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cricket20 [7]
3 years ago
13

Simplify this expression: 1/2(10x + 12) - (3.5x - 7) *

Mathematics
1 answer:
Anna71 [15]3 years ago
7 0

Simplified Expression:

1.5x+13

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vivado [14]

Answer:

See below  

Step-by-step explanation:

a) Create a table containing a few values of x and y

<u> x </u>   <u>  y   </u>

-2     -⅓

-1       ⅓

0     1

 1     1⅔

 2    2⅓

(b) Draw the graph

Plot the points and draw a straight line through them. Make it a <em>dashed line,</em> because the line does not include the points.

Your graph should look like Fig. 1.

<em>(d) Check a point to see if it satisfies the inequality. </em>

An easy one to check is the origin, (0, 0).

0 < ⅔(0) + 1

0 < 1

The area <em>below </em>the graph satisfies the inequality.

<em>(e) Shade in the area below the graph </em>

This shows that all points in that area satisfy the inequality. The final graph should look like Figure 2.

5 0
3 years ago
Find the remainder when f(x) = x3 − 14x2 + 51x − 22 is divided by x − 7. 36 8 −8 −36
vlabodo [156]
This is by the rmeainder theorem f(7) 

= 7^3 - 14(7)^2 + 51(7) - 22

=  -8
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A portion of the Quadratic Formula proof is shown. Fill in the missing statement. x equals b plus or minus the square root of b
liraira [26]

Answer:  x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}

<u>Step-by-step explanation:</u>

When you subtract b/2a from both sides, you end up with the Quadratic Formula.

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Step-by-step explanation:

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