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3 years ago

A rectangle has a length of 12 meters and a width of 400 centimeters. What is the perimeter, in cm, of the rectangle?

Mathematics

2 answers:

MariettaO [177]3 years ago

8 0

Answer:

D . 3,200

Step-by-step explanation:

melisa1 [442]3 years ago

3 0

824 cm perimeter. 100% sure now

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What are the x-intercepts of y=sin(x)+1

Stella [2.4K]

Answer:

$x = n\pi + ( { - 1)}^{n} \times \frac{3\pi}{2}$

Step-by-step explanation:

We want to find the x-intercepts of

$y = \sin(x) + 1$

At x-intercept, y=0.

$0 = \sin(x) + 1$

$\sin(x) = - 1$

Take sine inverse of both sides to get:

$x = { \sin }^{ - 1} ( - 1)$

$x = n\pi + ( { - 1)}^{n} { \sin }^{ - 1} ( 1)$

The x-intercepts are:

$x = n\pi + ( { - 1)}^{n} \times \frac{3\pi}{2}$

for n being an integer

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3 years ago

A researcher measures daily driving distance from college and weekly cost of gas for a group of commuting college students. What

juin [17]

Answer:

There is a positive correlation between these two variables.

Step-by-step explanation:

Positive correlation is an association amid two variables in which both variables change in the same direction.

A positive correlation occurs when one variable declines as the other variable declines, or one variable escalates while the other escalates.

As the distance covered by the vehicle increases the amount of gas consumed also increases. Thus, the weekly cost of gas will also increase.

Thus, there is a positive correlation between these two variables.

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4 years ago

Solve for the following system by using Elimination4x-2y=86x+6y=30

Ilia_Sergeevich [38]

System

$\begin{gathered} 4x-2y=8 \\ 6x+6y=30 \end{gathered}$ $\begin{gathered} 3(4x-2y)=8 \\ 6x+6y=30 \\ \\ 12x-6y=24 \\ + \\ 6x+6y=30 \\ \\ 12x+6x-6y+6y=24+30 \\ 18x=54 \\ x=3 \end{gathered}$

Now, for y

$\begin{gathered} 4x-2y=8 \\ -2y=8-4x \\ 2y=4x-8 \\ y=\frac{4x-8}{2} \\ y=\frac{4\cdot3-8}{2} \\ y=\frac{12-8}{2} \\ y=\frac{4}{2} \\ y=2 \end{gathered}$

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1 year ago

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Roman55 [17]

Answer:

4a2−b2−2a+b, there are no factorable rational numbers.

Step-by-step explanation:

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3 years ago

Evaluate -4-(-12) <br> step by step

Misha Larkins [42]

Answer:

Step-by-step explanation:

-4-(-12)

If you take away a negative that means you are adding so you do -4+12 because there is a double negative.

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3 years ago

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