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Semenov [28]
3 years ago
15

Simplify 5a²x(-3b²)x2c

Mathematics
2 answers:
uranmaximum [27]3 years ago
3 0
<span>The goal in simplifying numbers is to reduce it that can be best seen in the eye. In here, you are given 5a²x(-3b²)x2c. Note that 5, -3 and 2 are coefficients and a², b² and c are variables.  Multiply first the coefficients 5, -3 and 2 and you get -30. Always remember that in multiplying numbers, especially variables, the base of the exponent must be equal. However, you have variables of a², b² and, c. You cannot multiply or add them because they are different. So the answer is -30a² b²c.</span>
alexgriva [62]3 years ago
3 0
5a^2 \times (-3b^2) \times 2c=\boxed{\bf{-30a^2b^2c}}
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Answer:

Area = 160 cm²

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Step-by-step explanation:

Applying,

Area of the figure = area of the rectangle- area of the triangle

A = lw+bh/2............... Equation 1

From the question,

Given: l = 16 cm, w = 12 cm, h = 8cm, b = 8 cm

Substitute these values into equation 1

A = (16×12)-(8×8/2)

A = 192-32

A = 160 cm²

Perimeter P = /BC/+/CD/+/DE/+/EF/+/FG/+/GA/

Applying pythagoras theorem to get /FG/

FG² = GE²+EF²

FG² = 8²+8²

FG² = 64+64

FG² = 128

FG = √128

FG = 11.31 cm

Therefore,

P = 16+12+4+8+11.31+4

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maw [93]

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