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2 years ago

Evaluate the expression when x =19 and y =7

Mathematics

1 answer:

PtichkaEL [24]2 years ago

3 0

Answer:

Plug in X and Y by replacing the given numbers where you see letters.

Step-by-step explanation:

What I said above.

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Help!!!!

Elodia [21]

Answer:

110 students in the class

Step-by-step explanation: If this is helpful and correct please mark as brainliest!

7 0

2 years ago

The sum of two polynomials is 8d5 – 3c3d2 + 5c2d3 – 4cd4 + 9. If one addend is 2d5 – c3d2 + 8cd4 + 1, what is the other addend?

MatroZZZ [7]

Answer:

a. $x = 6d^5 - 2c^3d^2 + 5c^2d^3 - 12cd^4 + 8$

Step-by-step explanation:

Given that

$8d^5 + 3c^3d62 + 5c^2d^3 - 4cd^4 + 9$

Now

if one is added i.e.

$2d^5 - c^3d^2 + 8cd^4 + 1$

Now let us assume the other polynomial be x

So,

$8d^5 + 3c^3d62 + 5c^2d^3 - 4cd^4 + 9 = x + (2d^5 - c^3d^2 + 8cd^4 + 1)\\\\x = 8d^5 + 3c^3d62 + 5c^2d^3 - 4cd^4 + 9 - (2d^5 - c^3d^2 + 8cd^4 + 1)\\\\$

$x = (8d^5 - 2d^5) + (-3c^3d^2 + c^3d^2) + 5c^2d^3+ (-4cd^4-8cd^4) + (9-1)\\\\x = 6d^5 - 2c^3d^2 + 5c^2d^3 - 12cd^4 + 8$

8 0

2 years ago

Read 2 more answers

Calculate the average (arithmetic mean) for the data set (rounded to the nearest tenth

Ugo [173]

The right answer is 19.9

Step-by-step explanation:

Given data set is;

(18, 23, 17, 25, 15, 18, 18, 16, 27, 25, 18, 19)

Sum of terms = 18+23+17+25+15+18+18+16+27+25+18+19 = 239

Number of terms in data set = 12

Average = $\frac{Sum\ of\ terms}{Number\ of\ terms}$

Average = $\frac{239}{12}$

Average = 19.91

The average of data set is 19.91

The right answer is 19.9

Keywords: average, addition

Learn more about addition at:

#LearnwithBrainly

5 0

2 years ago

Pls help

katrin [286]

I’m pretty sure it’s added, subtracted, added !

3 0

2 years ago

SOMEONE PLEASE HELP ME WITH THE REPRESENTATIVE ION QUESTION I JUST ASKED PLEASE I'LL GIVE BRAINLIEST TO WHOEVER IS RIGHT

lilavasa [31]

Answer:

Step-by-step explanation:

what question?

6 0

2 years ago