Please help me with this math problem
2 answers:
Answer: (z+2)(z-9)
Step-by-step explanation:
to solve for this you need to find two numbers that if multiplied together they give you negative 18 and at the same time adds up to -7.
Those two numbers could be -9 and 2 .
now rewrite the expression like this.
Group them
( Factor it out z in the first grouping
z(z +2) -9(z + 2) factor out x+2
(z +2 ) (z-9)
Answer:
(z-9)(z+2)
Step-by-step explanation:
U have to find numbers which when u multiply u get -18 and subtract u get -7
-18= -9×+2,2-9=-7
Z²+2z-9z-18
Z(z+2)-9(z+2)
(Z-9)(z+2)
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Answer:
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Step-by-step explanation:
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speed = x'(t) = 1/2cos t - 2sin(2t)
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When t = pi/2,
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Answer:
(2, 4)
Step-by-step explanation:
x=2, y=4
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As said before, 160 is the correct answer
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