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Readme [11.4K]
3 years ago
11

Regroup hundreds as Tens: 8 hundreds 9 tens =

Mathematics
1 answer:
Lilit [14]3 years ago
7 0
89 tens because 8 x10 is 80 add the 9
89
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Pls help I need this asap​
Valentin [98]

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75%

Step-by-step explanation:

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3 years ago
Please help! Thank you! xx
Marianna [84]
Hi!! if you dont want to use points google graph calculator. There is a good website called Graphing calculator-symbolab Its really helpful. Good Luck!!
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2 years ago
Question 9 of 10
allochka39001 [22]

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I think it's 126cm not sure

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2 years ago
One of the sides of a parallelogram is 4.2 cm and the altitude to that side is 3.6 cm. Find the perimeter of the parallelogram i
adelina 88 [10]
The product of side length and altitude is area. The area remains the same regardless of how you measure it.

From the first side and altitude,
.. area = side*altitude = (4.2 cm)*(3.6 cm) = 15.12 cm^2
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.. area = side*altitude
.. 15.12 cm^2 = side*(2.4 cm)
.. side = (15.12 cm^2)/(2.4 cm) = 6.3 cm

The perimeter is the sum of the measures of all sides. Opposite sides are of equal measure.
.. perimeter = 2*(4.2 cm +6.3 cm) = 21.0 cm
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3 years ago
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