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siniylev [52]
3 years ago
7

2+2 Help please i really need it

Mathematics
2 answers:
Dafna11 [192]3 years ago
3 0

Answer: 4

Step-by-step explanation:

babunello [35]3 years ago
3 0
4 I’m only answering this so I can ask a question
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I need help find the volume of the composite solid use 3.14 for pi
Evgen [1.6K]

Answer:

222.312\:\mathrm{in^3}

Step-by-step explanation:

The composite solid consists of a cylinder and a cone. Therefore, its total volume will be the sum of the volumes of the cylinder and cone:

Volume of the cone: \frac{1}{3}\cdot 2^2\cdot 3.14\cdot 8.1 =33.912

Volume of the cylinder: 2^2\cdot 3.14 \cdot 15=188.4

Thus, the total volume of the solid is:

33.912+188.4=\boxed{222.312\:\mathrm{in^3}}

5 0
3 years ago
Solve for all values of x by factoring.<br> x^2 + 4x – 30 = -3x
vichka [17]

Answer:

{x}^{2}  + 4x - 30 =  - 3x \\{x}^{2}  + 7x - 30 = 0 \\  {x}^{2}  - 3x + 10x - 30 = 0 \\ x(x - 3) + 10(x - 3) = 0 \\ (x - 3)(x + 10) = 0 \\  \boxed{x = 3} \\  \boxed{x =  - 10}

<h3><em><u>x=3 or x=-10</u></em> is the right answer.</h3>

7 0
3 years ago
Steven wants to buy a $530 bicycle. Steven has no money saved, but will be able to deposit $35 into a
xxTIMURxx [149]
17 weeks of deposits will pay for his bike and his sister 

5 0
3 years ago
Read 2 more answers
Barry made a model to show multiplication of a fraction by a fraction. What multiplication sentence does the model represent?
artcher [175]
Im guessing 12 over 15 
4 0
4 years ago
Read 2 more answers
Factor completely 6x^3-23x^2+20x
Westkost [7]

Answer:

x[2x - 5][3x - 4]

Step-by-step explanation:

6x^3 - 23x^2 + 20x \\ x[6x^2 - 23x + 20] \\ \\ [x][6x^2 - 8x] - [15x + 20] \\ \\ [x]2x[3x - 4] \: -5[3x - 4] \\ \\ x[2x - 5][3x - 4]

I am joyous to assist you anytime.

4 0
3 years ago
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