2 years ago

Can Y’all help me with dis ASAP

Mathematics

1 answer:

steposvetlana [31]2 years ago

3 0

Answer:

I'm pretty sure its b but tell me if I'm wrong

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A Simple Random Sample reflects that ________ individual in the population has an ________ chance of being selected.

monitta

Answer:

any, equal

Step-by-step explanation:

A Simple Random Sample reflects that any individual in the population has an equal chance of being selected.

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3 years ago

Betty has a bag with 20 marbles in it. Some of the marbles are blue, some are green, and some are yellow.

Nezavi [6.7K]

392 / 500 double and take one decimal place to see percentage

52/500

56/500 e.g. 56*2 = 112 now take 1 decimal so it is 11.2%

now divide each by 20

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3 years ago

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For which values of k does the system of linear equations have zero, one, or an infinite number of solutions? [Note: not all thr

viktelen [127]

Answer:

The system has an infinite solution at k = 6, otherwise for any value of k, it has zero solution.

Step-by-step explanation:

Consider the system of linear equations:

$3x_{1} -x_{2}=2\;\;\;\;\;\;(1)\\ 9x_{1} -3x_{2}=k\;\;\;\;\;(2)$

The system of linear equations can have zero, one, or an infinite number of solutions:

simplify equation (1):

$x_{2}=3x_{1} -2$

substitute in equation (2), we get

$9x_{1} -3(3x_{1}-2)=k\\9x_{1} -9x_{1}+6=k\\0+6=k$

we cannot find the value of $x_{1}$ and $x_{2}$ .

so, there is no solution.

Multiply the equation (1) with 3 and put k is 6,

$3(3x_{1} -x_{2})=3\times2\\9x_{1} -3x_{2})=6$

it means both equations are overlapped. Then, the solution has infinite solutions.

Hence, the system has an infinite solutions at k is 6 otherwise for any value of k it has no solution.

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2 years ago

Please help me out for a brainlist :)

Nadya [2.5K]

Answer:

1,2,3,2,2

Step-by-step explanation:

because standard form is ax

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2 years ago

Solve for a: a/2 - 2/3 = a + 1/5

ki77a [65]

The answer is 4 if I am correct

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2 years ago

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