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Zepler [3.9K]
3 years ago
6

Find the coordinates of the vertex of the following parabola algebraically. Write your answer as an (x , y) point

Mathematics
2 answers:
cluponka [151]3 years ago
7 0
(4,-7)

Do it by making factors of x by using middle term splitting method. You can learn about this method by watching you tube video . Then find out the y.
vlabodo [156]3 years ago
3 0
The vertex to y=x^2+8x-23 is (4,-7)
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I need help with these TWO QUESTIONS.
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Which theorem would be used to prove the triangles below as congruent?
Stells [14]

Answer:

  A:  HL

Step-by-step explanation:

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4 0
2 years ago
The Census Bureau estimates that in 2020, 15 of the 50 states will have a Spanish-speaking majority. What percent of the states
Vinvika [58]
The answer is:  [C]:  "30%" .
_____________________________________________________
Explanation:
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Note that: "%" ; or "percent" means "out of 100" ; or "divided by 100" .
______________________________________________________
Method 1) 

15/50 = ?/ 100 ;

Look at the denominators:

50 * (what value?) = 100 ? ;  → "100 ÷ 50 = 2" ;

→ 50 * 2 = 100 ;

So:  "15/50 = (15*2)/(50*2) = "30/100" ; which is "30%" .
___________________________________________
Method 2:
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 "15/50" = (15÷5) / (50÷5) = 3/10 ; 

3/10 = (3*10) / (10*10) = 30/100 ; which is:  "30%" .
__________________________________________
Method 3:  (slight variation of "Method 2" above):
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3/10 = 0.3 = 0.30 = (0.30 * 100) % =  " 30% " .
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4 0
4 years ago
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a_sh-v [17]
To find the number of non-defective chips, we simply use this equation:
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8000/5
Now you simply divide:
1600
1600 chips aren't defective
4 0
3 years ago
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