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bixtya [17]
4 years ago
5

I need help please...

Mathematics
1 answer:
Jobisdone [24]4 years ago
7 0

Answer:1

Step-by-step explanation:

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Average Temperatures Suppose the temperature (degrees F) in a river at a point x meters downstream from a factory that is discha
mr Goodwill [35]

Answer:

Step-by-step explanation:

Average Temperatures Suppose the temperature (degrees F) in a river at a point x meters downstream from a factory that is discharging hot water into the river is given by

T(x) = 160-0.05x^2

a. [0, 10]

For x = 0

T(0) = 160 - 0.05 × 0^2

T(0) = 160

For x = 10

T(10) = 160 - 0.05 × 10^2

T(10) = 160 - 5 = 155

The average temperature

= (160 + 155)/2 = 157.5

b. [10, 40]

For x = 10

T(10) = 160 - 0.05 × 10^2

T(10) = 160 - 5 = 155

For x = 40

T(10) = 160 - 0.05 × 40^2

T(10) = 160 - 80 = 80

The average temperature

= (80 + 155)/2 = 117.5

c. [0, 40]

For x = 0

T(0) = 160 - 0.05 × 0^2

T(0) = 160

For x = 40

T(10) = 160 - 0.05 × 40^2

T(10) = 160 - 80 = 80

The average temperature

= (160 + 80)/2 = 120

6 0
3 years ago
Rosy waxes 2/3 of her car with 1/4 bottle of car wax. At this rate what fraction of the bottle of car wax will Rosy use to wax h
Dmitry_Shevchenko [17]
⅜ of the bottle. Hope this helps!
4 0
3 years ago
Read 2 more answers
9. Todd makes $9.25 per hour plus a $50 bonus. Todd made $235 this week.
Daniel [21]

Answer:

20 hours

Step-by-step explanation:

use this linear equation

y = 9.25x + 50

plug in 235 for y and solve for x

235 = 9.25x + 50

185 = 9.25x

20 = x

so he worked for 20 hours

hope this helped <3

8 0
3 years ago
What does x/2 + 6 = 7
MaRussiya [10]

Answer:

2

Step-by-step explanation:

2/2+6=7

8 0
3 years ago
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Given: y varies directly with x and has a constant rate of change of 7. When the value of y is 12, then the value of x would be
docker41 [41]
Y = kx is the direct variation equation, where 'k' is the constant of variation.
12 = 7(x)
Divide both sides by 7
12/7 = x
7 0
3 years ago
Read 2 more answers
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