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alina1380 [7]
3 years ago
12

Anyone know the answer to this?

Mathematics
2 answers:
zavuch27 [327]3 years ago
6 0

Answer:

3x-5+19-x+2x

5x-x=14

4x=14

Hope that helps

jeyben [28]3 years ago
3 0
3x-5+19-x+2x
5x-x=14
4x=14
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Can someone help me with this question!Does the shaded region below represent a value of 3/4 why or why not? Please help immedia
Nana76 [90]

Answer:

Yes

Step-by-step explanation:

Because the circle is divided into 4 parts, and 3 out of 4 of the parts are shaded.

5 0
3 years ago
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What is the y value of the vertex of the function f(x)=-(x-3)(x+11)
AnnyKZ [126]

Answer:

49

Step-by-step explanation:

Because there is a minus sign infront of x-3, we can convert x-3 into the negative form:

- * x

- * -3

-x + 3

Which gives us:

(-x + 3)(x + 11)

Now expand the brackets with the formula:

(a + b)(c + d) = ac + ad + bc + bd

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3 * x = 3x

3 * 11 = 33

-x² - 11x + 3x + 33

-x² - 8x + 33

The formula for finding the x coordinate of a vertex in a quadratic equation is:

x = \frac{-b}{2a}

Plug known variables in:

x = \frac{-(-8)}{2(-1)}

x = \frac{8}{-2}

x = -4

Now, to find the y coordinate, plug this variable back into the quadratic equation:

-x² - 8x + 33

y = -(-4^2) - (32) + 33\\y = -16 + 32 + 33\\\\

y = 49

So the y coordinate of the vertex is 49.

Hope this helps!

4 0
3 years ago
A car is moving at a speed of 50 km/hour. The driver takes her foot off of the accelerator and the car coasts to a stop. Why? A)
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C) without an external energy source, fiction stops the car

<em>Sure hope this helps you</em>

4 0
2 years ago
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7 0
2 years ago
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Alla [95]

Answer:

x=5

Step-by-step explanation:

Step 1: Subtract 3x from both sides.

6x−3−3x=3x+12−3x

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Step 2: Add 3 to both sides.

3x−3+3=12+3

3x=15

Step 3: Divide both sides by 3.

3x/3=15

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8 0
2 years ago
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