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3 years ago

1) Mr. Turnage spent $800 on a new computer. He used his debit card to

Mathematics

1 answer:

Nikitich [7]3 years ago

6 0

Answer:

-62, because he didn't have enough of his money since he was using debit.

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Plzzzz help me

AVprozaik [17]

y=kx

5=10k

k=10-5

k=5 is the correct answer

4 0

3 years ago

What is the simplified form of each expression? 4(20 + 12) ÷ (4 - 3)

kodGreya [7K]

Hi!

<h3>Let's solve this using PEMDAS.</h3><h3>Parentheses - Addition</h3>

4 * 32 ÷ (4 - 3)

<h3>Parentheses - Subtraction</h3>

4 * 32 ÷ 1

<h3>Multiplication</h3>

128 ÷ 1

<h3>Division</h3>

<h2>The answer is 128.</h2>

Hope this helps! :)

-Peredhel

7 0

3 years ago

Use Green's Theorem to evaluate F · dr. C (Check the orientation of the curve before applying the theorem.)F(x, y) = y cos(x) −

Sergeeva-Olga [200]

Notice that <em>C</em> has a clockwise orientation. By Green's theorem, we have

$\displaystyle\int_C\mathbf F(x,y)\cdot\mathrm d\mathbf r=-\iint_D\left(\frac{\partial(xy+x\cos x)}{\partial x}-\frac{\partial(y\cos x-xy)}{\partial y}\right)\,\mathrm dx\,\mathrm dy$

where <em>D</em> is the triangule region with <em>C</em> as its boundary, given by the set

$D=\{(x,y)\mid0\le x\le2\land0\le y\le8-4x\}$

So we have

$\displaystyle\int_C\mathbf F(x,y)\cdot\mathrm d\mathbf r=-\int_0^2\int_0^{8-4x}((y+\cos x-x\sin x)-(\cos x-x\sin x))\,\mathrm dy\,\mathrm dx$

$\displaystyle\int_C\mathbf F(x,y)\cdot\mathrm d\mathbf r=-\int_0^2\int_0^{8-4x}y\,\mathrm dy\,\mathrm dx=\boxed{-\dfrac{64}3}$

5 0

3 years ago

What is 62.3 times .34

Troyanec [42]

Answer: 21.182

Step-by-step explanation:

8 0

4 years ago

Suppose a least-squares regression line is given by modifyingabove y with caret equals 4.302 x minus 3.293y=4.302x−3.293. what

USPshnik [31]

We are given the following relation:

y = 4.302 x – 3.293

To solve for the mean value of y when x = 20, what we have to do is to find for the value of y at x = 20 and the value of y at x = 0. Then we get the average of the two values.

when x = 0

y(0) = 4.302 (0) – 3.293

y(0) = - 3.293

when x = 20

y(20) = 4.302 (20) – 3.293

y(20) = 82.747

The mean value would be:

mean y = [y(20) + y(0)] / [20 + 0]

mean y = [82.747 + (-3.293)] / 20

8 0

3 years ago