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Inessa05 [86]
3 years ago
10

How to find the maximum value of a quadratic function?

Mathematics
1 answer:
Iteru [2.4K]3 years ago
8 0
Suppose
y = a {x}^{2}  + bx + c
if a>0 it has min if 0>a it has max
min \: y = (4ac -  {b}^{2} ) \div 4a
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Maggie's brother is three years younger than twice her age. The sum of their ages is 24 how old is maggie?
Vanyuwa [196]

The variable for Maggie will be M and 2x-3 be her younger brothers age (<u>Twice her age). </u>We then would turn this into <u>an algebraic problem</u>. (m+2x -3=24).

3x-3=24, we would add 3 to both sides (-3 and 24). 24 + 3 equals 27, we now have to divide -3x and 27 on both sides, which equals <u>9. (x=9)</u>



6 0
3 years ago
Is it - or + 60 plz help me
Artemon [7]
+60 two negatives equal a positive
6 0
3 years ago
I need the help for number 7 plz help me as soon as possible plz help me
Alisiya [41]

Answer:

B

Step-by-step explanation:

you need to divide both 15 and 25 by 5

15 divided by 5 = 3

25 divided by 5 = 5

^^

8 0
3 years ago
I need help with this please!!!!
Lisa [10]

Answer:

∠3=95°

∠4=85°

Step-by-step explanation:

6 0
3 years ago
Which number line shows the correct placement of 25%,14 1 4 , and 12 1 2 ?
3241004551 [841]

Answer:

3.5

Step-by-step explanation:

25%=0.25

0.25*14=3.5

7 0
3 years ago
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