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3 years ago

14

Prairie dogs ventilate their burrows by building a mound around one entrance, which is open to a stream of air when wind blows f

rom any direction. A second entrance at ground level is open to almost stagnant air. How does this construction create an airflow through the burrow

1 answer:

Finger [1]3 years ago

6 0

Answer:

Step-by-step explanation:

causeit have a hole

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10 times as many as 100

mr Goodwill [35]

<span>10 times as many as 100
this simply mean 10<span>100
</span>=> 10 will be multiplies a 100 times and the result will be 1e100
=> also explained as 1 and 100 zeros to get the answer</span>

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3 years ago

If Hanna had 25 dollars and spends 2 how much money does she have

Mama L [17]

23

okayh help you are helping okahy from finland

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4 years ago

Read 2 more answers

line passes through the point (0, –1) and has a positive slope. Which of these points could that line pass through? Check all th

sammy [17]

Answer:

Points passing though are (12, 3),(–2, –5) and (1, 15)

Step-by-step explanation:

For a line passing through (x₁,y₁) and (x₂,y₂) slope is given by $\frac{y_2-y_1}{x_2-x_1}$ .

Here we have one point (0, –1), we need to check slope of all the points given.

(12, 3)

$m=\frac{3-(-1))}{12-0}=\frac{1}{4}>0$

(–2, –5)

$m=\frac{-5-(-1))}{-2-0}=\frac{-4}{-2}=2>0$

(–3, 1)

$m=\frac{1-(-1))}{-3-0}=\frac{2}{-3}=-\frac{2}{3}$

(1, 15)

$m=\frac{15-(-1))}{1-0}=\frac{16}{1}=16>0$

(5, –2)

$m=\frac{-2-(-1))}{5-0}=\frac{-1}{5}=-\frac{1}{5}$

Points with positive slope are (12, 3),(–2, –5) and (1, 15)

8 0

4 years ago

Read 2 more answers

Please solve need help!

lions [1.4K]

Answer:

ST 45

Step-by-step explanation:

9x=4x+25

5x=25

x= 5

plug back in 9(5)

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3 years ago

Peter babysits his sister on Monday and Friday. He babysits for his neighbor 40% of the days Monday through Friday. He babysits

saul85 [17]

Answer:

Question 1: False

Question 2: True

Question 3: True

Question 4: False

Step-by-step explanation:

Peter babysits his sister 2 days: Monday and Friday.

He babysits for his neighbor 40% of the time between Monday through Friday. This includes 5 days. 40% of 5days = 2 days.

On the weekend, Peter babysits 50% of the days. There are 2 days in the weekend

50% × 2 days = 1 day.

Question 1: False

Altogether, Peter babysits 5 days every week.

Question 2: True

Question 3: True

Peter babysits 4 out 5 days during Monday-Friday 4/5= 80%

Question 4: False

Peter babysits 5 days out of 7 during the week. 5/7 = 71% of the days, which is less than 90%

5 0

4 years ago