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IRINA_888 [86]
3 years ago
9

What is circumference? Please select all that apply:

Mathematics
1 answer:
Elina [12.6K]3 years ago
7 0

Answer:

A, C and D are correct.

\

Step-by-step explanation:

A is correct.

B is false; that space is the "area" of the circle.

C is true.  C = πd

D is true.  C = 2πr

E is false.  Way off.

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What are the solutions to the equation? p2−12p=13
lys-0071 [83]
P² - 12 p - 13 = 0 

Δ = ( -12)² - 4 ( 1 * - 13) 
Δ = 144 + 52
Δ = 196 = 14²

x₁ = (- ( -12) + 14 ) / 2 = 26/2 = 13 
x₂ = ( - ( -12) - 14) /2 = - 2 /2 = - 1 

S = 13
6 0
2 years ago
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Help please summer school sucks!!!
svetlana [45]

Answer:

X =30

Step-by-step explanation:

= 60+90

=150

angle sum property

x+150=180

x=180- 150

x= 30

4 0
2 years ago
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Please help me with this plz
NeX [460]

Answer:

A yes

B  yes

C  No

D  No

Step-by-step explanation:

If it is a function then the first number in the ordered pair is use only one time.

5 0
2 years ago
Please Help!<br> Factor the following trinomial<br> <img src="https://tex.z-dn.net/?f=9x%5E2-24x%2B16" id="TexFormula1" title="9
AlexFokin [52]

\huge\colorbox{pink}{Hey \: panda!}

The answer=>

For this,we need to know what's Middle splitting method

  • In order to factorize x² + bx + c we have to find numbers p and q such that p + q = b and pq = c. After finding p and q, we split the middle term in the quadratic as <em><u>px + qx and</u></em> get desired factors by grouping the terms.

Step-by-step explanation:

9x {}^{2}  - 24x + 16 \\  =  > 9x {}^{2}  - 12x - 12x + 16 \\  =  > 3x(3x - 4) - 4(3x - 4) \\  =  > (3x - 4)(3x - 4) \\ so... \\ x = eitherway \: 4

i.e

Alpha= Beta = 4

5 0
3 years ago
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The figure is made up of 2 hemispheres and a cylinder.
Setler [38]

Answer:

Hemisphere radius = 3 inch

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Sphere volume = 4/3 • π • 27

Sphere volume = 113.0973355292 cubic inches

Cylinder Volume = π • radius^2 • height

Cylinder Volume = π • 9 * 10

Cylinder Volume = 282.7433388231 cubic inches

TOTAL VOLUME = 113.10 + 282.74 cubic inches

TOTAL VOLUME = 395.84 cubic inches

Step-by-step explanation:

3 0
3 years ago
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