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Shalnov [3]
3 years ago
15

Math 9. please help, and show work :)

Mathematics
1 answer:
galina1969 [7]3 years ago
8 0
3.5 cm from the centre
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Dr. Goodrich wanted to demonstrate that his tires were better than those of his competitor, Dr. Goodyear. From car registration
dem82 [27]

Answer:

Dependent Variable : Tire tread wear ; Independent Variable : Tire Brand ; Confounding Variable : Person driving

Step-by-step explanation:

Dependent Variable is the variable being affected by independent variable(s). Independent Variable(s) are the causal variable, bring change in dependent variable.

Goodrich wants to demonstrate that his tires were better than those of his competitor (Goodyear). For that, he has got conducted an independent research on tires worn quality - brand wise & various factors affecting wear

  • Dependent Variable is the 'Tire tread wear '.
  • Independent Variables determining it is primarily brand : Goodrich / Goodyear ; secondarily - price, mileage, time etc

Confounding variable is an extraneous influence variable; that changes the relationship between independent & dependent variable, outcome of experimental research.

In this case : Individuals driving the vehicles could be a confounding variable. A  particular person could wear out tire more than another person.  

6 0
3 years ago
I have two question 1. What is 437.04 in expanded form 2.what is 3,543,21 in expanded form
Nikitich [7]
400+30+7. +0+4                              

3,000,000+500+40+3,000+2+1




3 0
3 years ago
Translate the phrase into an algebraic expression 7 more than c
Svetllana [295]

Answer:

Step-by-step explanation:

c+7

you have 7 more then a number c

7 0
3 years ago
Need help PlsSSSSSSSSSSSSSSSSSSSSSSS
Makovka662 [10]

Answer:

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3 0
3 years ago
Read 2 more answers
Shania drove on the interstate for 310 miles without stopping. If she traveled at a constant rate and the trip took her 5 hours,
sp2606 [1]

Answer:

62 miles per hour/62 mph

Step-by-step explanation:

Shania drives at a CONSTANT rate, which means in the 5 hours it took her to drive, each hour she drove the same amount.

So we need to do 310 miles in 5 hours, which is:

310/5

Solving this, we get:

62

The answer is 62 miles per hour.

Happy learning!

4 0
3 years ago
Read 2 more answers
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