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2 years ago

A parabola opening up or down has vertex (0, -2) and passes through (8, -18). Write its

Mathematics

1 answer:

madreJ [45]2 years ago

5 0

Answer:

f(x) = -1/4(x - 0)^2 - 2

Step-by-step explanation:

vertex form:

f(x) = a(x - h)^2 + k

1) put the vertex in the equation, ( (h, k) is the vertex)

f(x) = a(x - 0)^2 - 2

2) plug in the point (8, -18) to find the value of a

-18 = a(8 - 0)^2 - 2

-18 = a(64) - 2

-16 = a(64)

-16/64 = a

-1/4 = a

3) plug in the value of a into the equation

f(x) = -1/4(x - 0)^2 - 2

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How do I write the number in 2 other forms 0.632 and 4.293 ?

ch4aika [34]

Answer: Two forms are expanded and fraction and mixed fractions.

Step-by-step explanation:

Two forms are given below:

Case: I

Expanded form :

$0.632=6\times \frac{1}{1000}+3\times \frac{1}{100}+2\times \frac{1}{10}$

And

$4.293=4\times 1+2\times \frac{1}{1000}+9\times \frac{1}{100}+3\times \frac{1}{10}$

we can write in fractions and mixed fraction,

Case II:

Fractions and mixed fractions

$0.632\\\\=\frac{632}{1000}\\\\=\frac{79}{125}$

and

$4.293=4\frac{293}{1000}$

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3 years ago

Read 2 more answers

Which is a multiple of 5 17,532,235 or 48 ?

Degger [83]

Multiples of 48-2,6,12,24,4
multiples of 5 17,532,235-2,8 19 etc

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4 years ago

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Davis Construction is building a new housing development. They begin by mapping the development out on a coordinate grid. They p

murzikaleks [220]

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3 years ago

Fiona, Dan and Stephen share £66 in a ratio 1:3:2. How much money does each person get?

Viefleur [7K]

Answer:

Fiona=11

Dan=33

Stephen=22

Step-by-step explanation:

Fiona:1/2+3+1×66

1/6×66

=11

Dan: 3/6×66=33

Stephen:2/6×66=22

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3 years ago

You draw 2 cards from a deck. What’s the probability that one is red and the other is black

Andreyy89

Answer:

26/52 50%

Step-by-step explanation:

52 cards in a deck, 26 are black and 26 are white.

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3 years ago