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aev [14]
3 years ago
14

Solve the equation cb – 20 = –10 for b.

Mathematics
1 answer:
Ymorist [56]3 years ago
3 0
ANSWER: B = 10/C
You have to isolate the variable by dividing each side by factors that don’t contain the variable
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Use the Law of Cosines to determine the indicated side x. (Assume a = b = 20. Round your answer to one decimal place.)
zhuklara [117]

Answer:

37.6

Step-by-step explanation:

x² = a² + b² - 2ab cos 140°

x² = 20² + 20² - 2(20)(20)(-0.766)

x² = 400 + 400 - 800(-0,766)

x² = 800 - (-612.835)

x² = 800 + 612.835

x² = 1412.835

x =√1412.835 = 37.6

4 0
3 years ago
Exercise 18.14. Toy defects. Workers at a factory produce a toy with a defect about once every 4 hours on average. Each toy cost
ohaa [14]

Answer: $70

Step-by-step explanation:

Given that:

Toy with defect is produced once every 4 hours

Cost of labor and supplies incurred for producing a defective toy = $7

Number of defective toys that is expected to be produced in a 40 hour work week :

Number of hours / average hour for producing 1 defective toy

= 40/ 4

= 10 defective toys

Cost incurred for producing 10 defective toys :

($7 * 10) = $70

6 0
3 years ago
A minibus drives with a constant speed of 80 miles per hour. How far can it travel in 2 1/2 hours?
deff fn [24]

Answer:

200 Miles

Step-by-step explanation:

8 0
3 years ago
As an estimation we are told 5 miles is 8 km.<br>Convert 80 km to miles.​
mrs_skeptik [129]
49.70. If you’re supposed to round up, I would say 50. Hope it’s right :)
7 0
3 years ago
Helppppppppppppppp 98 points
gtnhenbr [62]

Answer:

18 square units

Step-by-step explanation:

The top line has 5 shaded squares

The next line has 5 shaded squares

The third line from the top has 2 squares

The fourth line from the top has 2 squares

The fifth line from the top has 2 squares

The sixth line from the top has 2 squares

Add them together

5+5+2+2+2+2 = 18

18 square units

3 0
3 years ago
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