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hichkok12 [17]
3 years ago
9

BIU A

Mathematics
1 answer:
marta [7]3 years ago
5 0

how many classes are there?

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What is the axis of symmetry for f(x) = -3x2 + 18 - 7
solong [7]

The vertex form:

y=a(x-h)^2+k\\\\(h,\ k)-vertex

The axis of symetry is x = h.

y=ax^2+bx+c\to h=\dfrac{-b}{2a}

We have

f(x)=-3x^2+18x-7\to a=-3,\ b=18,\ c=-7

Substitute:

h=\dfrac{-18}{(2)(-3)}=\dfrac{-18}{-6}=3

<h3>Answer: x = 3</h3>
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4 years ago
123% of what is 111?<br><br> this is one of the reasons I hate math
Olegator [25]

Answer:

90.244

Step-by-step explanation:

111 ÷ 1.23 = 90.244

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3 years ago
If x ≥ 0, then x + |x| = ?
oee [108]

Answer:

x + |x| = 2x

Step-by-step explanation:

if the number is more than 0 or greater, then if you add it to itself, it will be equal to the value of two of the previous number. Hope this helps

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3 years ago
Ill be giving brainlist:( please help
WITCHER [35]

Answer:

Step-by-step explanation:

The translation vector < 4, - 2 > means each point is being moved 4 units to the right and 2 units down.

X(0, 3) ------> X' ( 0 + 4, 3 - 2 ) = X'(4, 1)

Y( - 1, 1) ------> Y' ( - 1 + 4, 1 - 2 ) = Y'(3, - 1)

Z( - 3, 4) -----> Z' ( - 3 + 4, 4 - 2 ) = Z'(1, 2)

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3 years ago
Write 0.896146 to 2 significant figures.​
likoan [24]
The correct answer is somewhere
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