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3 years ago

How do geometric shapes relate to exponents?

1 answer:

3 0

So if we have (x) to the power of 2. We may say (x) squared. This is because a square has two dimensions (length and width). Now if we have (x) to the power of 3. We may say (x) cubed. This is because a cube has 3 dimensions (length, width and height). Hope that answers your question!

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1A technical magazine stated that the mean retail cost of all models of a particular laptop was $600. A random sample of 10 stor

My name is Ann [436]

Answer:

Yes

Step-by-step explanation:

Given,

Population mean Z = 600

Sample mean, µ = 586.50

Size of the sample, n = 10

Standard deviation, σ = 26.77

The testing hypothesis is,

Null hypothesis = µ<600

Alternative hypothesis = µ≥600

The test statistics is the calculated value of Z,

(Z- µ)/(σ/√n)

= (600-586.50)/(26.77/√10)

= (13.5*3.1623)/26.77

= 42.691/26.77

= 1.5947

And at 5% level of significance, the table value of Z = 1.644

Here, calculated Z<Table value of Z, so we accept the null hypothesis.

So, the null hypothesis is accepted. The mean value of the laptop is less than 600.

3 0

3 years ago

A total of 638 tickets were sold for the school play. They were either adult tickets or student tickets. There were 62 fewer stu

UNO [17]

You need to subtract 638 and 62 and that will give 576

5 0

3 years ago

Each of students reported the number of movies they saw in the past year. Here is what they reported. 6, 13, 13, 19, 16, 4, 5 Fi

Artemon [7]

Answer:10.9

Step-by-step explanation:You add all of the numbers together (76) and then divide by the total of numbers (7). You will get 10.85714286, you have to round to the nearest 10th , so the 5 changes the 8 to a 9.

3 0

2 years ago

Please help please I really need help

Umnica [9.8K]

Yo sup??

The two triangles are similar by AAA property ie

Angle Angle Angle property

Let us name the two triangles as ABC and DEF

By observing the figure

mB=mE=90 (right angled triangle)

mA=mD (parallel lines property)

mC=mF (parallel lines property)

Therefore by AAA the two triangles are similar .

The diagram is given below.

PS: All the credits for image goes to Picasso-PSN03

5 0

2 years ago

Can someone plz solve this for me?

ElenaW [278]

Answer:yellow box

Step-by-step explanation:

7 0

2 years ago