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3 years ago

you are asked to find the mean of the data shown in the stem and leaf plot. which tools are appropriate?

Mathematics

2 answers:

Elina [12.6K]3 years ago

8 0

paper and pencil to record work

Travka [436]3 years ago

4 0

The answer is D because you have to add and divide

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Missing fraction plus1/3 equals 3/4

Alenkasestr [34]

Answer:

2/3 + 1/3 = 3/4

Step-by-step explanation:

you have 3/4 you can minus the 3/4 by 1/4 to get 2/4 then you can check by adding 2/4 and 1/4 together to get 3/4.

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2 years ago

What is the difference of the polynomials? (12x^2-11y^2-13x)- (5x-14y^2-9x)

vova2212 [387]

The Answer is A... your welcome

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3 years ago

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Solve this answer 5/3 + 2/5

salantis [7]

5/3+2/5=25/15+6/15=31/15=2 1/15

2 1/15 or 31/15

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3 years ago

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(3.1 · 10² ) (2 · 10³) Write in Scientific Notation.

Nonamiya [84]

Covert into scientific notation?

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3 years ago

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Find gradient xe^y + 4 ln y = x² at (1, 1)

cricket20 [7]

$xe^y+4\ln y=x^2$

Differentiate both sides with respect to x, assuming y = y(x).

$\dfrac{\mathrm d(xe^y+4\ln y)}{\mathrm dx}=\dfrac{\mathrm d(x^2)}{\mathrm dx}$

$\dfrac{\mathrm d(xe^y)}{\mathrm dx}+\dfrac{\mathrm d(4\ln y)}{\mathrm dx}=2x$

$\dfrac{\mathrm d(x)}{\mathrm dx}e^y+x\dfrac{\mathrm d(e^y)}{\mathrm dx}+\dfrac4y\dfrac{\mathrm dy}{\mathrm dx}=2x$

$e^y+xe^y\dfrac{\mathrm dy}{\mathrm dx}+\dfrac4y\dfrac{\mathrm dy}{\mathrm dx}=2x$

Solve for dy/dx :

$e^y+\left(xe^y+\dfrac4y\right)\dfrac{\mathrm dy}{\mathrm dx}=2x$

$\left(xe^y+\dfrac4y\right)\dfrac{\mathrm dy}{\mathrm dx}=2x-e^y$

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2x-e^y}{xe^y+\frac4y}$

If y ≠ 0, we can write

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2xy-ye^y}{xye^y+4}$

At the point (1, 1), the derivative is

$\dfrac{\mathrm dy}{\mathrm dx}\bigg|_{x=1,y=1}=\boxed{\dfrac{2-e}{e+4}}$

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3 years ago