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2 years ago

Find the value of L in the equation. s=(n÷2)(a+L)

Mathematics

1 answer:

Anon25 [30]2 years ago

7 0

Answer:

2s/n-a=L

Step-by-step explanation:

So first we divide (n÷2) so it will be s/(n÷2) =a+L. Next we subtract L and get s/(n÷2)-a. That's not it yet, since 2 is being divided in the denominator, we have to reciprocal it meaning multiply, it to the top value. So it would 2s/n-a=L. But you can just leave it like that if you desire and your teacher doesn't mind.

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the length of a rectangle is 3 times the width. The perimeter is 44 cm. What are the dimensions of the rectangle?

Gnom [1K]

Hello there
We can say that,
The length = 3u
The width= 1u
3u + 1u +3u +1u= 44cm
8u= 44cm
1u= 44cm / 8
= 5.5cm
Length= 5.5 cm x 3
=16.5 cm
Width= 5.5 cm

Hope this helps :))

~Top

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3 years ago

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Afina-wow [57]

Answer:

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Step-by-step explanation:

Use the slope formula to get the slope for each line. Then plug either of the x and y coordinates into the formula y= mx + b and also plug in the slope that you just found and solve for b.

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3 years ago

This is the right table my bad. Need the equation

Mamont248 [21]

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3 years ago

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43.4 + 63.7 × ( -0.23)

LenKa [72]

Answer:

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2 years ago

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Determine the domain and range of the function f(x)= 3x+2. Also, state the intervals where the function f(x)= 3x+ 2 is increasin

aev [14]

Answer:

Increasing on it's domain $(-\infty,\infty)$ because the slope is positive.

The domain and range are both all real numbers, also known as

$(-\infty,\infty)$ .

Step-by-step explanation:

All domain really means is what numbers can you plug in and you get number back from your function.

I should be able to plug in any number into 3x+2 and result in a number. There are no restrictions for x on 3x+2.

The domain is all real numbers.

In interval notation that is $(-\infty,\infty)$ .

Now the range is the set of numbers that get hit by y=3x+2.

Well y=3x+2 is a linear function that is increasing. I know it is increasing because the slope is positive 3. I wrote out the positive part because that is the item you focus on in a linear equation to determine if is increasing or decreasing.

If slope is positive, then the line is increasing.

If slope is negative, then the line is decreasing.

So y=3x+2 hits all values of y because it is increasing forever. The range is all real numbers. In interval notation that is $(-\infty,\infty)$ .

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3 years ago