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Dennis_Churaev [7]

3 years ago

6

Match the pairs of variables with the type of relationship they show.

2 answers:

LiRa [457]3 years ago

5 0

Correlation:
an increase in the birth rate and a decrease in the death rate

No relationship:
an increase in the urban bird population and in increase in airplane accidents

Causation:
a decrease in deaths related to heart disease and an increase in air travel

klasskru [66]3 years ago

3 0

Answer:

correlation : an increase in the birth rate

and a decrease in the death

rate

causation : an increase in the urban bird

population and an increase in

airplane accidents

no relationship : a decrease in deaths related to

heart disease and an increase

in air travel

Step-by-step explanation:

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What is the property for x times 1=x?

IRISSAK [1]

Answer:

any number

Step-by-step explanation:

it could be any number because 1 multiplied by another number is always going to be the starting number, idk tho

6 0

4 years ago

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After knee surgery, your trainer tells you to return to your jogging program slowly. He suggests you start by jogging for 14 min

aleksklad [387]

Given that initial time for jogging is,

$a_{_1}=14$

After each week the time is increased by

$d=7$

This gives an arithmetic sequence.

To find n such that,

$a_n=70$

Therefore,

$\begin{gathered} a_n=a_1+(n-1)d \\ n=\frac{a_n-a_1}{d}+1 \end{gathered}$

So,

$\begin{gathered} n=\frac{70-14}{7}+1 \\ =\frac{56}{7}+1 \\ =8+1 \\ =9 \end{gathered}$

Therefore, 9 weeks before you are up to jogging 70 minutes.

7 0

1 year ago

911+911+666+21−420−69 what this equal

melamori03 [73]

Answer:

2020

Step-by-step explanation:

6 0

3 years ago

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Savatey [412]

Answer:

(a) mintutes, seconds

(b) Randomly pick 55 students to run a lap around the track and measure their times

Step-by-step explanation:

(a) When measuring distance like running you measure it in minutes and seconds

(b) When finding the average of a population you have to pick randomly and to get the best results you time them youself

Randomly pick 55 students to run a lap around the track and measure their times.

6 0

2 years ago

Anyone know the answer?

Sergeeva-Olga [200]

Answer:

They will need √161 feet, or about 12.69 feet of fencing. √161 is irrational because 161 is not a perfect square.

Step-by-step explanation:

${8}^{2} + {x}^{2} = {15}^{2}$

$64 + {x}^{2} = 225$

${x}^{2} = 161$

$x = \sqrt{161} = 12.69$

4 0

2 years ago