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3 years ago

Find the percent of increase from 12 pencils to 18 pencils.

Mathematics

1 answer:

nalin [4]3 years ago

7 0

18-12/12 *100

6/12*100

1/2*100

50%

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What is -2 as a fraction?

Tasya [4]

Answer:

-2/1

Step-by-step explanation:

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3 years ago

What are the mean, median, mode, and range of the set of data?

Alexus [3.1K]

Answer:

Step-by-step explanation:

Mean:27

median:25

Mode:25

Range:11

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3 years ago

+ 2h + 5 when g = 3 and h = 6.

Rudik [331]

Is this the whole problem because I don’t see a “g”
Anywhere I’m the problem

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3 years ago

The average speed of greyhound dogs is about 18.4 meters per second. A particular greyhound breeder claims that her dogs are fas

irinina [24]

Answer:

The calculated value Z = 1.183 < 1.96 at 0.05 level of significance

Null hypothesis is accepted

A particular greyhound breeder claims that her dogs are faster than the average greyhound

Step-by-step explanation:

Step(i):-

Given the average speed of greyhound dogs is about 18.4 meters per second.

Size of the sample 'n' = 35

mean of the sample x⁻ = 18.7

Population standard deviation = 1.5m/s

level of significance (∝) = 0.05

Step(ii):-

Null hypothesis : H₀ : μ = 18.4

Alternative hypothesis H₁ : μ ≠ 18.4

Test statistic

$Z = \frac{x^{-} - mean}{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{18.7-18.4}{\frac{1.5}{\sqrt{35} } }$

Z = 1.183

Conclusion:-

The calculated value Z = 1.183 < 1.96 at 0.05 level of significance

Null hypothesis is accepted

A particular greyhound breeder claims that her dogs are faster than the average greyhound

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3 years ago

Very quick definition: What do you call the relation between two points that have one or more points in between them? For exampl

kirza4 [7]

Answer:

Step-by-step explanation:

Well believe it or not, that is not a simple question. Just look at what you left us to define. Your talking (for example) about a square and wondering what the vertex of B is called (other than a vertex.)

I think vertex is the only thing you can call B. But then there's a problem. What do you call the points on a segment? ___________? There are endpoints, but what's between those endpoints? I think you would just give them letter names and call them points. A point is dimensionless and there an infinite number of them in a segment.

Phew!!!

6 0

3 years ago