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STALIN [3.7K]
3 years ago
11

A, B, and C are polynomials, where:

Mathematics
1 answer:
yan [13]3 years ago
7 0

Answer:

Option A. 8x² - 25x + 7.

Step-by-step explanation:

The given polynomials are

A = 3x -4

B = x + 7

C = x² + 2

Now we have to find the simplest form of A² - (B + C)

A² = (3x - 4)² = 9x² + 16 -24 x

B + C = x + 7 + x² + 2 = x² + x + 9

Now A² - (B + C) = 9x² + 16 -24x -(x² + x + 9)

= 9x² -24x + 16 - x²- x - 9

= 8x² -25x + 7

Therefore Option A. 8x² - 25x + 7 is the answer.

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dlinn [17]
Measure it hope that helps if not that's on me
3 0
3 years ago
What is the density of an object that has a mass of 20 grams and has a length of 8cm and a width of 2cm and a height of 5cm????
Evgen [1.6K]

Answer:

Volume is the amount of space an object occupies. To determine the volume of any rectangular object, multiply the measurements of length, width, and height.

Volume = Length × Width × Height

Calculate the volume of this rectangular object.

Length = 3 cm

Width = 3 cm

Height = 12 cm

Volume = l × w × h

Volume = 3 cm × 3 cm × 12 cm

Volume = 108 cm3

Notice that the units for volume are cubic centimeters (cm3).

So 8 ÷ 25 = 0.32 and the units would be g/ cm3 . Other units of density could be g/L or g/ml or mg/ cm3 or kg/ m3 and the list could go on and on. Any unit of mass divided by any unit of volume.

Step-by-step explanation:

hope this helpa

7 0
3 years ago
In the game of Pick-A-Ball, there are 10 colored balls: 2 red, 4 white, and 4 blue. The balls have been placed into a small buck
MaRussiya [10]

Answer:

The probability of selecting the color of ball that you just selected(a red ball) is P(r) =  \frac{2}{10}

Step-by-step explanation:

From the question we are told that

  The total number of colored balls  is  n  =  10

   The number of red balls is r =  2 red

    The number of white ball is  w =  4

    The number of blue balls is  b  =  4

   The number of balls to be selected is  N  =  2 balls

    The cost of playing picking a ball is  c  =  $10

    The winnings is k =  \$ P(A)

Here P(A) is the probability of obtaining the exact sequence of result  and from the question it  is  P(A) =  0.10

Generally my price according to the question is  

     k =  \frac{0.10 }{10}

=>   k =  0.01

Let assume we selected a red ball

 Generally the probability of selecting a red ball is  mathematically represented as

       P(r) =  \frac{2}{10}

8 0
3 years ago
Which of the following expressions is equal to 2x2 + 18 ?
ehidna [41]
<h3>Answer: Choice C. (2x - 6i)(x + 3i)</h3>

Work Shown:

2x^2 + 18

2(x^2 + 9)

2(x - 3i)(x + 3i) .... see note below

(2x - 6i)(x + 3i)

Note: I used the rule that a^2 + b^2 = (a - bi)(a + bi). I recommend FOILing out the right hand side to confirm the equation is true. You'll use the idea that i^2 = -1.

4 0
3 years ago
Write a real world situation that could be represented by x+20&gt;50
Korolek [52]

Answer:

will have a trillionare by that time

Step-by-step explanation:

3 0
3 years ago
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