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suter [353]
3 years ago
11

G(x)=3x^2+6x−9 I need the vertex for this please

Mathematics
1 answer:
aleksley [76]3 years ago
5 0

Answer:

-1, -12

Step-by-step explanation:

you take b which is 6 and make it negative, then you take a and multiply it by 2, which is 6. you then take the 2 numbers and put the -b over 2a in this formula -b/2a giving you -1 as your x value

after you do that, you input the -1 into the equation as x and the value you get out of that (-12) is the y value of the vertex

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Converting Units Attachment Included
kumpel [21]
100÷11=9.09090909
converting it it will be 9.1 miles per hour
4 0
3 years ago
Find the slope of the line passing through the two points.<br><br> (2.1, 3.8), (3.1, 7.6)
bixtya [17]

Answer:

3.8

Step-by-step explanation:

Slope formula- m = y2 - y1            

                                x2 - x1      

x1, y1

2.1, 3.8

                                   7.6 - 3.8

                                    3.1 - 2.1   =   3.8

x2,y2

3.1, 7.6                          

3 0
2 years ago
Find the surface area of a sphere with radius of 8inches
diamong [38]

Answer:

200.96in

Step-by-step explanation:

I used this equation with 3.14 as pi

Area = 1/2 * 2radius*pi * radius

6 0
3 years ago
Kayte wants to buy a new sled she has already save 35% of them out she needs what fraction describes this percent
e-lub [12.9K]
In order to find what fraction describes this percentage, you first need to know that no matter what percentage you are working with, if you want to convert it into a fraction, put the 35 as the numerator and 100 as the denominator. If you still don't know what I mean, 35 at the top of the fraction and 100 at the bottom. Like this; 35/100. Then, you can simplify it by finding a common multiple between 35 and 100. For example, 5 can be divided into 35 and 100. 35 divided by 5 is 7 and 100 divided by 5 is 20. Your result is 7/20, which can further no more be simplified because there are no more common multiples between the two numbers.

8 0
3 years ago
Which one is it A. B. C. or D.
nadya68 [22]
7x + 2y = 2
2x - y = 10

2y = - 7x + 2
- y = - 2x + 10

2y = -7x + 2
y = 2x - 10

y=\frac{-7x+2}{2}
y= 2x - 10

y = -3.5x + 1
y =  2x - 10

Now, let's find "x" first by doing a substituion !

2x - 10 = - 3.5x + 1
y = 2x - 10

2x + 3.5x = 1 + 10
y = 2x - 10

5.5x = 11
y= 2x - 10

x =  \frac{11}{5.5}=2
y= 2*2 - 10 = 4 - 10 = -6

In short, the answer would be : y = -6 (Option B).

Hope this helps !

Photon



8 0
3 years ago
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