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Sloan [31]
3 years ago
6

What are the zeros of the function f(x) = x2 + 5x + 5 written in simplest radical form?

Mathematics
1 answer:
Alik [6]3 years ago
8 0
First we need to find delta for function ax2+bx+c = 0
DELTA = b2-4ac
DELTA = 25 -( 4*1*5)= 25 - 20 = 5

x1 = (-b-√DELTA)/2a = (-5 - √5)/2
x2 = (-b+√DELTA)/2a (-5+√5)/2
 x1 and x2 are zeros of this function
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Y=3x-2;(1,1) tell whether the ordered pair is a solution of the equation
Rina8888 [55]
Insert (1,1) -> x=1, y=1 into the equation and check if both side are equal:
y=3x-2
1=3*1-2
1=1
so yes the ordered pair is a solution of the equation
3 0
3 years ago
What is 3x plus 4 equals 12
____ [38]

Answer:

3x + 4 = 12

Step-by-step explanation:

plus = +

equal =  =

but if you were looking for the answer to the equation

3x + 4 = 12

3x = 12 - 4    (the symbol changes bc i switched it to the other                        side)

3x = 8

x = 8/3

~batmans wife dun dun dun.....

5 0
3 years ago
Drag a reason to each box to complete this proof.<br><br> If 12=13x+5 , then x = 21.
Ainat [17]
<span><span>I think the answers are:

Statement          Reason</span><span><span><span>  
<span>12=<span>13</span>x+5          </span></span>Given</span><span><span>  
<span>7=<span>13</span>x          </span></span>Subtraction Property of Equality</span><span><span> 
21 = x          </span>Multiplication Property of Equality</span><span><span> 
x = 21          </span><span>Symmetric Property of Equality 

By the way, I'm doing the same exam for Geometry as well. There's a lot of proof questions on there which I'm not good at doing for the reasoning part. If you finish the exam before I do, maybe you can message me what the answers are for some of the questions on there so I know if my answers for the questions are incorrect or not. 

Besides that, hope the answer above is correct for you. 

<em>~ ShadowXReaper069</em></span></span></span></span>
5 0
3 years ago
Read 2 more answers
-8x-47=17 this is for my homework
Arisa [49]

Answer:

-8

Step-by-step explanation:

-8x - 47 = 17

      +47     +47

-8x = 64

Divide both sides by -8

x = -8


4 0
3 years ago
Read 2 more answers
Solve the following:<br> a)<br> 3x + 4/2 =9.5<br><br> b)<br> 7 + 2x /3= 5
Lunna [17]

Answer:

here it is

Step-by-step explanation:

hope u understand my dear

3 0
3 years ago
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