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ryzh [129]
3 years ago
12

An object travels 4/5 miles in one fourth hour. What is its speed in miles per hour?

Mathematics
1 answer:
Law Incorporation [45]3 years ago
3 0

3 \:  \frac{1}{5}
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A heater repairman charges $40 to visit a home, plus $70 per hour for the time he spends on the repair. This situation can be de
frez [133]

Answer:

b = 40

Step-by-step explanation:

A heater repairman charges $40 to visit a home, plus $70 per hour for the time he spends on the repair.

This situation can be described by an equation of the form y=mx+b , where

x = the time in hours

y = the cost in dollars.

What is the value of b in this equation?

A heater repairman charges $40 to visit a home, plus $70 per hour for the time he spends on the repair

Writing the above in an equation =

y = $70 × x + $40

y = 70x + 40

Therefore, the value of b in the expression = 40

3 0
2 years ago
A two-factor research study has 2 levels of factor A and 3 levels of factor B with a separate sample of n = 5 subjects in each t
amid [387]

Answer:

option (b) df = 1, 24

Step-by-step explanation:

Data provided in the question:

levels of factor A, a = 2

levels of factor B, b = 3

Subjects in each Sample, s = 5

n = 5 × 3 × 2 = 30

Now

df for Factor A = a - 1

= 2 - 1

= 1

df for Factor B = b - 1

= 3 - 1

= 2

df for Interaction AB = ( a - 1 ) × ( b - 1 )

= 1  × 2

= 2

df for Total = n - 1

= 30 - 1

= 29

df for error = 29 - 5

= 24

Hence,

df values for the F-ratio evaluating the main effect of factor A is 1, 24

The correct answer is option (b) df = 1, 24

6 0
3 years ago
How to Convert 93 L to milliliters
s344n2d4d5 [400]

Answer:

93,000 mL

Step-by-step explanation:

1 l = 1000 mL

93 L * (1000 mL)/(1 L) = 93,000 mL

6 0
3 years ago
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Which answer represents a proportional relationship?
allsm [11]
The second option with the chart
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2 years ago
If f(x)=6x^2-4 what is f(-1)
Nana76 [90]

Answer:

2

Step-by-step explanation:

3 0
2 years ago
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