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RSB [31]
3 years ago
15

QUICKLY!!! I need the answer to this, please

Mathematics
1 answer:
Yuri [45]3 years ago
4 0

8/(1/6) = (8/1)/(1/6) = (8/1) * (6/1) = 48/1 = 48

Patel found the quotient incorrectly since he got 1/48.

To check the division, he needed to multiply 48 by 1/6 and get 8.

Instead, he multiplied 1/48 by 6, so the multiplication done as a check is also incorrect.

Answer: last choice

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oksian1 [2.3K]

-2(7-15) / 4

-2(-8) = 16

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3 0
3 years ago
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F(x)=8_-4x-x^3. g(x)=x^2+7x-9. Find f(x)+g(x)
11111nata11111 [884]

(8 - 4x -  {x}^{3} ) + ( {x}^{2}  + 7x - 9) \\  =  -  {x}^{3}  +  {x}^{2}  - 4x + 7x + 8 - 9 \\  =  -  {x}^{3}  +  {x}^{2}  + 3x - 1
(8x - 4x -  {x}^{3} ) + ( {x}^{2}  + 7x - 9) \\  -  {x}^{3}  +  {x}^{2}  + 8x - 4x + 7x - 9 \\  -  {x}^{3}  +  {x}^{2}  + 11x - 9
The answer is either B, and you forgot to put in the ^2 in the answer choice, or C, and you forgot to put an x where there is a _ in the question.

Check the actual question (the one you recieved, not the one posted here) and see where the mistakes are. If f(x) = 8x - 4x - x^3, then your answer is C. However, if B is actually -x^3 + x^2 + 3x - 1, then the answer is B.
7 0
3 years ago
(PLEASE HELP ASAP)
UNO [17]

9514 1404 393

Answer:

  A. 3×3

  B. [0, 1, 5]

  C. (rows, columns) = (# equations, # variables) for matrix A; vector x remains unchanged; vector b has a row for each equation.

Step-by-step explanation:

A. The matrix A has a row for each equation and a column for each variable. The entries in each column of a given row are the coefficients of the corresponding variable in the equation the row represents. If the variable is missing, its coefficient is zero.

This system of equations has 3 equations in 3 variables, so matrix A has dimensions ...

  A dimensions = (rows, columns) = (# equations, # variables) = (3, 3)

Matrix A is 3×3.

__

B. The second row of A represents the second equation:

  0x_1+1x_2+5x_3=-1

The coefficients of the variables are 0, 1, 5. These are the entries in row 2 of matrix A.

__

C. As stated in part A, the size of matrix A will match the number of equations and variables in the system. If the number of variables remains the same, the number of rows of A (and b) will reflect the number of equations. (The number of columns of A (and rows of x) will reflect the number of variables.)

6 0
3 years ago
X - 5 = 20 <br> x= <br><br> I need to know what the x equals
Monica [59]

Answer:

x = 25

Step-by-step explanation:

Given

x - 5 = 20 ( isolate x by adding 5 to both sides )

x = 25

5 0
3 years ago
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Circle has rad of 1.5m what angle subtended at center of circle by arc of 1m
Mumz [18]
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