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3 years ago

I need this on khan academy.

Mathematics

1 answer:

Alja [10]3 years ago

7 0

9514 1404 393

Answer:

A. (1 2/3, 4 2/3)

Step-by-step explanation:

If you graph the equations, you see the lines intersect at the solution point:

(x, y) = (1 2/3, 4 2/3)

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Which expression is equivalent to (9x2y6)−1/2?

galben [10]

Answer:

B. 1/(3xy^3)

Step-by-step explanation:

The minus sign can be dealt with first, then the root taken.

$\left(9x^{2}y^{6}\right)^{-\frac{1}{2}}=\dfrac{1}{\sqrt{9x^{2}y^{6}}}\\\\=\dfrac{1}{\sqrt{9}\sqrt{x^2}\sqrt{y^6}}=\dfrac{1}{3xy^3}$

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3 years ago

Loreto quería decorar un viejo tambor metálico para usarlo de paragüero. Para ello, contaba con un grueso cordón que pretendía p

Andre45 [30]

Answer:

u should put the question in English to so English people can also help

6 0

3 years ago

During quarantine your goal was to do a total of 36 pull-ups and push ups in a minute. You end up doin 8 times as many push-ups

Semmy [17]

Answer:

36 times 8 = 288

5 0

3 years ago

Read 2 more answers

Is (0,0) a solution to 6x - 7y > 20 please include the steps!

leonid [27]

Answer:

No.

Step-by-step explanation:

To determine if (0,0) is a solution to the inequality, substitute 0 for x and 0 for y and check to see. Thus:

$6x-7y>20$

Substitute 0 for x and 0 for y:

$6(0)-7(0)\stackrel{?}{>}20$

Multiply:

$0-0\stackrel{?}{>}20$

Subtract:

$0\not>20$

So, (0,0) is <em>not</em> a solution.

And we're done!

8 0

3 years ago

Read 2 more answers

The local hamburger restaurant is famous for how quickly they can assemble a burger. The restaurant advertises that its constant

melisa1 [442]

The gievn equation is ,

$t=11.3h\ldots(1)$

where t is the time in seconds and h is the no.of hamburgers assembled.

put h = 2 in equation (1).

$\begin{gathered} t=11.3\text{ (2)} \\ t=22.6 \end{gathered}$

blank A assembles 2 hamburges in 22.6 seconds.

put h = 3 in equation (1)

$\begin{gathered} t=11.3(3) \\ t=33.9 \end{gathered}$

blank B assembles 3 hamburgers in 33.9 seconds.

put h = 5 in equation (1)

$\begin{gathered} t=11.3(5) \\ t=56.5 \end{gathered}$

blank C assembles 5 hamburgers in 56.5 seconds.

put h = 8 in equation (1)

$\begin{gathered} t=11.3(8) \\ t=90.4 \end{gathered}$

blank D assembles 8 hamburgers in 90.4 seconds.

3 0

1 year ago