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Colt1911 [192]
3 years ago
11

Add (1.3t3 + 0.4t2 – 24t) + (8 – 18t + 0.6t2) For each term in the second polynomial, enter the letter showing where that term s

hould be placed to add the polynomials vertically. 1.3t3 + 0.4t2 + (–24t) ____=0.6t^2 ____=0t^3 ____=8 ____=-18t
Mathematics
2 answers:
valentinak56 [21]3 years ago
7 0

The letter order is B, A, D, C

vesna_86 [32]3 years ago
4 0
<span>(1.3t3 + 0.4t2 – 24t) + (8 – 18t + 0.6t2) 

In adding polynomials, make sure that each term is grouped together. 

1.3t</span>³ + 0.4t² - 24t
<u>         + 0.6t² - 18t  + 8</u>
1.3t³ + 1.0t² - 42t + 8

In a polynomial equation, arrangement of each term is dependent on the exponential number. It should be from the highest exponent to the lowest. 
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Which number is an irrational number?
xxTIMURxx [149]

Answer:

3.5

Step-by-step explanation:

6 0
3 years ago
Solve the system. -3x-y=10; y-4z=-13; x-4y+z=4
kvasek [131]

9514 1404 393

Answer:

  (x, y, z) = (-3, -1, 3)

Step-by-step explanation:

Many graphing calculators can solve matrix equations handily. Here, we use a combination of methods.

Use the last equation to write an expression for z.

  z = 4 -x +4y

Substitute this into the second equation:

  y -4(4 -x +4y) = -13

  y -16 +4x -16y = -13

  4x -15y -3 = 0

In genera form, the first equation can be written as ...

  3x +y +10 = 0

Now, the solution to these two equations can be found to be ...

  x = (-15(10) -1(-3))/(4(1) -3(-15)) = (-150 +3)/(4+45) = -3 . . . using "Cramer's rule"

  y = -(10 +3x) = -(10 -9) = -1 . . . . from the first equation

  z = 4 -(-3) +4(-1) = 3 . . . . . . . . from our equation for z

The solution to the system is (x, y, z) = (-3, -1, 3).

_____

<em>Additional comment</em>

Written as an augmented matrix, the system of equations is ...

  \left[\begin{array}{ccc|c}-3&-1&0&10\\0&1&-4&-13\\1&-4&1&4\end{array}\right]

4 0
2 years ago
1/3(4 + 18)-2²<br>PLIS I need help :(​
liraira [26]

Answer:

10/3

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

1/3(4 + 18) - 2²

<u>Step 2: Evaluate</u>

  1. (Parenthesis) Add:                                                                                          1/3(22) - 2²
  2. Exponents:                                                                                                      1/3(22) - 4
  3. Multiply:                                                                                                           22/3 - 4
  4. Subtract:                                                                                                          10/3
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Amanda is riding her bicycle. She rides for 17.5 kilometers at a speed of 7 kilometers per hour. For how many hours does she rid
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She was riding for 2 hours and 30 mins
8 0
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Please help! Brainliest to correct.
Margarita [4]

Answer:

We are given the following in the question:

where P(x) in millions is the number of U.S. travelers from 1990 through 2009 and x = 1 represents 1991.

We have to approximate the number of U.S. travelers to other countries in each given year.

​(a) 1990

We put x = 0 in the given function.

Thus, there are 48.09 millions U.S. travelers in 1990.

​(b) 2000

We put x = 10 in the given function.

Thus, there are 56.888 millions U.S. travelers in 2000.

​(c) 2009

We put x = 19 in the given function.

Thus, there are 31.085 millions U.S. travelers in 2009.

Step-by-step explanation:

Hope this helps:) plz mark as brainliest I really need it:)

7 0
2 years ago
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