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Ugo [173]
3 years ago
6

Ca I get help please! I will mark Brainliest if you answer all of these

Mathematics
1 answer:
zalisa [80]3 years ago
7 0

Answer:

E=x=$ 29

Step-by-step explanation:

x=y/2

x=$58/2

x=$29

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The director of a state agency believes that the average starting salary for clerical employees in the state is less than $30,00
ss7ja [257]

Answer:

The test statistics is   z = -1  

Step-by-step explanation:

From the question we are told that

   The sample size is  n  =  100

  The null hypothesis  is  H_o : \mu = \$30000

   The alternative hypothesis is  H_a  :  \mu  < \$ 30000

   The sample mean is  \= x  = \$29,750

    The standard deviation is  \sigma  = \$2,500

    The level of significance is  \alpha =0.05

Generally the test statistics is mathematically represented as

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

=>      z = \frac{29750 - 30000 }{ \frac{ 2500}{ \sqrt{100} } }

=>      z = -1    

7 0
3 years ago
I need help with number 18
algol13

Answer:

61.6666666667 =61.67

Step-by-step explanation:

4 0
3 years ago
Can someone help me find the annulus of the shaded area? much appreciated ​
Dimas [21]

Answer:

34.83

Step-by-step explanation:

7 0
2 years ago
the perimeter of a rectangle parking lot is 322 m. if the length of the parking lot is 86 m, what is the width
bekas [8.4K]
Perimeter of rec. = 2 ( l + w )

Given: perimeter of rectangle = 322m, length = 86m

Required: width = ?

Solution: 322 = 2 ( 86 + w )
Divide 322 by 2 ie, 322/2 = 86 + w
Will be equal to 161 = 86 + w
Therefore Width= 161 - 86 = 75

4 0
2 years ago
Using complete sentences, describe how you could slice a cube with a plane and get a cross section of an equilateral triangle. I
andrew11 [14]
An equilateral triangle cross section can be obtained by cutting the cube by a plane defined by the midpoints of the three edges emanating from any one vertex.
6 0
3 years ago
Read 2 more answers
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