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Vlad [161]
3 years ago
7

Please help! Pre-calculus is very confusing.​

Mathematics
1 answer:
ZanzabumX [31]3 years ago
4 0

Answer:

-1 < x < 0

Step-by-step explanation:

f(x) is a cubic function, so it can have up to 3 real zeros.  The first option lists 4 intervals, which is too many.

Check the second option:

f(-1) = -6

f(0) = 7

f(x) changes signs between x=-1 and x=0, so there must be a 0 in that interval.

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3 years ago
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Find IJ, JK, and IK <br> Analyze the diagram below and complete the instructions that follow.
fredd [130]
IJ=x-4
JK=5x+12
IK=9x-19

IJ+JK=IK
(x-4)+(5x+12)=(9x-19)
x-4+5x+12=9x-19
6x+8=9x-19
6x+8-6x+19=9x-19-6x+19
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4 0
3 years ago
What is the slope of a line perpendicular to the line whose equation is 10x + 6у –84. Fully simplify your answer.​
mixer [17]

Answer:

The slope is 3/5.

Step-by-step explanation:

I am assuming you mean

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So the slope of this line is -5/3 and the slope of a line perpendicular to it is

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5 0
3 years ago
Can someone please explain this for me? is the answer -15?
frosja888 [35]

Answer:

Step-by-step explanation:

3 0
4 years ago
REALLY NEED HELP! PLEASE
Soloha48 [4]
D is the right answer because g is midpoint of ah and e is midpoint of ab and eg is parallel to bh so eg equals half bh
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