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3 years ago

7x to the fourth power- 5x to the fourth power

Mathematics

1 answer:

34kurt3 years ago

6 0

Answer:
7x ^4 - 5x^4
2x^4

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Abraham just accepted a new job at consulting firm that pays $47,500 during the first year, with an annual increase of 7% per ye

gladu [14]

Answer:

64,125 I think

Step-by-step explanation:

7%x 5 years =35%

35% of 47, 500 is 16625

16625 + 47,500=64,125

5 0

3 years ago

Read 2 more answers

Solve the following system of equations. Write each of your answers as a fraction reduced to lowest terms. In other words, write

morpeh [17]

Answer:

x = 57/28

y = -95/84

z = 97/168

Step-by-step explanation:

Use the application in the next link: https://www.zweigmedia.com/RealWorld/tutorialsf1/scriptpivotold.html

Start with the expanded array:

$\left[\begin{array}{cccc}1&5&8&1\\3&2&2&5\\-2&-7&2&5\\\end{array}\right]$

then using the tool provided, make row operations until you find the solution:

r2 = r2-3r1

$\left[\begin{array}{cccc}1&5&8&1\\0&-13&-22&2\\-2&-7&2&5\\\end{array}\right]$

r3 = r3+2r1

$\left[\begin{array}{cccc}1&5&8&1\\0&-13&-22&2\\0&3&18&7\\\end{array}\right]$

r2 = r2*(-1/13)

$\left[\begin{array}{cccc}1&5&8&1\\0&1&22/13&-2/13\\0&3&18&7\\\end{array}\right]$

r1 = r1- r2*5

$\left[\begin{array}{cccc}1&0&-6/13&23/13\\0&1&22/13&-2/13\\0&3&18&7\\\end{array}\right]$

r3 = r3+ r2*-3

$\left[\begin{array}{cccc}1&0&-6/13&23/13\\0&1&22/13&-2/13\\0&0&168/13&97/13\\\end{array}\right]$

r3 = r3*13/168

$\left[\begin{array}{cccc}1&0&-6/13&23/13\\0&1&22/13&-2/13\\0&0&1&97/168\\\end{array}\right]$

r2 = r2- r3*22/13

$\left[\begin{array}{cccc}1&0&-6/13&23/13\\0&1&0&-95/84\\0&0&1&97/168\\\end{array}\right]$

r2 = r2+ r3*6/13

$\left[\begin{array}{cccc}1&0&0&57/28\\0&1&0&-95/84\\0&0&1&97/168\\\end{array}\right]$

Here you have a reduced array an therefore the answers to each variable are on each row:

$\left[\begin{array}{c}x\\y\\z\end{array}\right]$

8 0

3 years ago

The price of p of an ice cream is 3.95 plus 0.85 for each topping t on the ice cream

Lunna [17]

Answer:

4.80

Step-by-step explanation:

add them up 4.80 dollars

5 0

3 years ago

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Is a cube a polygon? Why or why not?

myrzilka [38]

No. A cube is a 3D figure and polygon is a 2D one.

5 0

3 years ago

Find parametric equation of a line with a slope of -2 and passes through (-10,-20)

rosijanka [135]

$y- y_{0} =m(x- x_{0} ) \\ m= \frac{y_{1}- y_{0}}{x_{1}- x_{0} } \\ y-(-20)= (-2)(x-(-10)) \\ y+20=-2x-20 \\ y=-2x-40$

7 0

3 years ago