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3 years ago

Plz guys step by step with answer

Mathematics

1 answer:

kotegsom [21]3 years ago

6 0

Answer:

Step-by-step explanation:

You can rearrange the equation to make it: 4y=3x-2

The slope right now is 3,but that's not the answer

So you divide the whole equation by 4 (it will give you: y=3/4 x- 0.5

So from that you can see that the slope is 3/4, C

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#27 how do you find the variables in the triabgle?

Stella [2.4K]

x * y * 4 * 6 =

xy * 24 =

24x + 24y

8 0

3 years ago

99 POINT QUESTION PLUS BRAINLIEST!!!

Katyanochek1 [597]

Yay, I like das stuff

I think I learned the washer method
goes like this

$area=\pi \int\limits^a_b {(outercurve)^2-(innercurve)^2} \, dx$

ok, so

actuallly, this is easier

y=49-x^2 and
y=0
see when they intersect again
they intersect at -7 and 7
if we do integrate from -7 to 7, then it wil give 0 (because integration is area under the curve), so note that they are same both sides so integrate from 0 to 7 then double the volume to get both sides
so it can't be C or D
It also can'nt be A because it should not be multipied by 4, it should be multipied by 2

basically, we don't need the washer method
remember, area=pir^2
the disk method then
we are summing up all the radii disks and squareing them
but doubleing them so
$area=2\pi (\int\limits^7_0 {49-x^2} \, dx )^2$
no idea why we need the inside part to be x(49-x^2), that is intersting

6 0

3 years ago

4. The circumference of a circle is 1287. Find the EXACT length of the diameter.

mario62 [17]

Answer:

Length of Diameter; 1297 / π

Step-by-step explanation:

If we are to find the exact length of the diameter, it would pose in terms of π, applying the Circumference Formula π * d, where d ⇒ diameter;

Circumference = π * d,

1287 = π * d,

Length of Diameter; 1297 / π

6 0

3 years ago

Which of the following functions are solutions of the differential equation y+4y+4y=0? A. y(x) =e^-2x B. y(x) = e^+22 C. y(x) =

zmey [24]

Answer: E. y(x) = 0

Step-by-step explanation:

y(x) = 0 is the only answer from the options that satisfies the differential equal y" - 4y' + 4y = 0

See:

Suppose y = e^(-2x)

Differentiate y once to have

y' = -2e^(-2x)

Differentiate the 2nd time to have

y" = 4e^(-2x)

Now substitute the values of y, y', and y" into the give differential equation, we have

4e^(-2x) - 4[-2e^(-2x)] + 4e^(-2x)

= 4e^(-2x) + 8e^(-2x) + 4e^(-2x)

= 16e^(-2x)

≠ 0

Whereas we need a solution that makes the differential equation to be equal to 0.

If you test for the remaining results, the only one that gives 0 is 0 itself, and that makes it the only possible solution from the options.

It is worth mentioning that apart from the trivial solution, 0, there is a nontrivial solution, but isn't required here.

7 0

3 years ago

Which of the following is NOT a requirement in determining whether there is a linear correlation between two variables?Choose t

Pepsi [2]

Answer:

Option d is right

Step-by-step explanation:

We know that a linear correlation is a measure of association between two variables dependent and independent variable. r always lies between -1 and 1 both inclusive. If r is nearer to 0 weak correlation and if |r| is near to 1 there is a stronger correlation.

Positive sign of r implies positive association and negative r implies negative association.

Hence out of the four options given about correlation we have

Option a is right because removal of outliers confirm accurate correlation

Option B is right because only if linear pattern is visible, correlation will be right

Option C is right because only for numerical data r can be calculated

Option d is wrong because correlation lies always between -1 and 1 both inclusive.

4 0

3 years ago

Plz guys step by step with answer​

Plz guys step by step with answer