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34kurt
3 years ago
12

Im confused..help.............

Mathematics
1 answer:
pentagon [3]3 years ago
5 0

Answer:

the first option, I believe is correct

Step-by-step explanation:

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Is (1, 2) a solution to the equation y = 8x?
Rom4ik [11]

Answer:

no it is not

Step-by-step explanation:

8 × 1 does not equal 2

4 0
3 years ago
Employees from A and company B receive annual bonuses. What information would you need to test the claim that the difference in
lyudmila [28]

Answer:

1. The required information are

The average annual bonuses, \bar {x}_1 received by employees from company A

The average annual bonuses, \bar {x}_2 received by employees from company B

The standard deviation, σ₁, of the average annual bonuses for employees from company A

The standard deviation, σ₂, of the average annual bonuses for employees from company A

The number of employees in company A, n₁

The number of employees in company B, n₂

2. The null hypothesis is H₀: \bar {x}_1 - \bar {x}_2 ≤ 100

The alternative hypothesis is Hₐ: \bar {x}_1 - \bar {x}_2 > 100

Step-by-step explanation:

1. The required information are

The average annual bonuses, \bar {x}_1 received by employees from company A

The average annual bonuses, \bar {x}_2 received by employees from company B

The standard deviation, σ₁, of the average annual bonuses for employees from company A

The standard deviation, σ₂, of the average annual bonuses for employees from company A

The number of employees in company A, n₁

The number of employees in company B, n₂

2. The null hypothesis is H₀: \bar {x}_1 - \bar {x}_2 ≤ 100

The alternative hypothesis is Hₐ: \bar {x}_1 - \bar {x}_2 > 100

The z value for the hypothesis testing of the difference between two means is given as follows;

z=\dfrac{(\bar{x}_{1}-\bar{x}_{2})}{\sqrt{\frac{\sigma_{1}^{2} }{n_{1}}-\frac{\sigma _{2}^{2}}{n_{2}}}}

At 0.5 level of significance, the critical z_\alpha = ± 0

The rejection region is z > z_\alpha and z < -z_\alpha

Therefore, the value of z obtained from the relation above more than or less than 0, we reject the null hypothesis, and we fail to reject the alternative hypothesis.

7 0
3 years ago
Can someone help me asap and guys i need all 4 answers please
ra1l [238]

Please include the question.

3 0
3 years ago
Read 2 more answers
refer to the diagram of a right triangle to solve this problem : find a and b correct ro the nearest hundreth. a=b,c=60. Explain
OlgaM077 [116]
Use Pythagorem theorem (Sorry I can't spell)
but use one variable (a) since a and b are same

60=a^2+a^2
60=2a^2
30=a^2
a=square root of 30
a= 5.48 (round to nearest 100)

since a and b are same, they are 5.48
note that a^2 means a to the power of 2

4 0
3 years ago
A clothing store has a sign in the window:SALE $3 off every purchase. Pani sees the sign and wants to buy 3 shirts and 2 pairs o
Scilla [17]
A) (shirts) 12 multiplied by 3 is 36. (jeans) 19 multiplied by 2 is 38. 38 plus 36 equals 74. 74 minus 3 is 71. her total is 71 dollars

B) (shirts) 9 multiplied by 3 is 27. 16 multiplied by 2 is 32. 27 plus 32 is 59.

C) well there is obviously a difference between 71 and 59. 71 minus 59 is 12 dollars.

D) if i was the owner i would say "3 dollars off TOTAL purchase".
3 0
3 years ago
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