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Jobisdone [24]
3 years ago
14

Factor completely. 21a^2 - 57a + 30

Mathematics
2 answers:
Kryger [21]3 years ago
8 0
The answer is 3(a-2)(7a-5)
hoa [83]3 years ago
5 0
<span><span> 21a2-57a+30</span> </span>Final result : 3 • (a - 2) • (7a - 5) <span>
hope i helped

</span>

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For every bag of trail mix the local Scout Guide troop sells,they earn $0.45. write an expression to represent this situation.
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T = trail mix Q= quantity (T*Q)*0.45=X X = total money earned
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3 years ago
What were the main important ideas in geometry that you studied in the first six weeks?
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Answer:

The preceding chapter explored implications of research on learning for general issues relevant to the design of effective learning environments. We now move to a more detailed exploration of teaching and learning in three disciplines: history, mathematics, and science. We chose these three areas in order to focus on the similarities and differences of disciplines that use different methods of inquiry and analysis. A major goal of our discussion is to explore the knowledge required to teach effectively in a diversity of disciplines.

Step-by-step explanation:

The preceding chapter explored implications of research on learning for general issues relevant to the design of effective learning environments. We now move to a more detailed exploration of teaching and learning in three disciplines: history, mathematics, and science. We chose these three areas in order to focus on the similarities and differences of disciplines that use different methods of inquiry and analysis. A major goal of our discussion is to explore the knowledge required to teach effectively in a diversity of disciplines.

7 0
3 years ago
The no solution for 6-3+4x+1
Nataly_w [17]
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3 0
3 years ago
Read 2 more answers
Someone please pass the answers to this
arsen [322]

Answer/Step-by-step explanation:

1. The figure is composed of a triangle and a rectangle.

Area of the triangle = ½*base*height

base = 4 ft

height = 12 - 8 = 4ft

Area of triangle = ½*4*4 = 8 ft²

Area of rectangle = length * width

Length = 8 ft

Width = 4 ft

Area of rectangle = 8*4 = 32 ft²

✔️Area of the figure = 8 + 32 = 40 ft²

2. The figure is composed of a semicircle and a triangle

Area of the semicircle = ½(πr²)

radius (r) = 3 cm

π = 3

Area = ½(3*3²) = 13.5 cm²

Area of triangle = ½*base*height

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height = 6 cm

Area = ½*6*6 = 6 cm²

✔️Area of the figure = 13.5 + 6 = 19.5 cm²

5 0
3 years ago
If carl was born in 1931 how old is he now
vfiekz [6]
86 years old because you subtract 2017-1931
7 0
3 years ago
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