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2 years ago

Evaluate f(x) at x =-3/4 f(x) = 2 - 6x - 4x^2

Mathematics

1 answer:

Tresset [83]2 years ago

7 0

Answer:

4.25 is the final answer!!!

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Three vertices of parallelogram DEFG are D(-4,-2), E(-3,1) and F(3, 3). Find the coordinates of G.

Olin [163]

Answer:

Coordinates of G = $(2,0)$

Step-by-step explanation:

Given: Three vertices of parallelogram DEFG are D(-4,-2), E(-3,1) and F(3, 3).

To find: coordinates of G

Solution:

Midpoints of a side joining points $(a,b),\,(c,d)$ are given by $(\frac{a+c}{2},\frac{b+d}{2})$

Diagonals of a parallelogram bisect each other.

So,

Midpoint of DF = Midpoint of EG

Midpoint of DF = $(\frac{-4+3}{2},\frac{-2+3}{2})=(\frac{-1}{2},\frac{1}{2})$

Midpoint of EG = $(\frac{-3+x}{2},\frac{1+y}{2})$

Let coordinates of G be $(x,y)$

Therefore,

$(\frac{-1}{2},\frac{1}{2}) =(\frac{-3+x}{2},\frac{1+y}{2})\\\\\frac{-1}{2}=\frac{-3+x}{2},\,\frac{1}{2}=\frac{1+y}{2}\\\\-1=-3+x,\,1=1+y\\\\x=-1+3,\,y=1-1\\x=2,\,y=0$

So,

Coordinates of G = $(2,0)$

8 0

2 years ago

(a+b):a = 7:4 Find a:b

harina [27]

Answer:

4:3

Step-by-step explanation:

a+b = 7 units

a = 4 units

b = 7 - 4 units

Thus,

a:b

-----

4:3

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I think of a number.

Gennadij [26K]

itt is d because

dat is not the wrong anser lol

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1 year ago

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