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3 years ago

If x = 14, what value of y is a solution to this equation?

Mathematics

2 answers:

inysia [295]3 years ago

7 0

i have to put this so it will let me answer it thx

plz brainliest i need it

Slav-nsk [51]3 years ago

4 0

Answer:

Step-by-step explanation:

its c for sure i got it right on a test

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Solve the problem, calculate the line integral of f along h

Over [174]

The curve $\mathcal H$ is parameterized by

$\begin{cases}X(t)=R\cos t\\Y(t)=R\sin t\\Z(t)=Pt\end{cases}$

so in the line integral, we have

$\displaystyle\int_{\mathcal H}f(x,y,z)\,\mathrm ds=\int_{t=0}^{t=2\pi}f(X(t),Y(t),Z(t))\sqrt{\left(\frac{\mathrm dX}{\mathrm dt}\right)^2+\left(\frac{\mathrm dY}{\mathrm dt}\right)^2+\left(\frac{\mathrm dZ}{\mathrm dt}\right)^2}\,\mathrm dt$
$=\displaystyle\int_0^{2\pi}Y(t)^2\sqrt{(-R\sin t)^2+(R\cos t)^2+P^2}\,\mathrm dt$
$=\displaystyle\int_0^{2\pi}R^2\sin^2t\sqrt{R^2+P^2}\,\mathrm dt$
$=\displaystyle\frac{R^2\sqrt{R^2+P^2}}2\int_0^{2\pi}(1-\cos2t)\,\mathrm dt$
$=\pi R^2\sqrt{R^2+P^2}$

You are mistaken in thinking that the gradient theorem applies here. Recall that for a scalar function $f:\mathbb R^n\to\mathbb R$ , we have gradient $\nabla f:\mathbb R^n\to\mathbb R^n$ . The theorem itself then says that the line integral of $\nabla f(x,y,z)=\mathbf f(x,y,z)$ along a curve $C$ parameterized by $\mathbf r(t)$ , where $a\le t\le b$ , is given by

$\displaystyle\int_C\mathbf f(x,y,z)\,\mathrm d\mathbf r=f(\mathbf r(b))-f(\mathbf r(a))$

Specifically, in order for this theorem to even be considered in the first place, we would need to be integrating with respect to a vector field.

But this isn't the case: we're integrating $f(x,y,z)=y^2$ , a scalar function.

7 0

3 years ago

Jerry manages a local car dealership. At the beginning of the month, his lot had m vehicles. During the month his salesman sold

lesya [120]

Answer:

m+p-n

Step-by-step explanation:

given that Jerry manages a local car dealership. At the beginning of the month, his lot had m vehicles. During the month his salesman sold n vehicles, and he purchased p vehicles more

We are to find the number of vehicles did the dealership have at the end of the month

At the end of the month the dealer would have

no of vehicles at the start of the month- sales of the vehicle in that month+Purchase of vechicles during that month

No of vehicles at the start of the month = m

Purchase during month =p

Total vehicles including purchase = m+p

LESS: Vehicles sold in the month = n

No of vehicles at the end = m+p-n

8 0

3 years ago

Help me 1-3 is about geometry

zlopas [31]

♦Which figure has all sides of equal measure but not necessary all angles of equal measure?
Ans: H. Rhombus.
♦Which shape must have opposite sides that are parallel and congruent, and diagonals that are perpendicular bisectors of each other?
Ans: A) Parallelogram.
♦In rectangle ABCD, the slope of.........
Ans: 1/2
Ans:

4 0

3 years ago

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If sqaure root x = 9, then x is between _____. 15 and 20 2 and 3 80 and 90 4 and 5

kolbaska11 [484]

If sqrt x = 9 then x = 9*9 = 81

Answer is between 80 and 90.

3 0

3 years ago

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How do you factor binomials using difference of squares?

Ket [755]

I have solved some examples in the picture