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3 years ago

What is the equation of the graph ?

Mathematics

1 answer:

ZanzabumX [31]3 years ago

4 0

Answer:

what graph

Step-by-step explanation:

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David gained 16 pounds over the winter. he went on a diet and lost 25 pounds. then he regained 4 pounds and weighed 177 pounds.

Alex787 [66]

Let x be the weight of David so

x+16-25+4 = 177

x-5=177

x= 177+5= 182 pound

8 0

3 years ago

Convert the following numbers into scientific notation. ( i did them but I feel like they wrong can y’all correct them if they a

ladessa [460]

Answer:

only 4 is incorrect...

1,450,000 = 1.45 x $10^{6}$ NOT

1,450,000 = 1.45 x $10^{7\\}$

Step-by-step explanation:

4 0

3 years ago

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

marishachu [46]

Answer:

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

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.

Row operation 1 : Multiply the 1st row by -1. So..........

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

Row operation 2: Add -2 times the 1st row to the 2nd row. So.......

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

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

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

Row operation 4: 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

If F(x) = 3x + 10x and g(x) = 5x - 3, find (f+g)(x)

Ugo [173]

(f+g)(x) represents the sum of the two functions f(x) and g(x).

Arrange these functions vertically and add up like terms:

 f(x) = 3x + 10
+g(x) = 5x - 3
-----------------------
(f+g)(x) = 8x + 7

Please note: You've typed in "F(x) = 3x + 10x and g(x) = 5x - 3."
I doubt that F(x) actually equals 3x + 10x. Please ensure that you have copied down the original problem correctly. Come back once you've done that, so that we can finish this problem solution.

5 0

3 years ago

A $40.00 skateboard is discounted 30%. If sales tax is 5%, what is the amount of tax paid?

natta225 [31]

Answer:

$1.40

Step-by-step explanation:

40 times 30% = 28 because 30% of 40 is 12 so 40-12 =28

28 times .05= 1.40 which is the tax of the final total

4 0

4 years ago

Read 2 more answers