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vaieri [72.5K]
3 years ago
13

One crew can seal a parking lot in 5 hours and another in 10 hours. How long will it take to seal the parking lot if the two cre

ws work together?
Mathematics
1 answer:
Rama09 [41]3 years ago
6 0
5 hours and 50 minutes
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9th Grade Math - Geometry
worty [1.4K]

14x+70+20x+8=180

34x+78=180

34x=102

x=3

XBC= 20(3) +8

60+8

68

XBA= 14(3)+70

42+70

112

Angle XBC= 68 degrees

Angle XBA= 112 degrees

6 0
1 year ago
How do I find the range of a function?<br>​
maksim [4K]

Answer:

Overall, the steps for algebraically finding the range of a function are:

1.Write down y=f(x) and then solve the equation for x, giving something of the form x=g(y).

2.Find the domain of g(y), and this will be the range of f(x).

3.If you can't seem to solve for x, then try graphing the function to find the range.

Step-by-step explanation:

8 0
2 years ago
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Which statement regarding variable overhead variance analysis is true? The variable overhead efficiency variance is exactly the
Drupady [299]

Answer:

J

Step-by-step explanation:

6 0
3 years ago
The table represents the speed of Frog A at a frog-jumping contest. Frog B travels 2 feet each second. If the course is 20 feet
Black_prince [1.1K]

Answer:

Frog b

Step-by-step explanation:

8 0
3 years ago
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Sloan [31]

Triangle ABC is similar to triangle DEC, ∠B ≅ ∠E and 3DE = 2BC

<h3>What is transformation?</h3>

Transformation is the movement of a point from its initial location to a new location. Types of transformation are <em>rotation, reflection, translation and dilation.</em>

Dilation is the increase or decrease in the size of a figure by a scale factor.

Right triangle ABC is reflected over AC, then dilated by a scale factor of 2/3 to form triangle DEC, hence:

Triangle ABC is similar to triangle DEC, corresponding angles are congruent (∠B ≅ ∠E) and DE = (2/3)BC i.e. 3DE = 2BC

Find out more on transformation at: brainly.com/question/4289712

#SPJ1

7 0
1 year ago
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