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3 years ago

Help me please many thanks :)

Mathematics

1 answer:

telo118 [61]3 years ago

5 0

Answer:

(a) median = 6

(b) median = 14

(d) median = 19

(e) median = 4.5

(f) median = 15

(g) median = 126

(h) median = 345

(i) median = 50

(j) median = 75

Step-by-step explanation:

The median of the ungrouped data is obtained by arranging the numbers from the lowest to the highest number, then select the middle number. If you have two numbers in the middle, sum the two numbers and divide it by 2.

(a) in order: 3 4 4 6 7 8 8

median = 6

(b) in order: 11 11 12 14 15 16 17

median = 14

median = 37

(d) in order: 17 17 18 19 19 21 23

median = 19

(e) in order: 3 3 3 4 5 6 7 9

median = (4 + 5) / 2 = 4.5

(f) in order: 12 14 14 14 16 18 19 20

median = (14 + 16)/2 = 15

(g) in order: 120 121 124 128 129 131

median = (124 + 128)/2 = 126

(h) in order: 321 339 342 345 352 358 362

median = 345

(i) in order: 43 46 49 49 51 51 51 52

median = (49 + 51)/2 = 50

(j) in order: 68 70 73 74 76 77 77 81

median = (74 + 76)/2 = 75

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Vera_Pavlovna [14]

Answer:

Lori spends <u>9 minutes</u> on sketching $\frac{3}{4}$ th of a sketch.

Step-by-step explanation:

Given equation:

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and $s\rightarrow$ number of sketches Lori makes.

We need to calculate the time spent by Lori in sketching $\frac{3}{4}$ of a sketch.

So we know the value of $s=\frac{3}{4}$ as $s$ represents number of sketches and in this situation Lori has sketched only a fraction of a painting.

So we plugin $s=\frac{3}{4}$ in the equation and calculate $m$ which is time spent by Lori sketching $\frac{3}{4}$ th of a sketch.

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3 years ago

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Answer:

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Step-by-step explanation:

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$y^2(y^2-4)=x^2(x^2-5)$

implicit differentiation give us

$\frac{d}{dx}[y^2(y^2-4)=x^2(x^2-5)]\\\\2y\frac{dy}{dx}(y^2-4)+y^2(2y\frac{dy}{dx})=2x(x^2-5)+x^2(2x)\\\\4y^3\frac{dy}{dx}-8y\frac{dy}{dx}=2x^3-10x+2x^3\\\\\frac{dy}{dx}=\frac{4x^3-10x}{4y^3-8y}$

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HOPE THIS HELPS!!

4 0

4 years ago