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Rama09 [41]
3 years ago
8

6 students are working on math 2/3 of them are working on fractions. How many of them are working on fractions

Mathematics
1 answer:
TiliK225 [7]3 years ago
3 0

4 students are working on fractions

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Solve the following proportion for y.
MAXImum [283]
The answer is 36.6

Explanation:

3y=110

y=110/3

y=36.6
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3 years ago
Graph a parabola whose intercepts are x=-3 and x=5 and whose minimum value is y =-4
blagie [28]

Answer:

y = 4(x^{2} + 8x + 15) = 4x^{2} + 32x + 60

Step-by-step explanation:

A parabola has the following format:

y = f(x) = ax^{2} + bx + c

If a is positive, it's minium value is:

y_{M} = -\frac{\bigtriangleup}{4a}

In which

\bigtriangleup = b^{2} - 4ac

Factoring:

ax^{2} + bx + c = a(x - x_{1})*(x - x_{2}), in which x_{1} and x_{2} are the intercepts.

In this question:

x_{1} = -5, x_{2} = -3

So

a(x - x_{1})*(x - x_{2}) = a*(x - (-5))*(x - (-3)) = a*(x+5)*(x+3) = a*(x^{2} + 8x + 15)

Suppose a = 1, we have:

x^{2} + 8x + 15

\bigtriangleup = 8^{2} - 4*1*15 = 4

The minimum value will be:

y_{M} = -\frac{4}{4} = -1

We want this minimum value to be -4, which is 4 times the current minimum value, so we need to multiply a by 4. Then

a = 4

And the parabola is:

y = 4(x^{2} + 8x + 15) = 4x^{2} + 32x + 60

4 0
3 years ago
!!WILL MARK BRAINLIEST!!!<br><br> please provide a small explanation with it too
Ipatiy [6.2K]

Answer:

(-2, 7); (See attachment)

Step-by-step explanation:

x + 2y = 12

7x + 2y = 0

x + 2y = 12

x = -2y + 12

Solve for y:

7x + 2y = 0

7 (-2y + 12) + 2y = 0

-12y + 84 = 0

-12y = -84

y = 7

Solve for x:

x = -2y + 12

x = -2 (7) + 12

x = -2

x = -2, y = 7

4 0
3 years ago
Brainliest + Points! Mathmetacians In Need!!
r-ruslan [8.4K]

First arrange them in ascending order.

The third qasrtile is the mean of the 7th and 8th numbers

Its 92.5  answer

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3 years ago
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Consider the first five steps of the derivation of the Quadratic Formula.
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Answer:

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Step-by-step explanation:

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