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suter [353]
4 years ago
8

A coin mint has a specification that a particular coin has a mean weight of

Mathematics
1 answer:
Serggg [28]4 years ago
6 0
<span>Null Hypothesis:µ equals 2.5Alternative Hypothesis: µ not equal to 2.5 Z Test Test Statistic, Ztest: -18.1912 Critical Zcritical: ±1.9607 P-Value: 0,0000 As Ztest is not within the limits of Zcritical we can reject the null hypothesis  95% Confidence interval: 2.495746 < µ < 2.496574</span>
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Mr. Stanley bought a car that was marked down 18%.
Lady bird [3.3K]

Answer:

P=100-0.18

Step-by-step explanation:

Remember, percent means per every 100. So if the car cost $100, Mr. Stanley saves $18 on the car. Also, 18%= 0.18. And just for extra, single digit percents would be expressed with an extra zero in front of it, such as 5%=0.05.

5 0
3 years ago
i really need to know the equation of the line that is shown on the graph in slope intercept form (y=mx+b). questions 4-9. it’s
melamori03 [73]

Step-by-step explanation:

4. y=-6/3x+3 (if you can simplify put y=-2x+3)

5. y=5/2x+1

6. y=-8/2x -5 (if you can simplify put y=-4x-5)

7. y=-6/6x+2 (if you can simplify put y=-x+2)

8. y=4/6x-4 (if you can simplify put y=2/3x-4)

9. y=6/5x+0

hope this helped!!!

3 0
3 years ago
Read 2 more answers
What is the solution?
galina1969 [7]

Answer:

y=60 x=16

Step-by-step explanation:

the triangles are identical so 92+y=3y-28 so solve that for y:

                                                     -y      +28

                                                  120=2y                                                                            .                                                  /2      /2

                                                  60 = y so y=60

and 6x+2=3x+50 and solve that for x: which gets x = 16

Then are you supposed to plug it in to the numerical equvilant to the angles and sides becuase if so:  B and E is 152, AC and DF are 98

Hope this helps and brainliest would be greatly appreciated! Thanks!

4 0
3 years ago
Joe completed 7 pages of homework over 3 hours. Nina completed 5 pages over two hours. Who was completing the work at a faster p
bonufazy [111]

Answer:

Joe

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Does a=7 make 7a= 56? <br> btw I hate math I am bad at it but I am good with other stuff
KATRIN_1 [288]

Answer:

No, 7a does not equal 56. If a = 7, then 7a would equal 7 * 7. And, 7 * 7 = 49.

3 0
3 years ago
Read 2 more answers
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