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IrinaK [193]
3 years ago
10

Solve for x. Show your work. -1/2 x < -12

Mathematics
2 answers:
ziro4ka [17]3 years ago
7 0
-1/2x < -12 ....multiply both sides by -2, and change inequality sign
x > -12 * -2
x > 24
lesantik [10]3 years ago
3 0
All you need to do is divide -1/2 onto the other side.

-1/2x<-12

-12/ (-1/2)= 6 (a negative and a negative equals a positive)

Also, since you are dividing a negative, you flip the sign.

x>6

I hope this helps!
~cupcake
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For what values of m does the graph of y = 3x2 + 7x + m have two x-intercepts
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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

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a=3,b=7,c=m

now, we can find D

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

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so,

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now, we can solve for m

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12m

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

8 0
3 years ago
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Alex73 [517]

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3 years ago
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kompoz [17]

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Step-by-step explanation:

Given

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From the question, we have that

E'(x) = 10x + 11

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3 0
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erastova [34]
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