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Alik [6]
4 years ago
10

Can someone please help me??

Mathematics
2 answers:
dimulka [17.4K]4 years ago
6 0

Answer:

3x³ + 10x² + 17x + 12

Step-by-step explanation:

Step 1: Write expression

(3x + 4)(x² + 2x + 3)

Step 2: Distribute 3x

3x³ + 6x² + 9x

Step 3: Distribute 4

4x² + 8x + 12

Step 4: Combine

3x³ + 6x² + 9x + 4x² + 8x + 12

Step 5: Combine like terms

3x³ + 10x² + 17x + 12

Mars2501 [29]4 years ago
5 0

Answer:

3x^{3} +10x^{2} +17x+12

Step-by-step explanation:

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Let V be the volume of the solid obtained by rotating about the y-axis the region bounded y = 4x and y = x2/4 . Find V by slicin
aliya0001 [1]

Answer:

Step-by-step explanation:

Consider the graphs of the y = 4x  and  y = \frac{x^{2} }{4}.

By equating the expressions, the intersection points of the graphs can be found and in this way delimit the area that will rotate around the Y axis.

4x = \frac{x^{2} }{4} \\   x^{2}  = 16x \\ x^{2}  - 16x = 0 \\   x(x-16) = 0 then x=0  o  x=16. Therefore the integration limits are:

y = 4(0) = 0  and  y = 4(16) = 64

The inverse functions are given by:

x = 2 \sqrt{y}  and  x = \frac{y}{4}. Then

The volume of the solid of revolution is given by:

\int\limits^{64}_ {0} \, [2\sqrt{y} - \frac{y}{4}]^{2}  dy = \int\limits^{64}_ {0} \, [4y - y^{3/2} + \frac{y^{2}}{16} ]\  dy = [2y^{2} - \frac{2}{5}y^{5/2} + \frac{y^{3}}{48} ]\limits^{64}_ {0} = 546.133 u^{2}

6 0
4 years ago
A(n) __________ is a combination of more than one inequality
Hoochie [10]

Answer:

A compound inequality is a sentence with two inequality statements joined either by the word “or” or by the word “and.” “And” indicates that both statements of the compound sentence are true at the same time. It is the overlap or intersection of the solution sets for the individual statements.

Step-by-step explanation:

4 0
3 years ago
Peter wants to test an assumption on the number of trees that tested positive for a particular infestation. He decides to focus
LUCKY_DIMON [66]

Answer:

H0 : P ≤ 0.12

H1 : P > 0.12

Step-by-step explanation:

12% = 12/ 100 = 0.12

Given the population proportion, P = 0.12

The claim is the alternative hypothesis, H1 ; which is to test if more than 12% of trees have been infested.

Hence, the alternative hypothesis will be ;

H1 : P > 0.12

The null hypothesis which is the initial truth is always the opposite of the alternative hypothesis, Therefore, we write our null as ;

The null hypothesis ; H0 : P ≤ 0.12

Therefore, we have :

H0 : P ≤ 0.12

H1 : P > 0.12

4 0
3 years ago
42x ​5 ​​ y ​4 ​​ =(−7x ​3 ​​ y)(B)
gulaghasi [49]
This is my very own step-step solution:

Step 1:
<span>Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : </span>

               <span> 42*x^5*y^4-((-7*x^3*y)*(b))=0 
</span>Step 2:<span>Equation at the end of step  1  :</span><span>
 
               ((42•(x5))•(y4))-((0-(7x3•y))•b) = 0
</span>
Step 3:Pulling out like terms :  

  <span> 42x5y4 + 7x3yb</span>  =  <span> 7x3y • (6x2y3 + b)</span> 

The correct is: 7x3y • (6x2y3 + b) = 0 <span> </span>

Quick Side Note:
<span>Binomial can not be factored as the difference of two perfect cubes
</span>
I hope this helps a little!

Hope you have a great day!
4 0
3 years ago
What is the value of x?
ikadub [295]

Answer:

x = 22

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the interior angles

6x+1 = 79+ 2x+10

Combine like terms

6x+1 = 2x+89

Subtract 2x from each side

4x+1 = 89

Subtract 1 from each side

4x = 88

Divide by 4

4x/4 = 88/4

x = 22

8 0
3 years ago
Read 2 more answers
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