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2 years ago

PLEASE HELP ME WITH THIS PROBLEM, SYSTEM OF LINEAR EQUATIONS, 30 POINTS!!!!

Mathematics

1 answer:

Alex Ar [27]2 years ago

5 0

Answer:

You can either use substation or you can use elimination on both of the problems

Step-by-step explanation:

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Write an expression for: the product of 4 and a number. Use x as the variable. Who ever gets it correct first gets brainliest.

maksim [4K]

X(4*1) because I’m just doing what I’m told.

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2 years ago

(c + b + a) + (-2a - 3b + c)

inna [77]

━━━━━━━☆☆━━━━━━━

▹ Answer

2c - 2b - a

▹ Step-by-Step Explanation

(c + b + a) + (-2a - 3b + c)

Remove the parentheses

c + b + a + (-2a - 3b + c)

Collect like terms

2c + b + a - 2a - 3b

Final Answer

2c - 2b - a

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

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3 years ago

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(Ross, 4.78) A jar contains 4 white and 4 black marbles. We randomly choose 4 marbles. If 2 of them are white and 2 are black, w

KATRIN_1 [288]

Answer:

Step-by-step explanation:

Given

Jar contains 4 white and 4 black marbles

We randomly select 4 marbles out of which 2 are white and 2 are black

Probability that 2 white and 2 black marbles are selected is

$P=\frac{^4C_2\times ^4C_2}{^8C_4}$

$P=\frac{18}{35}$

The process is continue for n trails until we choose the correct order

i.e. we have to fail in n-1 trails

For exact n selection Probability is given by

$Req.\ Probability=Probability\ of\ failure\ in\ (n-1)\ trials\times Probability\ of\ getting\ exact\ order$

$=\left ( 1-\frac{18}{35}\right )^{n-1}\times \frac{18}{35}$

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3 years ago

When calculating for volume, you use the area of the 2D shape. True or false.

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Answer:

I think true.

Step-by-step explanation:

Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height.

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2 years ago

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Answer:

x-intercept (-7,0)

y-intercept (0,2)

Step-by-step explanation:

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3 years ago

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