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3 years ago

Five sixths of the 300 triathletes completed the course

Mathematics

1 answer:

andreyandreev [35.5K]3 years ago

4 0

5/6 of 300 is 250 people that completed the course.

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Complete the statements using the drop-down menus. The line perpendicular to the y-axis through the point (–4, –2) is . The slop

Vlad [161]

Answer:

Y=-2, 0

Step-by-step explanation:

EDG 2020

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3 years ago

How do you solve #3? The one that is incorrect.

Sunny_sXe [5.5K]

Infinite they’re all multiples, so they are the same line

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2 years ago

I need help with this

gtnhenbr [62]

So what are we trying to find the reduced fraction or inverse operation

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3 years ago

Which of these strategies would eliminate a variable in the system of equations? 8x+8y=2 8x+5y=1 Add the equations. (Choice B

harkovskaia [24]

Answer:

B. Subtract the bottom equation from the top equation.

Step-by-step explanation:

When looking at the two equations:

8x + 8y = 2

8x + 5y = 1

We can easily get rid of the x variable by subtracting the two equations from each other since the terms are equivalent. This would allow us to solve for the y value, which we could plug into the an equation to solve for the x value.

7 0

3 years ago

Read 2 more answers

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

8 0

2 years ago