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Tamiku [17]
3 years ago
10

Rachel's science class places weights on a scale during an experiment. Each weight weighs 8.1 kilograms. If the class puts 9 wei

ghts on the scale at the same time, what will the scale read?
Mathematics
1 answer:
sweet [91]3 years ago
3 0
The answer would be 72.9 kilograms :)
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Can someone help me plz ​
Alexxx [7]

Answer:

8 -4 -7 1

Step-by-step explanation:

bc it you put them the same way you can tell witch one is bigger

8 0
4 years ago
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What is the area of a shape with points a 5 -8 b 11, -8 c 11,0 d 6,-3 e 4,-3
Dmitriy789 [7]

Answer:

Area of the given figure is 51.5 square units.

Step-by-step explanation:

Area of rectangle OCBH = Length × width

                                         = 11 × 8

                                         = 88 square units

Area of trapezoid OGEF = \frac{1}{2}(b_1+b_2)\times h

                                         = \frac{1}{2}(\text{GE+OF)}\times (\text{OG})

                                         = \frac{1}{2}(3+6)\times 4

                                         = 18 units²

Area of trapezoid GCDE = \frac{1}{2}(\text{GC+DE)}\times (\text{GE})

                                         = \frac{1}{2}(7+2)\times 3

                                         = 13.5 units²

Area of triangle AFH = \frac{1}{2}(\text{Base})\times (\text{Height})

                                  = \frac{1}{2}(5)(2)

                                  = 5 units²

Area of polygon ABCDEF = Area of rectangle CBHO - (Area of trapezoid OGEF + Area of trapezoid GCDE + Area of triangle AFH)

                                           = 88 - (18 + 13.5 + 5)

                                           = 88 - 36.5

                                           = 51.5 units²

Therefore, area of the given polygon is 51.5 units²

3 0
4 years ago
A painting measures 15 cm long by 24 cm high. You buy two posters, each showing an enlargement of the painting. The first poster
Airida [17]

Answer:

The Answer Is C The fist poster is the proper representation, because find the areas compare the paintings to the first poster it is 360 to 3240 which shows the poster is 9x bigger but compared to the second one it is out of proportion for the painting and first poster

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3 years ago
Homeroom 101 and homeroom 102 share a hallway bulletin board. If homeroom 101 uses 3/5 of their half to display artwork, what fr
Helga [31]
2/5 of the board ghhg
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Simplify 13 2<br> the 2 is tiny so I think it's 13 to the power of 2
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Answer: 169

Step-by-step explanation:

You just multiply 13 by 13

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