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Nat2105 [25]
3 years ago
14

HELP PLEASE I NEED IT ASAP

Mathematics
1 answer:
yanalaym [24]3 years ago
8 0

all of it or specifically one


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Which best describes a triangle with side lengths of 6in 8in and 9in ​
elena-14-01-66 [18.8K]

Answer:

the leftside

Step-by-step explanation:

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Polk elementary school has three classes for each grade level kindergarten through fifth grade if there is an average of 27 stud
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So there are 6 different grade levels with 3 classes in each. So 6*3 = 18 classes total. 

<span>If there are approximately 27 children in each class, than 27*18 = ? your answer.</span>
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Select Independent or Not independent for each situation. Not independent Independent a. A jar contains fifteen coins. Two coins
satela [25.4K]

Answer:

The correct answers are a. Independent; b. Independent; c. Independent;  e.  Not Independent

Step-by-step explanation:

a. A jar contains fifteen coins which. Two coins are picked randomly without replacement. Thus the second pick is not dependent on the first pick as the coins in the all same and thus the experiment is independent.

b. A number cube is rolled twice. Outcome of the first roll is independent of the outcome in the second and thus the experiment is independent.

c. A box contains number cards labeled from 1 to 10 where 2 cards are chosen randomly with replacement. Hence first draw does not effect the sample making the experiment independent.

e. There are 3 green balls and 7 red balls in a bag with 2 balls are chosen randomly without replacement. Thus one pick depends on what is drawn in the previous pick thus making it a dependent or not independent event.

4 0
3 years ago
Solve the following by elimination method <br> 11x+15y+23=0 and 7x-2y-20=0
mr Goodwill [35]
Let 11x + 15y + 23 = 0 be equation (1)
And 7x - 2y - 20 = 0 be equation (2)

Multiply equation (1) by 2:
22x + 30y + 46 = 0

Multiply equation (2) by 15:
105x - 30y - 300 = 0

Add equations (1) and (2):
22x + 105x + 30y - 30y + 46 - 300 = 0
127x - 254 = 0
127x = 254
x = 254/127
[x = 2]

Substitute x = 2 in equation (1) to find y:
11(2) + 15y + 23 = 0
22 + 15y + 23 = 0
15y + 45 = 0
15y = -45
y = -45/15
y = -3

Therefore, x = 2 and y = -3.
7 0
3 years ago
a family buys a car for $20,000. the value of the car decreases about 20% each year. after 6 years, the family decides to sell t
Neporo4naja [7]
No, the car is losing value not gaining it.
7 0
3 years ago
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