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2 years ago

Find the area of a classroom whose length 12m and width 7m

2 answers:

7 0

Good Morning, how are you?

When you are trying to find the area of a rectangle, its Length x Width = area.

So, in this case, your answer is 12 x 7 = 84 m. Keep in mind to put the m after. :)

Hope this helped. :)

uranmaximum [27]2 years ago

6 0

Area of classroom (rectangular ) = length × width ( also known as breadth )

so....... 12 × 7 = 84 meter squared

HOPE IT HELPED !!

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Two lines are represented by the equations -1/2y=6x+10 and y=mx for which value of m will the lines be parallel

hjlf

Answer:

-12

Step-by-step explanation:

So to start we need to know what makes a line parallel. In an equation we know that for lines to be parallel they must have the same slope(m).

Then, we need to know the slope-intercept form of an equation. The slope intercept form is $y=mx+b$ where $m$ is the slope of the line and $b$ is the y-intercept. In this problem where can see the second equation is already in this form.

Now that we know we need to find the slope, and we know that the second equation is in slope-intercept form we're going to convert the fist equation into the correct form.

To do this, we know we need to make sure $y$ is the only thing on the left side of the equal sign. Currently, on the left side of the equal sign we have $-\frac{1}{2} y$ so we have to divide both sides by $-\frac{1}{2}$ to get $y=-12x -20$

Now that we have it converted to slope-intercept form, we are going to look for what represents the slope or $m$ in the equation. In this case the slope would be -12, so any line with a slope of -12 will be parallel.

8 0

2 years ago

I could use some help with this question?

slega [8]

Answer:

Step-by-step explanation:

if I divide the units of the scaled rectangle by the original you will get

$18 \div 9 = 2 \\ 6 \div 3 = 2$

3 0

2 years ago

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Tommy bought one dozen donuts. He gave one-sixth of the donuts to his wife. He then gave one-fifth of the remaining donuts to hi

statuscvo [17]

Answer:

Step-by-step explanation:

1/6 of 12 is 2

12 - 2 = 10

1/5 of 10 is also 2

10 - 2 = 8

Tommy took 8 donuts to work.

6 0

2 years ago

How do you factor 5x^2b^2 + 14xb^2 -3b^2

Monica [59]

Answer:

$5b^2(x-0.2)(x+3)$

Step-by-step explanation:

The first thing that I noticed was that all of the terms had a common factor of $b^2$ . You can therefore factor that out first:

$5x^2b^2 + 14xb^2 -3b^2= \\\\b^2(5x^2+14x-3)$

Now, you have a quadratic equation inside the parentheses. Factoring, you find that the roots are -0.2 and 3, meaning that you can further factor this expression to be:

$5b^2(x-0.2)(x+3)$

Hope this helps!

3 0

2 years ago

What is the common denominator for ¾ and 9/10?

Contact [7]

Answer:

20 so the fractions would be 3/4=15/20 and 9/10=18/20

Step-by-step explanation:

because 4 x 5 = 20 and 10 x 2 = 20

8 0

2 years ago

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