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JulsSmile [24]
3 years ago
13

A system of equations is graphed on the coordinate plane.

Mathematics
1 answer:
mamaluj [8]3 years ago
5 0
No solutions jzksksalalaooaoaoaiaiaiakkskakakakakkaksoaoaoaokw
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The tax on a $80 item is $3.20.<br> Find the tax on a $140 item.<br> What is the tax?
allsm [11]
Tax is 4%

Tax in the $140 item is $5.60
(0.04x140)
7 0
2 years ago
Lee and Marisol are conducting a science experiment to identify different kinds of macromolecules in food. They prepare the foll
astra-53 [7]

Answer:

Step-by-step explanation:

8 0
3 years ago
Need step by step detailed answer
kolezko [41]

Answer:

y = -4x - 4

Step-by-step explanation:

If we have two lines in slope intercept form as

y = m_1x + c_1 \text{ and}\\y = m_2x + c_2\\

then the product of the slopes m_1m_2 = -1

In other words, m_2 = -\frac{1}{m_1}

We have the first line as

y = \frac{1}{4}x + 5\\\\

The slope of this line is \frac{1}{4}

The slope of a perpendicular line will be the negative of the reciprocal of this line

Reciprocal of 1/4 is 4

So slope of perpendicular line is -4 which implies

y = -4x + c

We have to determine c

Since the line passes through (-3, 8), plug in these values for x and y in the equation and solve for c

8 = (-4)(-3) + c

8 = 12 + c

c = -4

So the equation of the perpendicular line is y = -4x - 4 (Answer)

It is always a good idea to plot these graphs and see if they fit the data provided

The attached plot shows the two graphs and you can see they are perpendicular to each other and the perpendicular line(the answer) passes through point (-3,8)

4 0
2 years ago
Which table represents a function?
olganol [36]

Answer:

The first one because it does not repeat the numbers

Step-by-step explanation:

5 0
3 years ago
How to solve Question 3(c)?
BARSIC [14]
From your work on parts (a) and (b), you know that
.. r = 3.50
.. s = 140
The composite index of production cost from 2007 to 2009 is 114.2.

(c) If the production cost in 2007 was RM50, then in 2011 it was
.. RM50 * (2009 index) * (2011 index) = RM50 * 1.142 * 1.200 = RM68.52
7 0
3 years ago
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