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3 years ago

HELP ME PLEASE

Mathematics

2 answers:

Zepler [3.9K]3 years ago

8 0

Answer:

Step-by-step explanation:

Given is a table showing the survey for preference of spring/fall by males/females

Table is as follows:

Spring Fall Total

Male 26 19 45

Female 22 29 51

Total 48 48 96

To prepare two way frequency table

Males spring together = 26 hence prob = 26/96

Males fall together = 26 hence prob = 19/96

Feales spring together = 22 hence prob = 22/96

Females spring together = 29 hence prob = 29/96

Spring Fall Total

Male 0.271 0.198 0.469

Female 0.229 0.302 0.531

Total 0.500 0.500 1.00

GrogVix [38]3 years ago

7 0

Male 0.271 0.198
Female 0.229 0.302

I think that's right because that's what my quiz said

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(-x, -y, -z) the vector form (x, y, z) to the origin, in the direction of the greatest increase.

<h3>How to calculate temperature?</h3>

The quantity or amount of radiation contained in material or item, as measured by a temperature or sensed by touch and stated on a numerical scale.

The temperature T of a ball bearing is inverse to the length first from the origin, which we consider to be the center of the ball. The temperature at the exact location

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Where k is constant, then we have

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k = 510

$T(x,y,z)= \dfrac{510}{(x^2 +y^2+z^2)^{1/2}}$

Then we have

$\rm \triangledown T = \left ( -\dfrac{510x}{(x^2 +y^2+z^2)^{1/2}}, -\dfrac{510y}{(x^2 +y^2+z^2)^{1/2}}, \dfrac{510z}{(x^2 +y^2+z^2)^{1/2}} \right )\\\\\\\triangledown T (1, 2, 2) = -\dfrac{510}{27} (1, 2, 2) =-\dfrac{170}{9} (1, 2, 2)$

Then the direction will be from (1, 2, 2) to (4, 3, 5) will be (3, 1, 3)

So u = (3/√19, 1/√19, 3/√19)

Then we get

$\rm \triangledown T \cdot u = \dfrac{-170}{9}(1, 2, 2) \cdot \left (\dfrac{3}{\sqrt{19}}, \dfrac{1}{\sqrt{19}}, \dfrac{3}{\sqrt{19}} \right )\\\\\\\triangledown T \cdot u = - \dfrac{170}{9\sqrt{19}} (3 + 2 + 6)\\\\\\\triangledown T \cdot u = -\dfrac{1870}{9\sqrt{19}}$

The direction of the greatest inverse in the temperature is given by any vector parallel to and having the same direction $\triangledown$ T. (-x, -y, -z) the vector form (x, y, z) to the origin, in the direction of the greatest increase.

More about the temperature link is given below.

brainly.com/question/11464844

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6 0

1 year ago

Rewrite in rectangular form: r=5

SVETLANKA909090 [29]

Answer:

x ^2+ y^ 2 = 25

Step-by-step explanation:

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This is the standard form for a circle whose center is ( 0, 0 ) and the radius is 5.

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2 years ago