3 years ago

Simplify the following expression (3x-5)(4-9x)+(2x+1)(6x^2+5)

Mathematics

1 answer:

timama [110]3 years ago

6 0

Expand out the brackets and simplify, largest indices first.
12x³-21x²+67x+30

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1+2+3+4+5+6+7+8+9+1+2+3+4+5+6+7+8+9+10 times 2

Maksim231197 [3]

Answer:

200

Step-by-step explanation:

Step 1: Add

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10

1 + 2 = 3

3 + 3 = 6

6 + 4 = 10

10 + 5 = 15

15 + 6 = 21

21 + 7 = 28

28 + 8 = 36

36 + 9 = 45

45 + 1 = 46

46 + 2 = 48

48 + 3 = 51

51 + 4 = 55

55 + 5 = 60

60 + 6 = 66

66 + 7 = 73

73 + 8 = 81

81 + 9 = 90

90 + 10 = 100

100

Step 2: Multiply

100 * 2

200

Answer: 200

6 0

3 years ago

5 metric tons = ____ kilograms

ANEK [815]

Answer:

5000

Step-by-step explanation:

6 0

3 years ago

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Which statements about the graphs of functions g(x) = 4x and f(x) = x are true? Select all that apply.

Makovka662 [10]

Answer:

Step-by-step explanation:

5 0

3 years ago

Jaime has 8/10 of a candy bar left over. He wants to split it into 1/3 pieces.

Valentin [98]

Answer:

2 pieces.

Step-by-step explanation:

To identify how many pieces he can split with 8/10 of a candy bar, divide 8/10 by 1/3.

Divide 8/10 by 1/3:

$\frac{8}{10} / \frac{1}{3}=$

Find the Ricipricol, then flip the sign:

$\frac{8}{10} (\frac{3}{1} )=$

Multiply:

$\frac{8}{10} (\frac{3}{1})=\frac{24}{10} =\frac{2.4}{1}$

2.4 represents how many pieces of chocolate he can make with 8/10 of a candy bar.

However, 2.4 pieces can't be made, therefore he can only make 2 full pieces.

6 0

3 years ago

Help I will give brainliest!!

Elena-2011 [213]

Answer:

I think it is A and D but i'm sorry if i'm wrong

Step-by-step explanation:

8 0

3 years ago

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