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3 years ago

26% rounds to 25%, which is equivalent to what fraction?

Mathematics

2 answers:

Anna [14]3 years ago

5 0

25% is the same as 1/4.

kodGreya [7K]3 years ago

3 0

25% is equivalent to 1/4.

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Explain the meaning. A scale on a map is 1mm:20 miles

ella [17]

Every millimeter on the map is equivalent to 20 miles on eartg

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3 years ago

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4. If 60 marks is 40%, what is full<br> marks?

Gwar [14]

Answer:

150

Step-by-step explanation:

First of all divide the given marks with given percent and divide it by 100

60/40*100=150

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2 years ago

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Give the equation of the line in slope intercept form. y = 3x + [?] =

Ray Of Light [21]

Answer:

See below:

Step-by-step explanation:

Hello! I hope you are having a nice day. My name is Galaxy and I will be helping you today.

We can solve this problem in a single step, we just need to know how equations like this are set up.

Equations in slope intercept form are set up in $y=mx+b$ form. With $m$ being the slope of the line, and $b$ being the y intercept.

In your problem, we need to find the value of $b$ , which is the y intercept.

The y intercept is what is y when x is zero. We can find that by looking at the graph supplied.

When we look at the line, we can see that it hits the x axis when y is negative two, therefore the intercept is $(0,-2)$ .

Since we know that, we can reconstruct our equation with this information, we already know the slope so we can add in -2 to get our answer.

$y=3x-2$

This would be our final answer.

Cheers!

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2 years ago

Can someone please give me the (Answers) to this? ... please ...

seropon [69]

Answer:

For A1-4 I am pretty sure the answers are: Question 1.) 3/1 (or 3) Question 2.) -6/6 (also can be written as -1) Question 3.) 9/5 and Question 4.) -4/3

Step-by-step explanation:

For Question 1 you just rise 3 and run 1 which gets you 3/1

For Question 2, to get from coordinate 2 to 8 you add 6, and to get from coordinate -10 to -16 you subtract 6. This leaves you with -6/6 (or -1)

For Question 3, the slope is written within the equation (y=9/5x-5) the 9/5 is the slope.

For Question 4, you take 4x+3y=6 and turn it into y=mx+b form, to do so you subtract 4x on both sides leaving you with 3y=-4x+6. Then you divide 3 on both sides, y=-4x/3 + 6/3. Then the result would be y=-4/3x+2 which means that the slope is -4/3.

I am not sure if these are all correct, but i hope it helps! :)

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2 years ago

Please help me with the below question.

o-na [289]

Given that

$\vec r(t) = \left\langle 4t e^{-t}, 8 \arctan(t), 8 e^t \right\rangle$

we first differentiate with respect to t to get the tangent vector, $\vec T(t)$ :

$\vec T(t) = \dfrac{d\vec r}{dt} = \left\langle (4-4t) e^{-t}, \dfrac8{1+t^2}, 8e^t \right\rangle$

At t = 0, the tangent vector is

$\vec T(0) = \left\langle 4, 8, 8 \right\rangle$

To get the <em>unit</em> tangent vector, multiply this by 1/(norm of tangent vector) :

$\|\vec T(0)\| = \sqrt{4^2 + 8^2 + 8^2} = \sqrt{144} = 12$

Then the unit tangent vector is

$\dfrac{\vec T(0)}{\|\vec T(0)\|} = \left\langle \dfrac4{12}, \dfrac8{12}, \dfrac8{12}\right\rangle = \boxed{\left\langle\dfrac13, \dfrac23, \dfrac23\right\rangle}$

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1 year ago