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m_a_m_a [10]
2 years ago
12

Can Someone Help With This Question Please

Mathematics
2 answers:
8090 [49]2 years ago
8 0

4x²+x³

Factor is out x³ expression

The answer is :

{x}^{2}  \times (4 + 3x)

Carry learning!

Dovator [93]2 years ago
7 0
<h3><u>Given </u><u>:</u><u>-</u></h3>

  • We have given expression, 4x² + x³

<h3><u>To </u><u>Find </u><u>:</u><u>-</u></h3>

  • We have to factorise this expressions as fully as possible

<h3><u>Let's </u><u>Begin </u><u>:</u><u>-</u></h3>

4x² + x³

  • Arrange it accordingly

x³ + 4x²

  • X is common in the expression

x²( x + 4 )

  • x² ( 4 + x)

Hence, After factorization we got two possible factors of the above expression that is x² and (4 + x )

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A Rancher wants to enclose 2 rectangular area near a river, one for sheep and one for cattle. There is 240 yd. of fencing availa
AlexFokin [52]
Assuming the rectangles made will be of the same size:
Perimeter = 2(l + b)
For two rectangles,
Perimeter = 2 x 2(l + b)
240 = 4(l + b)
l + b = 60
l = 60 - b
Area = l x b
Area = 60b - b²
dA/db = 60 - 2b
Putting dA/db = 0
b = 30
Length = 60 - 30 = 30
Greatest available area of one triangle = 30 x 30
= 900 sq yd
Greatest total area that can be enclosed in both triangels
= 900 x 2
= 1800 sq yd
4 0
3 years ago
An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such tha
BartSMP [9]

Answer:

The decision rule is  

Reject the null hypothesis  

Step-by-step explanation:

From the question we are told that

    The population mean is \mu =  5.6  \ pounds/inch^2

     The  sample size is  n =  160

      The sample mean is  \=  x =  5.7  \  pounds/ inch^2

     The variance is \sigma ^2 =  0.25

       The level of significance is  \alpha   =  0.01

The null hypothesis is  H_o  :  \mu  =  5.6

The alternative hypothesis is H_a :  \mu > 5.6

Generally the standard deviation is mathematically represented as

           \sigma =  \sqrt{\sigma ^2 }

=>         \sigma =  \sqrt{0.25  }  

=>         \sigma =  0.5  

Generally the test statistics is mathematically represented as

        z =  \frac{\= x  - \mu }{ \frac{\sigma}{\sqrt{n}  } }

=>     z =  \frac{5.7  - 5.6  }{ \frac{0.5 }{\sqrt{ 160 }  } }  

=>     z =  2.53

From the z table  the area under the normal curve to the left corresponding to  2.53   is

        p-value =  P(Z >  2.53 ) =0.0057

From the value obtained we see that the p-value  < \alpha hence

The decision rule is  

Reject the null hypothesis  

The conclusion is  

There is sufficient evidence to conclude that the believe  that the valve performs above the specifications is true

 

5 0
3 years ago
PLEASE HELP PRONTO IM DUMB
SOVA2 [1]
Hope this helps solve your question

4 0
3 years ago
I need help ASAP thank you
PIT_PIT [208]

Answer:

E

Step-by-step explanation:

every single graph is asimethrical because they have no trend.

4 0
3 years ago
Yvonne made the two-way table below showing students’ favorite fruits.
const2013 [10]

Answer:

How may students in class B prefer apples?

Answer: 15 students in class B prefer apples

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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