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3 years ago

Add the polynomials (−5x2+8x)+(2x2−3x+7) -3x^2+5x+7 7x^2+8x+11 -7x^2+11x+7

Mathematics

1 answer:

____ [38]3 years ago

4 0

( - 5 x² + 8 x ) + ( 2 x² - 3 x + 7)
= - 5 x² + 8 x + 2 x² - 3 x + 7
= - 3 x² + 5 x + 7

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What is 8^3 simplyfied

prisoha [69]

Answer: $8*8*8$

Since 8 is being multiplied to the 3 power we multiply it 3 times.

$8^3$ is written like $8*8*8$

$8*8*8=512$

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3 years ago

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Cards. A deck of 52 cards is shuffled and dealt. Find the probabilities of the following events: a) the tenth card is a queen; b

Veronika [31]

Answer:

0.0374
0.0010

Step-by-step explanation:

number of cards = 52

number of queen = 4

number of spades = 13

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p = 4/52

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4 years ago

Stuck in this problem help please

marta [7]

Use trigonometry.

tan30° = perpendicular / base

Here for angle 30° , x is perpendicular while 10 is the base.

tan30° = 1/√3
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Hope This Helps You!

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4 years ago

1 2 3 4 5 6 7 8 9 10 11

alexandr402 [8]

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60 + 6 / 6

6 / 6 = 1

60 + 1 = 61

61 is the final answer.

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2 in the final answer.

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-10 is the final answer.

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Subtract 1 from each side.

15x = 25.

25/15 = 1.6...

x = 1.6...

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2x + 3x = 5x

5x - 4 = -1

Add 4 to each side

5x = 3

3/5 = 0.6

x = 0.6

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I don't remember the steps, but the answer is x = 11

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20/5 = 4

x = 1

The smaller rectangle has a reduction of 5 times.

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18 + 27 + 15 + 24 + 18 + 26 + 19 + 24 = 171

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Mean = 21.375

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Median = 21.5

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3 years ago

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Amanda [17]

.125
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2 years ago