2\,\vec\imath-u\cos v\,\vec k)\cdot(u\,\vec\imath+u\,\vec k)\,\mathrm du\,\mathrm dv$

$\displaystyle=\int_0^{2\pi}\int_0^9(2u-u^2\cos v)\,\mathrm du\,\mathrm dv=\boxed{162\pi}$

7 0

3 years ago

2 short answer questions.

nasty-shy [4]

For the first one your equation is h(d)=3/7d+5
If d represents the number of days and the question is wanting to know the height after 1 week (7 days) then you would get this equation once 7 is in the place of d
h(d)=3/7(7)+5
When solved you answer is 8 inch.

For the second one your equation is f(x)=75x+250
If x represents the number of weeks and the question is asking how much money Sam will have after 12 weeks then you will get this equation once putting in 12
f(x)=75(12)+250
Once solved you will get the answer $1150

Hope this helps! :)

8 0

4 years ago

diego is collecting dimes and nickels for penny war he has collected $22.25 this represented by the equations 0.10x + 0.05y =22.

dlinn [17]

One solution is x = 1 and y = 443 because

0.10(1) + 0.05(443) = 22.25.

So, (1, 443) is a solution.

Since, 1 dime = 2 nickels,

Increment of 1 in x-value = Decrease of 2 in y-value.

Therefore, the set of possible solutions are {(1, 443), (2, 441), (3, 439), (4, 437),......(222, 1)}

7 0

3 years ago