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3 years ago

Just need to know the fraction

Mathematics

2 answers:

Reptile [31]3 years ago

7 0

<h3>Answer: 1/2</h3>

The midsegment is always exactly half as long compared to the side it's parallel to.

Put another way, the longer side (4x+20) is twice long as the midsegment (3x).

LiRa [457]3 years ago

3 0

Answer:

The answer your looking for is 1/2

Step-by-step explanation:

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Plz very urgent I need help on this question

iragen [17]

You have to find the common divider, which is twelve in this case. So, when you multiply all of them with numbers to get twelve, and add them together, you will get:

12/12 + 6/12 + 9/12 + 2/12 = 29/12.

5 0

3 years ago

What is the value of k in the equation 5k-2k=12

kenny6666 [7]

Value of k=4
5(4)=20
2(4)=8
20-8=12

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3 years ago

Solve for X <br> Please help

Elan Coil [88]

Answer:

Step-by-step explanation:

41 + 4x = 7x + 5(Exterior angle theorem)

36 = 3x

Hence x = 12

8 0

2 years ago

How to evaluate question number 4

ANTONII [103]

There are 2 ways that spring to mind.

One is to use the definition of the derivative at a point:

$f'(c)=\displaystyle\lim_{x\to c}\frac{f(x)-f(c)}{x-c}$

In this case, $c=0$ and $f(x)=\sqrt{5-x}$ . Then

$f'(x)=-\dfrac1{2\sqrt{5-x}}\implies f'(0)=\displaystyle\lim_{x\to0}\frac{\sqrt{5-x}-\sqrt5}x=-\dfrac1{2\sqrt5}$

- - -

If you don't know about derivative yet (I would think you do, considering this is for a midterm in AP Calc, but I digress), the other way is to rely on algebraic manipulation. Multiply the numerator and denominator by the conjugate of the numerator to get

$\dfrac{\sqrt{5-x}-\sqrt5}x\cdot\dfrac{\sqrt{5-x}+\sqrt5}{\sqrt{5-x}+\sqrt5}=\dfrac{\left(\sqrt{5-x}\right)^2-\left(\sqrt5\right)^2}{x\left(\sqrt{5-x}+\sqrt5\right)}=-\dfrac x{x\left(\sqrt{5-x}+\sqrt5\right)}=-\dfrac1{\sqrt{5-x}+\sqrt5}$

This is continuous at $x=0$ , so the limit is the value of the expression at $x=0$ :

$\displaystyle\lim_{x\to0}\frac{\sqrt{5-x}-\sqrt5}x=-\lim_{x\to0}\frac1{\sqrt{5-x}+\sqrt5}=-\frac1{2\sqrt5}$

5 0

3 years ago

Which equation represents the line that passes through the points (2,1) and (4,-5)

mylen [45]

Y=-3x+7

Mark brainliest please

Hope this helps you

5 0

2 years ago