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abruzzese [7]
2 years ago
8

Pls im stuck and i really need help

Mathematics
1 answer:
Gre4nikov [31]2 years ago
4 0

There is  website called symbolab to help , or desmos

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Given the equation f(x) = (x 3)2 – 8, fill in the blanks:axis of symmetry: x =a1vertex:(a2, a3)number of real solutions: a4
Paha777 [63]
F ( x ) = ( x + 3 )² - 8 = x² + 6 x + 9 - 8 = x² + 6 x + 1
For the quadratic function:
Axis of symmetry is: x = -b/ 2 a, where: a = 1, b = 6 ( because it it in the form:
y = a x² + b x + c ).
Therefore: x = -6 / 2 = -3.
f ( - 3 ) = ( - 3 + 3 )² - 8 = 0 - 8 =  - 8
And D = b² - 4 a c = 6² - 4 * 1 * 1 = 36 - 4 = 32 ( greater than 0 ). It means that there are 2 real solutions.
Answer: x = - 3 , vertex : ( - 3 , - 8 ), Number of real solutions : 2.
a 1 = - 3 ,  a 2 = - 3 , a 3 = - 8 ,  a 4 = 2. 

3 0
3 years ago
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Y = -12 when<br> x = -3 ,<br> find y when<br> x = -1 .
Juliette [100K]

Answer:

y=-4

Step-by-step explanation:

If y=4x

and y=-1

y=-1×4

y=-4

7 0
3 years ago
Plz help ASAP 20 points 10. What is the equation of a circle with radius, r = 4, and the center at (0,0)?
Ostrovityanka [42]

Answer:

a

Step-by-step explanation:

the equation for a circle centered at orgin is x^2+y^2=r where r is the radius. multiplying, adding, or subtracting any numbers to the x and y components such as the other choices here causes the circle to be translated about the graph.

5 0
2 years ago
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What is this answer I don't understand how to figure it out
Diano4ka-milaya [45]
These are congruent angles. So they would be equal to each other. 6x=4x+50

2x=50

x=25°
:)
8 0
3 years ago
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What is the area of rectangle abcd with 12 in length and 4 in width
nikitadnepr [17]

Answer: It would be

A=48    

5 0
3 years ago
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