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nikitadnepr [17]

3 years ago

11

Seven large hamburgers are shared equally among twelve people at a dinner. Which of the following shows the amount of a hamburge

r that each person eats?

1 answer:

iVinArrow [24]3 years ago

5 0

cut 6 into half's and spit the last into 7th's

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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>

6 0

3 years ago

Find the sum and product of the roots. 3x^<br> 2 - 4x - 7 = 0

victus00 [196]

Given the quadratic function, to get the roots we factorize:
3x²-4x-7=0

3x²+3x-7x-7=0
3x(x+1)-7(x+1)=0
(3x-7)(x+1)=0
thus the roots are
x=-1 or x=3/7
thus the sum of the roots will be:
-1+3/7
=-4/7

6 0

3 years ago

What's the answer people. Please help me

Shalnov [3]

Yes it is true........

5 0

3 years ago

Read 2 more answers

A line has this equation: y = -8x + 8,

DIA [1.3K]

Parallel lines have the same slope
Y = -8x + 8
The slope will be -8
Therefore: y = -8x + b
Plug in the point
7 = -8(9) + b
7 = -72 + b, b = 79

Solution: y = -8x + 79

7 0

3 years ago

What is the opposite of -3.4? [Type your answer as a number.]

snow_lady [41]

The opposite of -3.4 would be positive 3.4

5 0

3 years ago