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balu736 [363]
2 years ago
11

ON YOUR OWN

Mathematics
2 answers:
atroni [7]2 years ago
8 0

Answer:

-20 units??

Step-by-step explanation:

AysviL [449]2 years ago
5 0
20 units.
I had a similar question like that
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What expression that can be used to check the quotient of 646÷3
kirza4 [7]

the quotient =215.3 repeating. so, you would do the 646 ÷ 215.3

5 0
3 years ago
A semicircular archway is built in front of a garden using 8 congruent granite tiles, as shown in the diagram. Find the area of
iris [78.8K]
Given: 
8 tiles
radius from the center of the archway to the inner edge of the tile. 7 ft.
radius from the center of the archway to the outer edge of the tile. 8 ft = 7 ft + 1 ft.

Area of a semi circle = π r² / 2 
A = (3.14 * (7ft)²) / 2 = (3.14 * 49ft²) / 2 = 153.86 ft² / 2 = 76.93 ft²
A = (3.14 * (8ft)²) / 2 = (3.14 * 64ft²) / 2 = 200.96 ft² / 2 = 100.48 ft²

100.48 ft² - 76.93 ft² = 23.55 ft²
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3 0
2 years ago
Im not understanding this question
natita [175]

It's said "The value √-9 is not -3 because --------------------

So you need to prove why -3 is not the value of √-9.


As you know (-3)^2 = (-3) * (-3) = 9, ≠ -9


Answer is A. 

(-3)^2 ≠ -9

7 0
3 years ago
Read 2 more answers
Solving systems of equations<br><br> X-2y=0<br> Y=2x-3
bearhunter [10]
\left \{ {{x-2y=0} \atop {y=2x-3}} \right. \\\\Substitute\ second\ equation\ to\ first:\\\\x-2(2x-3)=0\\x-4x+6=0\\-3x=-6\ \ \ \ \ |:-3\\x=2\\\\y=2\cdot2-3\\y=4-3=1\\\\ \left \{ {{y=1} \atop {x=2}} \right.
5 0
3 years ago
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in a park of 30 people, 15 were walking, 7 were playing and 6 were just running. find the percentage of people who were not doin
monitta

Answer:

6.67

Step-by-step explanation:

Because in the park there are 30 people OK

15 were walking

7 were playing

6 were running.

15 + 7 + 6=28

Meaning there are still 2 people left so that is 6.67 =% of the people.

Hope it helps have a great afternoon:)

7 0
2 years ago
Read 2 more answers
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