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4 years ago

which is a flat surface with no thickness that contains many lines and extends without end in the directions of all it's lines

Mathematics

2 answers:

serg [7]4 years ago

6 0

Hello there!

The answer is a plane, much like a grid. Hope this helps!

Bogdan [553]4 years ago

4 0

Your answer is a plane

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Find the length of the radius of the circle whose perimeter is xcm and the area is

Jobisdone [24]

$\bf \stackrel{\textit{perimeter}}{\textit{circumference}}\textit{ of a circle}\\\\ C = 2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=x \end{cases}\implies x = 2\pi r\implies \boxed{\cfrac{x}{2\pi }=r} \\\\[-0.35em] ~\dotfill\\\\ \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ A=x \end{cases}\implies x = \pi \left( \boxed{\cfrac{x}{2\pi }} \right)^2\implies x = \pi \cdot \cfrac{x^2}{2^2\pi^2}$

$\bf x = \cfrac{x^2}{4\pi }\implies 4\pi x = x^2\implies \cfrac{4\pi x}{x}=x\implies \blacktriangleright 4\pi = x\blacktriangleleft \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{since the radius is}}{r = \cfrac{x}{2\pi }}\implies r =\cfrac{4\pi }{2\pi }\implies \blacktriangleright r = 2\blacktriangleleft$

6 0

4 years ago

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Of 60 patients with a certain medication 24 showed No improvement what percent of patients improved?

EastWind [94]

Answer:

Step-by-step explanation:

Answer: 40%

Divide 24 / 60 =0.4

3 0

4 years ago

CAN SOMEONE PLEASE HELP ME THIS IS DUE SOON!!

finlep [7]

Answer:

95 ft²

Step-by-step explanation:

Given:

regular pyramid with,

Square base of side length (s) = 5 ft

Slant height (l) = 7 ft

Required:

Surface area

Solution:

Surface area of a regular pyramid = ½*P*l + B

Where,

P = perimeter of the square base = 4(s) = 4(5) = 20 ft

l = slant height = 7 ft

B = area of base = s² = 5² = 25 ft²

Surface area = ½*20*7 + 25

= 10*7 + 25

= 70 + 25

Surface area of regular pyramid = 95 ft²

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3 years ago

5/8 of the 64 musicians are guitarists. Some of the guitarists play jazz solos, and the rest play classical solos. The ratio of

Veseljchak [2.6K]

64
5/8= 40. 3/8= 24
1:4 of 40
1= 8. 1*8=8

Answer= 8

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4 years ago

Yea i need help yolooo

SOVA2 [1]

Answer:

you kinda cute ngl...

Step-by-step explanation:

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3 years ago

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