Writing explain how you know when a linear system in three variables has infinitely many solutions.

1 answer:

5 0

Pick any two pairs of equations<span> from the system. Eliminate the same </span>variable<span> from each pair using the Addition/Subtraction method. Solve the system of the two new </span>equations<span> using the Addition/Subtraction method.</span>

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If zb⊥ya , find m<br><br>A. 28<br><br>B.46<br><br>C.56<br><br>D.62<br><br>I'll give you brainliest

prohojiy [21]

<h3>Answer:</h3>

A. 28

<h3>Step-by-step explanation:</h3>

We assume m is the measure of the marked unknown angles: ∠BZY ≅ ∠BZA

(5x +3)° = (2x +18)°

Divide by ° and subtract 2x+3:

... 3x = 15

... x = 5

Then ∠BZA = (2·5 +18)° = m = 28°

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3 years ago

Work at a convenience store 60% of your time, and earn $11.00 an hour. Referee games at your city park 25% of your time, and ear

pogonyaev

Answer:

13.75

Step-by-step explanation:

The expected value of the hourly wage is the sum of the probabilities (percentage of time spent on each job) multiplied by the payoff (money earned) from each possible occurrence (job):

(0.6 × 11) + (0.25 × 19) + (0.15 × 16) = $13.75.

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3 years ago

You are part of a school and have to report the results of standardized test scores. Which measure of central tendency would you

USPshnik [31]

You should know this

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3 years ago

Simpilfy the following expession (-1)(-7)(4)

Leno4ka [110]

Answer:

Step-by-step explanation:

(-1)(-7)(4)

(7)(4)

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3 years ago

The highest or lowest point on a parabola is called

pickupchik [31]

Answer:

Vertex

Step-by-step explanation:

Brainliest?

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3 years ago