Answer:
Check the attached picture, the answer with working is shown :)
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.
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B. The second row of A represents the second equation:
The coefficients of the variables are 0, 1, 5. These are the entries in row 2 of matrix A.
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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.)
Less than Lol 6+18= 24 just make that negative-24<27
Answer:
D) 0.207
Step-by-step explanation:
Binomial probability:
P = nCr pʳ qⁿ⁻ʳ
where n is the number of trials,
r is the number of successes,
p is the probability of success,
and q is the probability of failure (1−p).
Here, n = 9, p = 0.63, and q = 0.37.
If r = 4:
P = ₉C₄ (0.63⁴) (0.37⁹⁻⁴)
P = 0.1376
If r = 3:
P = ₉C₃ (0.63³) (0.37⁹⁻³)
P = 0.0539
If r = 2:
P = ₉C₂ (0.63²) (0.37⁹⁻²)
P = 0.0136
If r = 1:
P = ₉C₁ (0.63¹) (0.37⁹⁻¹)
P = 0.0020
If r = 0:
P = ₉C₀ (0.63⁰) (0.37⁹⁻⁰)
P = 0.0001
The total probability is:
P = 0.1376 + 0.0539 + 0.0136 + 0.0020 + 0.0001
P = 0.2072
Answer:
-21=-4w
w=5.25
but you don’t want decimals
so- you round down
w=5
Step-by-step explanation:
You combine like terms, and then make sure your variable is alone, the only way to get it alone from a ”mixed number” is to divide
you do the same thing to both sides
so divde each side by -4
-21/-4 = 5.25
or with it rounded down since it’s under a five
It’s 5 with the decimals removed
i hope this helps