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laila [671]
2 years ago
9

I need help on this i have to get it done bhy thursday and im not even close to done

Mathematics
1 answer:
Leokris [45]2 years ago
5 0
1) incorrect
2) incorrect
3) correct
4) incorrect
5 correct
6) correct
7) incorrect
8) incorrect
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Which equation has the solutions x = 1+
BaLLatris [955]

Answer:

The last equation x2 - 2x -4 = 0

has solution  (x - 1)^2 - 5 = 0,   x  =  1 + root(5)  or  x = 1 - root(5)

Step-by-step explanation:

If a quadratic function has roots 1 and 5

f(x) = (x -1)(x- 5)

f(x) = x^2 - 6x + 5

Unless you meant.  -4 and 6  ?

g(x) = (x + 4)(x - 6)

g(x) = x^2 -2x -24

-------------------------

Or did you mean  x = 1 and x =4 ?...

x^2 + 2x + 4 = 0  :   complete square  x^2 + 2x + 1 + 3 = 0,   (x+1)^2 + 3 = 0

x^2 - 2x + 4 = 0 :  complete square:  (x -1)^2 + 3 = 0

0x^2 + 2x - 4 = 0,    2x - 4 = 0,  x = 2

x^2 - 2x - 4 = 0  becomes:   x^2 - 2x + 1 - 1 -4 = 0 ;  (x - 1)^2 - 5 = 0

5 0
3 years ago
Mr. Lopez asked kids from after school what there favorite dessert is. 15% voted for cinnamon twirls and 85% voted for jumbo coo
mafiozo [28]
85/15 is 5 2/3

so, to find 85% with 15%, you would multiply 12 (also 15%) by 5 2/3.

12*5 2/3=68.

you could also find it using the 1% method:

1% of 15 is .15.
.15*85=68.

Hope this helps!
5 0
3 years ago
PLEASE HELP ME WITH THIS....<br> BRAINLIEST AVAILABLE
Dmitrij [34]
C would be the correct answer because you want to get H alone. since everything is connected to it, divide by everything except H because that is what you are finding. that leave h= whatever is left as v divided by the stuff connected to H. (the denominator and v as the numerator). the answer that matches that correct work is c.
7 0
3 years ago
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Place the Decimal!
Zinaida [17]
0.16 so 16 cents per cookies
8 0
3 years ago
Find the missing lengths of the sides. b = , c = 16 b = , c = b = , c = b = , c = 12
FrozenT [24]

Answer:

420

Step-by-step explanation:

first buy bud then buy rellos then brake bud down split rello roll a fatty 1 gram or higher spark up higher than 4 20

6 0
3 years ago
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