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2 years ago

Which is the answer ?

Mathematics

1 answer:

erik [133]2 years ago

4 0

Answer:

(a) y = ±(√x)/2

Step-by-step explanation:

You want to find y such that ...

x = f(y)

x = 4y^2 . . . . . . . put in the expression for f(y)

x/4 = y^2 . . . . . . .divide by 4

±√(x/4) = y . . . . . take the square root

y = ±(√y)/2 . . . . . simplify

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Last year 64 new houses were built in a neighborhood so far this year 7/8 of them have been sold how many new houses have been s

laiz [17]

Answer:

Step-by-step explanation:

for this problem you would first figure out what 1/8 of 64 is. 1/8 of 64 is 8.so we do 7*8 to get 56 so 56 of the 64 houses have been sold

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2 years ago

2.4n + 1.2n - 0.12 = 7.08

Basile [38]

Answer:

n=2

Step-by-step explanation:

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3 years ago

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c) Your parents have been advised to save 5% of their income for your college education, which would include money for housing,

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In one year they would have saved up $2447.40 for your education
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2 years ago

Read 2 more answers

Correct Number Formats

IrinaK [193]

Answer:

Step-by-step explanation: From the above question, we have been given some hints to assist in the number interpretation.

Answers are:

-4.99

1.9435

3.25E4

1.56e-9

The above selected numbers have been selected using the hints below:

You cannot have commas in numbers.

You cannot have a space in a number.

You cannot substitute the letter O for zero or the letter l for 1.

You cannot include the units or a dollar sign in the number.

You can have the sign of the number, + or -.

3 0

3 years ago

Suppose a parabola has vertex (6,5) and also passes through the point (7,7). Write the equation of the parabola in vertex form.

jek_recluse [69]

Answer:

Choice B: $y = 2\, (x - 6)^{2} + 5$ .

Step-by-step explanation:

For a parabola with vertex $(h,\, k)$ , the vertex form equation of that parabola in would be:

$\text{$y = a\, (x - h)^{2} + k$ for some constant $a$}$ .

In this question, the vertex is $(6,\, 5)$ , such that $h = 6$ and $k = 5$ . There would exist a constant $a$ such that the equation of this parabola would be:

$y = a\, (x - 6)^{2} + 5$ .

The next step is to find the value of the constant $a$ .

Given that this parabola includes the point $(7,\, 7)$ , $x = 7$ and $y = 7$ would need to satisfy the equation of this parabola, $y = a\, (x - 6)^{2} + 5$ .