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LiRa [457]
3 years ago
6

Solve the following quadratic equations using completing the square x2 + 10x + 55 = 0

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
3 0
Is the “x2” supposed to be x squared?
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What is h(-4) for h(x) =(x-2)^2 +3x
PSYCHO15rus [73]

(- 4 - 2)^{2}  + 3( - 4) \\  = ( - 6)^{2}  + ( - 12) \\  = 36 - 12 \\  = 24
The answer is 24
7 0
2 years ago
12/23<br> 19/34<br> 22/45<br> 8/41
lbvjy [14]

Why are you even asking, i'll edit the answer once I know.

7 0
2 years ago
Read 2 more answers
How to find vertex form
Nikolay [14]
Y = x^2 - 6x + 7
a = 1
b = -6
c = 7

Before you get the A.O.S, you must first solve for the vertex.
The vertex formula is \frac{-b}{2a} 

Plug in the numbers:
-(-6) / 2(1)
--6 = 6 and 2*1 = 2
6/2
Vertex (or x) = 3

Now you have to plug in the x in order to find the vertex (or y)
Your equation should now look like this;
y = (3)^2 - 6 (3) +7
Solve each part separately and then add it up...

3^2 = 9
-6 * 3 = -18
+7

9 - 18 + 7
A.O.S (or y) = -2

7 0
3 years ago
1.
Lostsunrise [7]

Using the law of sines, it is found that the distance between the kite and the dog is of 284.77 meters.

<h3>What is the law of sines?</h3>

Suppose we have a triangle in which:

  • The length of the side opposite to angle A is a.
  • The length of the side opposite to angle B is b.
  • The length of the side opposite to angle C is c.

The lengths and the sine of the angles are related as follows:

\frac{\sin{A}}{a} = \frac{\sin{B}}{b} = \frac{\sin{C}}{c}

For the situation described, we have that:

  • The height is opposite to the angle of 42º.
  • The 425 meters are opposite to the angle of 87º.

Hence:

\frac{\sin{42^\circ}}{h} = \frac{\sin{87^\circ}}{425}

Applying cross multiplication:

h = 425\frac{\sin{42^\circ}}{\sin{87^\circ}}

h = 284.77 meters.

More can be learned about the law of sines at brainly.com/question/25535771

#SPJ1

3 0
2 years ago
Anyone know how to do this?
Gekata [30.6K]

Answer: so i dont but hopefully someone cane help you

Step-by-step explanation:

4 0
3 years ago
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