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Stella [2.4K]
3 years ago
5

Triangle JKL is transformed by performing a 90degree clockwise rotation about the origin and then a reflection over the y-axis,

creating triangle J’’K’’L’’. Which transformation will map J’’K’’L’’ back to JKL?
A.) a reflection over the y-axis and then a 90degree clockwise rotation about the origin
B.) a reflection over the x-axis and then a 90degree counterclockwise rotation about the origin
C.) a reflection over the x-axis and then a 90degree clockwise rotation about the origin
D.) a reflection over the x-axis and then a reflection over the y-axis
Mathematics
1 answer:
marshall27 [118]3 years ago
4 0

Answer:

B

Step-by-step explanation:

Just do the reverse of what they did and you will always make it back to where you started. It's like someone saying, "take 2 steps forward then turn around.." how do you get back? You turn <em>back</em> around and take 2 steps <em>backward.</em>

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Hope this helped!  :D

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A larger number is 2 more than 4 times a smaller number. The larger number is also 8 more than 2 times the smaller number. y = 4
ASHA 777 [7]

Answer:

3

Step-by-step explanation:

I got it wrong so then it told me what the correct answer was:)

4 0
3 years ago
Sunland Mining Company purchased land on February 1, 2020, at a cost of $975,900. It estimated that a total of 57,600 tons of mi
kakasveta [241]

Sunland Mining Company purchased land on February 1, 2020, at a cost of $975,900. It estimated that a total of 57,600 tons of mineral was available for mining. After it has removed all the natural resources, the company will be required to restore the property to its previous state because of strict environmental protection laws. It estimates the fair value of this restoration obligation at $110,700. It believes it will be able to sell the property afterwards for $123,000. It incurred developmental costs of $246,000 before it was able to do any mining. In 2020, resources removed totaled 28,800 tons. The company sold 21,120 tons.

Calculate :

a. Per unit mineral cost.

b. Total material cost of December 31, 2020, inventory

c.  Total materials cost in cost of goods sold at December 31, 2014.

Answer:

a. Per unit mineral cost  is $21

b. Total material Cost of ending inventory is $161280

c. Total materials cost in cost of goods sold is  $443520

Step-by-step explanation:

The Per unit mineral cost can be computed as follows:

Details                                           Amount ($)

Cost of land                                  975900

Add: Restoration obligation         110700

Add: Development cost            <u>  246000   </u>

                                                     1332600

Less: Resale value of property <u>    123000</u>

Total cost of land                         1209600  

Divide:Total estimated cost            57600  

of minerals    

Per unit mineral cost                               21

b. The ending inventory cost on December 31, 2020 can be calculated as follows:

Ending inventory = Total mined tons - sold tons

Ending inventory = 28800 - 21120

Ending inventory = 7680

Cost per ton= $21

Cost of ending inventory = 7680 × $21

Cost of ending inventory = $161280

c.To calculate the cost of goods sold in December 2020; we have:

Cost per ton = $21

Total units sold = 21120

Cost of goods sold = 21120 × $21

Cost of goods sold = $443520

5 0
3 years ago
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What is the area, in square centimeters, of the trapezoid below?<br> 8.5 cm<br> 7.5 cm<br> 15.7 cm
Contact [7]

Answer:

90.75 cm^2

Step-by-step explanation:

The area of a trapezoid is given by

A = 1/2 ( b1+b2) *h

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A = 1/2(8.5+ 15.7) * 7.5

1/2 (24.2) 7.5

90.75 cm^2

6 0
2 years ago
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