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stiv31 [10]
3 years ago
5

Y(y + 4) - y 2 = 6 is a quadratic equation. True or False

Mathematics
2 answers:
Maksim231197 [3]3 years ago
6 0
FALSE,\ because:\\\\y(y+4)-y^2=6\\\\y^2+4y-y^2=6\\\\4y=6
Ugo [173]3 years ago
3 0
Y(y + 4) - y2 = 6
y2 + 4y - y2 = 6
4y = 6 ⇒ False
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For what values of m does the graph of y = 3x2 + 7x + m have two x-intercepts
Irina18 [472]

we are given

y=3x^2+7x+m

To find x-intercept means we have to find zeros

and for finding zeros , we will use quadratic formula

and we have it has two x-intercepts

so, it's discriminant must be greater than 0

so, we will find discriminant

D=\sqrt{b^2-4ac}

now, we can compare with

y=ax^2+bx+c

y=3x^2+7x+m

and then we can find a , b and c

a=3,b=7,c=m

now, we can find D

D=\sqrt{7^2-4*3*m}

D=\sqrt{49-12m}

It has two x-intercepts

so,

D=\sqrt{49-12m}>0

now, we can solve for m

49-12m>0

12m

m............Answer

8 0
3 years ago
Read 2 more answers
8.
Semenov [28]

Answer:

= 3^9

Step-by-step explanation:

8 0
2 years ago
Anything to the power of 0 is always 1 right??
lana66690 [7]
Yes, that is correct. 
6 0
3 years ago
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What is the standard form of 8.2x10 to the power of 5
-Dominant- [34]

Answer:

820000

Step-by-step explanation:

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6 0
3 years ago
Please help! (Answer and explanation, NO LINKS!)
blsea [12.9K]

Answer: primeter is 20

Area :

Step-by-step explanation:

Height : 4

Base : 6

Prim - 6+6+4+4=20

Area - 6x4=24

8 0
3 years ago
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