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lora16 [44]
2 years ago
6

What system the system that is made up of the heart,blood, and blood vessels is called the ____ this is for sceince but i cant f

ind sceince
Mathematics
1 answer:
Fiesta28 [93]2 years ago
8 0

Answer:

Cardiovascular system

Step-by-step explanation:

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For each of the following​ scenarios, say whether the data should be treated as independent or paired samples. Explain briefly.
Tanya [424]

Answer:

1) C

2) C

3) A

Step-by-step explanation:

1) The right answer is C.

Each volunteer is a pair, consisting of the test of each chair. The difference can be compared for each individual and treated as a paired t-test.

2) The right answer is C.

There is no paired relation between the houses of each sample. There are two independent samples with the same sample size.

3) The right answer is A.

The hours are selected at random, so there is no relation between the hours picked for each worker. There are two indpendent samples with the same sample size.

4 0
3 years ago
Question: The slope of the graph of the equation Y=2x-2 is 2. What is the y-intercept <br>​
11Alexandr11 [23.1K]

Answer:

final answer is simply -2

Step-by-step explanation:

The graph crosses the y axis at -2 on the vertical number line. The y intercept as an ordered pair is (0,-2). The x coordinate is always 0 for the y intercept.

4 0
3 years ago
Which shows two expressions that are equivalent to (Negative 7) (Negative 15) (Negative 5) Yan is climbing down a ladder. Each t
Svet_ta [14]

Answer:

(-8) + (-8) + (-8) + (-8)

Step-by-step explanation:

Since Yan is descending ; we represent his movement as being negative.

Number of rungs descended before stopping = 4

Number of stops = 8

Given that no extra steps was taken ;

Number of ladder rungs descended :

4 rungs per stop for 8 stops

- 4 * 8 = - 32 rungs

Another way to write the product :

Number of stops added in number of rungs descended :

(-8) + (-8) + (-8) + (-8)

3 0
2 years ago
Henry has 3 black shirts and 7 blue shirts in his wardrobe. Two shirts are drawn without replacement from the wardrobe. What is
asambeis [7]
Since there are three black shirts and 7 blue shirts, he has a 3/10 chance of picking a black.

6 0
2 years ago
Read 2 more answers
Find the value of :[5x+y+z][5x+y+z][5x+y+z]
KIM [24]

Answer:

Step-by-step explanation:

(a + b + c)³ = a³ + b³ + c³ + 3a²b + 3a²c + 3ab² + 3cb² +3 ac² + 3bc² + 6abc

a = 5a  ;  b =y   ; c = z

(5x + y + z)(5z + y + z )(5z + y +z) = (5x + y +z)³

= (5x)³ + y³ +z³ + 3(5x)²y + 3(5x)²z + 3(5x)*y² + 3*z*y² + 3*5x*z² + 3*y*z² + 6*5x*y*z

= 125x³ + y³ +z³ + 3*25x²y + 3*25x²*z + 15xy² + 3zy² + 15xz² + 3yz² + 35xyz

= 125x³ + y³ + z³ + 75x²y + 75x²z + 15xy² + 3zy² + 15xz² + 3yz² + 35xyz

6 0
2 years ago
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