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katrin [286]
4 years ago
14

Plot on graph.

Mathematics
1 answer:
amid [387]4 years ago
3 0

Answer:

Axis of symmetry: x=-2

Maximum point: (-2,8)

Step-by-step explanation:

The given function is h(x)=-\frac{1}{2}x^2-2x+6.

We can complete the square to reveal the axis of symmetry and the vertex.

We factor to get:

h(x)=-\frac{1}{2}(x^2+4x)+6

We add the zero pairs and obtain a perfect square:

h(x)=-\frac{1}{2}(x^2+4x+4-4)+6

h(x)=-\frac{1}{2}(x^2+4x+4)+2+6

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

The function is now in the form h(x)=a(x-h)^2+k, where V(h,k) =(-2,8) is the vertex.

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I need to know the answer
makkiz [27]

Step-by-step explanation:

3k + 2k - 6 = 8k + 3

8k - 3k - 2k = - 6 - 3

8k - 5k = -9

3k = - 9

k = - 9/ 3

K = - 3

Hope it will help you :)

3 0
3 years ago
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What are two ways to find the slope of a line?​
DedPeter [7]

Answer:

m = (y - y)/(x - x)

Rise/run

Step-by-step explanation:

4 0
3 years ago
The three incoming currents at a node in an electrical current measure .7 amps, .68amps, .47 amps. two of the three outgoing cur
irakobra [83]
Each current is .25 amps
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4 years ago
Here is a flower made up of yellow hexagons, red trapezoids, and green triangles.
Law Incorporation [45]

Answer: Part a) You could build 5 copies of the flower pattern  

Part b) You would have 40 red trapezoids left over

Step-by-step explanation:

The complete question in the attached figure

Part a)

Let

x -----> the number of yellow hexagons

y ----> the number of red trapezoids

z ----> the number of green triangles

we know that

The flower pattern has the following ratios

\frac{x}{y}=\frac{6}{2} ----\frac{x}{y}=3 ---- \text {equation A}

\frac{x}{z}=\frac{6}{9} --\frac{x}{z}=\frac{2}{3} -- \text {equation B}

\frac{y}{z}=\frac{2}{9} ------ \text {equation C}

Find out how many copies of this flower pattern could you build if you had 30 yellow hexagons,50 red trapezoids, and 60 green triangles

1) For x=30

Divide 30 by 6 (remember that in one pattern there are 6 yellow hexagons)

30/6=5\ copies

Verify the quantity of y needed and the quantity of z needed

Find the value of y

\frac{30}{y}=3 ----y=30/3=10\\

10 < 50 ----> is ok

Find the value of z

\frac{30}{z}=\frac{2}{3} --- z=30*3/2=45

45<60 --->is ok

2) For y=50

Divide 50 by 2 (remember that in one pattern there are 2 red trapezoids)

50/2=25\ copies

Verify the quantity of x needed and the quantity of z needed

Find the value of x

\frac{x}{50}=3 ----x=50*3=150

150 > 30 ----> is not ok

3) For z=60

Divide 60 by 9 (remember that in one pattern there are 9 green triangles)

60/9=6.7 copies

Round down

6 copies -----> 6(9)=54 green triangles

Verify the quantity of x needed and the quantity of y needed

Find the value of x

\frac{x}{54}=\frac{2}{3} --- z=54*2/3=36

36> 30 --->is not ok

therefore

You could build 5 copies of the flower pattern

Part b)

we know that

x:y:z=6:2:9

If you build 5 copies

1) You would use 5*6=30 yellow hexagons and you would have 0 hexagons left over

2) You would use 5*2=10 red trapezoids and you would have (50-10=40) trapezoids left over

3) You would use 5*9=45 green triangles and you would have (60-45=15) triangles left over

therefore

You would have 40 red trapezoids left over

3 0
4 years ago
Solve x2 + 2x + 9 = 0. (2 points) x equals negative 2 plus or minus 4 I square root of 2 x equals negative 2 plus or minus 2 I s
vazorg [7]

Answer:

try the answer C

Step-by-step explanation:

4 0
3 years ago
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