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3 years ago

HURRY TO BE BRAINLIST!! NEED HELP ASAP

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

4 0

Answer:

5.5

Step-by-step explanation:

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How much water will be needed to completely fill a rectangular vase that has a length of 4 inches, a width of 4 inches, and a he

Free_Kalibri [48]

Volume= length x width x height
4 x 4 x 16 = 256

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3 years ago

Patrica scored 80% on a math test. She missed 4 problems. How many problems were on the test?

svet-max [94.6K]

Answer:

Step-by-step explanation:

Patrica got 80% correct. She missed 4 problems, so that must have been the remaining 20% of the test.

Therefore:

4 = 20% x

Percent means out of 100, so:

4 = (20/100) x

4 = 1/5 x

x = 20

There were 20 problems on the test.

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4 years ago

Analyzing a Graph In Exercise, analyze and sketch the graph of the function. Lable any relative extrema, points of inflection, a

Sladkaya [172]

Answer:

$y=(\ln{x})^2$

point of extremity: (1,0)

vertical asymptote: along the y-axis (x = 0)

point of inflection: (e,1)

Solution:

Although all these points can be directly observed from the graph below, but these are the analytical solutions if you're curious!

1) Extreme point can be found by differentiating 'y' once and equating to zero. solving for x:

$\dfrac{dy}{dx}=\dfrac{dy}{dx}((\ln{x})^2)$

$\dfrac{dy}{dx}=2\ln{x}\left(\dfrac{1}{x}\right)$

substitute dy/dx = 0, and solve for x

$0=2\ln{x}\left(\dfrac{1}{x}\right)$

$0=2\ln{x}$

$x=e^0$

$x=1$

use this value of x back in y, to find the y-coordinate of the extreme point

$y=(\ln{1})^2$

$y=0$

The extreme point = (1,0)

2) Differentiate y twice to find the inflection point.

$\dfrac{dy}{dx}=2\ln{x}\left(\dfrac{1}{x}\right)$

$\dfrac{d^2y}{dx^2}=2\ln{x}\left(-\dfrac{1}{x^2}\right)+\left(\dfrac{1}{x}\right)\left(\dfrac{2}{x}\right)$

$\dfrac{d^2y}{dx^2}=\dfrac{2}{x^2}\left(-\ln{x}+1}\right)$

substitute d2y/dx2 = 0, and solve for x

$0=\dfrac{2}{x^2}\left(-\ln{x}+1}\right)$

$0=-\ln{x}+1$

$\ln{x}=1$

$x = e$

use this value of x back in y, to find the y-coordinate of the inflection point

$y=(\ln{e})^2$

$y=1$

The extreme point = (e,1)

6 0

3 years ago

What is the area of square whose side is 12 cm

olga55 [171]

D 48! Explanation: 12x4= 48 because the square has 4 sides

3 0

2 years ago

Read 2 more answers

PLEASE HELP ME WITH THIS!!! I WILL THANK UR ANSWER ND MARK U AS BRAINLIEST!!!!

kakasveta [241]

Answer:

15(output)

16(input)

31(output)

Step-by-step explanation:

in that order

3 0

3 years ago