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Bad White [126]
3 years ago
14

Find the volume of each cylinder. (use nr = 3.14)

Mathematics
1 answer:
lutik1710 [3]3 years ago
4 0

Answer:

54286.72cm

Step-by-step explanation:

you divide 48 by 2 because your radius is half of your diameter which equals 24 and from there you plug in the information into you formula

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a

Step-by-step explanation:

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3 years ago
Factorise<br>. (x+2) ²-6 (x+ 2) +9​
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Answer:

(x-1)(x-1)

Step-by-step explanation:

hello :

(x+2) ²-6 (x+ 2) +9​ =(x+2) ²-2×(<em>3</em>) (x+ 2) +<em>3²</em>

by identity :   (a-b)² = a²-2ab+b²

let : a=x+2   and   b= <em>3</em>

(x+2) ²-6 (x+ 2) +9​ =(x+2) ²-2×(<em>3</em>) (x+ 2) +<em>3²=</em> ((<em>x+2)-3</em>)<em>²= (</em>x+2-3)² = (x-1)²=

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4 0
4 years ago
you want to go on an “Around the world cruise” two travel agents are offering cruise packages for $20,000. the agents have unusu
Valentin [98]

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Step-by-step explanation:

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7 0
3 years ago
Solve the equation. x2 18x 81 = 25<br> a. 14, 4<br> b. –4, –14<br> c. 14, –14<br> d. –4, 4
Snowcat [4.5K]

Answer:

The answer is the option B

-4,-14

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}+18x+81=25  

x^{2}+18x+56=0  

so

a=1\\b=18\\c=56

substitute in the formula

x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}

x=\frac{-18(+/-)\sqrt{100}} {2}

x=\frac{-18(+/-)10} {2}

x1=\frac{-18+10} {2}=-4

x2=\frac{-18-10} {2}=-14

7 0
4 years ago
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Can anyone help me with my last math test question pls my grades are depending on this test so pls help and get me the right ans
zysi [14]

Answer:

A

Step-by-step explanation:

3 0
3 years ago
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