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CaHeK987 [17]
3 years ago
12

Find a formula for a function f(x,y,z) whose level surface f=81 is a sphere of radius 9, centered at the origin.

Mathematics
1 answer:
Mrrafil [7]3 years ago
4 0

81(9 \times 8 = 72 + 9) = 81
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Aran moved a cone-shaped pile of sand that had a height of 4 ft and a radius of 3.2 ft. He used all of the sand to fill a cylind
Yuliya22 [10]
So volue of a cone=area of circle base times heigt times 1/3

height=4
area of base=pi times r^2
area of abse=aprox 3.14 times 3.2^2=32.1536
32.1536 times 4 times 1/3=32.1536 times 4/3=42.87 the amount of sand is 42.9 ft^3
5 0
3 years ago
Need more help again
Fittoniya [83]

Answer:

QSR = 68º

Step-by-step explanation:

TSQ + QSR = TSR

15x + (10x - 2) = 173

Combine like terms

25x = 175

Divide both sides by 25

x = 7

QSR = 10x - 2

QSR = 10(7) - 2

QSR = 68º

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7Bx%2B1%7D" id="TexFormula1" title="\frac{x}{x+1}" alt="\frac{x}{x+1}" align="a
navik [9.2K]

Answer:

Because i have no more information i assume you would like it to be solved.

x < -1 or -1/3 < x < 1

4 0
3 years ago
Math question help me
JulsSmile [24]

Answer:

3 grams

Step-by-step explanation:

on the left side there is 3 circles and every circle is 3 grams, so there is 9 grams plus 6 squares for 2 grams its 12 . 9+12 =21 and two triangles with x mass

on the right side there is 2 circles , 2×3 = 6, and 3 squares, 3×2 = 6. 6+6=12 +5x

both sides are equal so we have

21+2x=12+5x

21-12=5x-2x

9=3x

x=3

6 0
3 years ago
I need help with this question please answer as soon as possible
Setler79 [48]

Answer: I think that the answer is D

Step-by-step explanation:

3 0
3 years ago
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