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LenaWriter [7]
3 years ago
6

A) Show work, b) solve, and c) graph the solutions for −7+2x>−27

Mathematics
2 answers:
8_murik_8 [283]3 years ago
7 0

Answer:

x > -10

Step-by-step explanation:

−7+2x>−27

Add 7 to each side

−7+7+2x>−27+7

2x > -20

Divide each side by 2

2x/2 > -20/2

x > -10

Zanzabum3 years ago
6 0

Answer:

Solve:

-7 + 2x > -27

Add both sides by 7:

-7 + 7 +2 > -27 +7

2x > -20

-Divide both sides by 2:

\frac{2x}{2} > \frac{-20}{2}

x > -10

After you have the answer x > -10, circle the mark above -10 on the number and draw the arrow to the right.

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choli [55]

Answer:  (f-g)(x) is equivalent to f(x) - g(x)

So that would be (2x²-5) - (x²-4x-8) = 2x² - x² + 4x + 8 - 5 = x² + 4x + 3

Hope this helps.

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2 years ago
Find derivative of y=(-3x^5+1)^3
sattari [20]

Use the chain rule:

\frac{\mathrm dy}{\mathrm dx}=3(-3x^5+1)^2\frac{\mathrm d[-3x^5+1]}{\mathrm dx}=3(-3x^5+1)^2(-15x^4)=\boxed{-45x^4(1-3x^5)^2}

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3 years ago
The diameter of a circle is 6 centimeters. What is the circle's area?<br><br> Use 3.14 for pi
Lynna [10]

Step-by-step explanation:

diameter=

2 \times\pi \times r = 6 \\ r =  \frac{6}{2 \times 3.14}  = 0.955 \\ area = \pi \times  {r}^{2}  = 3.14 \times  {0.955}^{2}  \\  =  2.87\:  {cm}^{2}

7 0
3 years ago
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.hoi I need a lil help
mihalych1998 [28]

Answer:

10

Step-by-step explanation:

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6 0
3 years ago
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HELP PLEASE 40 POINTS The graph shows the prices of different numbers of bushels of corn at a store in the current year. The tab
Vesna [10]

Answer:

see below

Step-by-step explanation:

Part A

Since the lines goes through the point (0,0) the graph is proportional. We can find the rate of change by take the price of corn and dividing by the number of bushels

24/3 = 8 dollars/ bushel

Part B

Previous Year Number of Bushels Price of Corn (dollars)

                                                  3 21

                                                 6 42

                                                  9 63

                                                 12 84

We can find the rate of change for the previous year by using the slope formula

m = (y2-y1)/(x2-x1)

m = (84-63)/(12-9)

    =21 / 3  

    = 7

The previous year was 7 dollars per bushel

The increase was 8-7 = 1 dollar per bushel

4 0
3 years ago
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