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3 years ago

Please help me i will mark you brainliestttttttttttttttt

Mathematics

1 answer:

allsm [11]3 years ago

7 0

Answer:

28 :)

Step-by-step explanation:

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Name two different numbers that round to 8.21 when rounded to the nearest hundredth

Tanzania [10]

There's an infinite amount of numbers that round to 8.21 when rounded to the nearest hundredth, for example:

8.211
8.209
8.214
8.21145683204
etc...

Just pick whichever two numbers you like :)

8 0

4 years ago

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What type of conic is given by the equation 4x^2+9y^2=36

zvonat [6]

Answer:

This is equation of ellipse

Step-by-step explanation:

we are given

$4x^2+9y^2=36$

We can see that right side is 36

so, we can make right side as 1 by dividing both sides by 36

$\frac{4x^2+9y^2}{36} =\frac{36}{36}$

$\frac{4x^2+9y^2}{36} =1$

$\frac{4x^2}{36}+\frac{9y^2}{36} =1$

we can simplify it

$\frac{x^2}{9}+\frac{y^2}{4} =1$

we can rewrite it as

$\frac{x^2}{3^2}+\frac{y^2}{2^2} =1$

now, we can compare it with standard equation of ellipse

$\frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2} =1$

we can see that both equations are similar

so, this is equation of ellipse

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3 years ago

What is an equation of the line that is perpendicular to y=-3/4x+6 and passes through the point (3,9)

goldenfox [79]

Answer:

$y=\frac{4}{3}x+5$

Step-by-step explanation:

The line y= -3/4+6 in the comments has slope -3/4. A perpendicular line will have the negative reciprocal of -3/4. It's 4/3.

To write the equation, substitute 4/3 and the point (3,9) into

$y-y_1 = m(x-x_1)$

$y-9=\frac{4}{3}(x-3)\\\\y-9=\frac{4}{3}x -\frac{4*3}{3}\\\\y-9=\frac{4}{3}x-4\\\\y=\frac{4}{3}x+5$

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4 years ago

Find the Lowest Score bounding upper 5%. The mean is 35 and the SD is 7

nydimaria [60]

Answer:

get the mean deviation

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3 years ago

9) 19, 17, 15, 13, 11,9,7<br>Rule =

hodyreva [135]

Answer:

- 2

Step-by-step explanation:

It's a simple rule, all you are doing is subtracting 2 every time.

3 0

3 years ago

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