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Effectus [21]
3 years ago
9

Which of the following relations describes a function?

Mathematics
1 answer:
grin007 [14]3 years ago
6 0
It’s c because none of the c values repeat
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A truck can be rented from Company A for ​$70 a day plus ​$0.50 per mile. Company B charges ​$20 a day plus ​$0.60 per mile to r
r-ruslan [8.4K]

Answer:

The rental cost for Company A and Company B will be the same after 500 miles

Step-by-step explanation:

The total cost of renting a truck from Company A can be expressed as;

Total rental cost(Company A)=Cost per day+Total rate

where;

Cost per day=70

Total rate=rate per mile×number of miles (m)=(0.5×m)=0.5 m

replacing;

Total rental cost(Company A)=70+0.5 m...equation 1

2. The total cost of renting a truck from Company B can be expressed as;

Total rental cost(Company B)=Cost per day+Total rate

where;

Cost per day=20

Total rate=rate per mile×number of miles (m)=(0.6×m)=0.6 m

replacing;

Total rental cost(Company B)=20+0.6 m...equation 2

Equating equation 1 to equation 2

70+0.5 m=20+0.6 m

0.6 m-0.5 m=70-20

0.1 m=50

m=50/0.1

m=500 miles

The rental cost for Company A and Company B will be the same after 500 miles

7 0
3 years ago
Get all of them and get brainliest
Marina86 [1]
1. 21,150
2. 2.5193
3. 27.98
4. 11,100
8 0
3 years ago
Draw the line through the point (4,5) that is parallel to the y-axis. Write the equation of this line and state its slope
ollegr [7]
Parallel to the y axis...that would mean that it is a vertical line.
The equation would be : x = 4 and it would have an undefined slope
7 0
3 years ago
Below are some data examining whether reading the textbook for this course is related to class enjoyment.
qaws [65]

Answer:

13.36

Step-by-step explanation:

I will first create a table

X. Y. XY. X²

1. 20. 20. 1

2. 24. 48. 4

3. 35. 105. 9

4. 46. 184. 16

5. 67. 335. 25

6. 80. 480. 36

1. 12. 12. 1

2. 34. 68. 4

3. 34. 102. 9

5. 78. 430. 25

ΣX = 32

ΣY = 430

ΣXY = 1744

ΣX² = 130

n = 10

The formula for regression line is given as :

Y = a + bX

a = intercept

b = slope

The question requires us to find b which is the slope.

b = nΣXY-ΣXΣY/nΣX²-(ΣX)²

= 10x1744-32x430/10x130-(32)²

= 17440-13760/1300-1024

= 3680/276

= 13.36

b = 13.36

8 0
3 years ago
Carla's plant was 10 2/3 inches tall. Yolanda's was 8 3/4 inches tall. 
marin [14]
10 2/3 inches=32/3 inches
8 3/4 inches= 35/4 inches

Find the common denominator, in this case, 12.

128/12 inches is Carla's plant

105/12 inches is Yolanda's plant.

128/12 > 105/12. Therefore, Carla's plant is taller than Yonlanda's
3 0
3 years ago
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