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3 years ago

5

Can someone help me with this math homework please!

2 answers:

lozanna [386]3 years ago

6 0

play free fire ok

ushebj

goldenfox [79]3 years ago

6 0

The answer to your question is B

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FUNCTION, DOMAIN, AND RANGE HELP NEEDED (25 POINTS)

Darina [25.2K]

Answer:

thanks for points lol

Step-by-step explanation:

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4 years ago

WILL MARK BRAINIEST FOR FIRST ONE WITH ANSWER!

baherus [9]

Answer:

1.Quantifying measurement error

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Step-by-step explanation:

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3 years ago

The daily low temperatures last week are shown below. What is the mean

kirill115 [55]

Answer:

i do not see the tempatures but add them all up and divide by however many tempatures there are

Step-by-step explanation:

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3 years ago

Please help!! <br> Solve the system using an augmented matrix. Show all work

marishachu [46]

Answer:

<em>The solution of the system is: $x=2, y=5$ </em>

Step-by-step explanation:

The given system of equations is.......

$-x-3y=-17\\ \\ 2x-6y=-26$

So, the augmented matrix will be: $\left[\begin{array}{cccc}-1&-3&|&-17\\2&-6&|&-26\\\end{array}\right]$

Now, we will transform the augmented matrix to the reduced row echelon form using row operations.

<u>Row operation 1 :</u> Multiply the 1st row by -1. So..........

$\left[\begin{array}{cccc}1&3&|&17\\2&-6&|&-26\\\end{array}\right]$

<u>Row operation 2:</u> Add -2 times the 1st row to the 2nd row. So.......

$\left[\begin{array}{cccc}1&3&|&17\\0&-12&|&-60\\\end{array}\right]$

<u>Row operation 3:</u> Multiply the 2nd row by $-\frac{1}{12}$ . So.......

$\left[\begin{array}{cccc}1&3&|&17\\0&1&|&5\\\end{array}\right]$

<u>Row operation 4:</u> Add -3 times the 2nd row to the 1st row. So........

$\left[\begin{array}{cccc}1&0&|&2\\0&1&|&5\\\end{array}\right]$

Now, from this reduced row echelon form of the augmented matrix, we can get that $x=2$ and $y=5$

So, the solution of the system is: $x=2, y=5$

8 0

3 years ago

A 5–foot string of lights will be attached to the top of a 4–foot pole for a holiday display. How many feet from the base of the

wel

Answer:

3

Step-by-step explanation:

The lights and pole form a right triangle. The question gives the hypotenuse as 5 and one side length as 4.

Use the Pythagorean theorem: $a^2+b^2=c^2$ .

Plug in what you are given: $4^2+b^2=5^2$

$16+b^2=25$

$b^2=9$

b = 3

Or you could recognize that it was a pythagorean triple: 3, 4, 5

5 0

4 years ago