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3 years ago

Please help me with this one.

Mathematics

1 answer:

Degger [83]3 years ago

5 0

Answer:

2x^2 -x +1 = 0

Step-by-step explanation:

For roots α and β, the original equation can be factored as ...

f(x) = 2(x -α)(x -β)

If we add 1 to each of those roots, the factors become ...

g(x) = 2(x -(α+1))(x -(β+1))

This can be rearranged to be ...

g(x) = 2((x -1) -α)((x -1) -β)

That is, we can get the desired equation by replacing x with x-1, effectively shifting the function right one unit.

2(x -1)² +3(x -1) +2 = 0

2x^2 -x +1 = 0

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Write an expression using multiplication and addition with the sum of 16

Rudiy27

There are many answers for this and this is one of them:
Y = 4(3 + 1)
Y = 16

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2 years ago

Read 2 more answers

The local zoo is filling two water tanks for the elephant exhibit. One water tank contains 30 gal of water and is filled at a co

kakasveta [241]

You first have to set up the two equations. Y is equal to the total number of gallons in a tank and x is equal to the number of hours the tanks are filling.

Since the two equations both equal y I can make them equal each other. I then solved for x as you see and got -4.

Once I found my x value I now needed to find my y. You only needed to chose one equation to solve for y, so I decided to do the first one. I plugged in -4 where my x value currently was and solved for y. I got 2.

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3 years ago

Write an algebraic expression that has three terms. two of the terms should be variable terms, and one of the terms should be th

artcher [175]

The height of a tree is 10
10
meters long and it grows 1
1
cm in a year.
Then its height after one year = 10
10
meters 1
1
cm
Its height after 3
3
years = 10
10
meters 3
3
cm
Its height after 6
6
years = 10
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meters 6
6
cm
Its height after x
x
years = 10
10
meters x
x
cm

Where x
x
represents an unknown number. From the last line, we can find height of the tree after a certain number of years by taking x
x
equal to that number. For example, we simply let x=15
x
=
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, 25
25
and 55
55
. Thus, the value of x
x
depends on our choice. We can give x
x
any value or number we want. In other words, the value of x
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Read more: http://www.emathzone.com/tutorials/basic-algebra/algebraic-expression.html#ixzz4fDkFcbpZ

3 0

3 years ago

.......…............

Nookie1986 [14]

Answer:

$\frac{7}{8} \div \frac{1}{2} = \frac{7}{4}$

Step-by-step explanation:

Here we are given four equations and we have to find the equation that gives the number of half inches that are in $\frac{7}{8}$ inches.

To find how many half inches i.e. $\frac{1}{2}$ inches are there in $\frac{7}{8}$ inches we have to divide $\frac{7}{8}$ by $\frac{1}{2}$ .

So, the equation that will give the result is $\frac{7}{8} \div \frac{1}{2} = \frac{7}{8} \times \frac{2}{1} = \frac{7}{4}$ (Answer)

6 0

2 years ago

If a gardener fences in the total rectangular area shown in the illustration instead of just the square area, he will need twice

Norma-Jean [14]

Answer:

He needs 5x+56 ft

Step-by-step explanation:

To find how much of fencing he needs , we find the perimeter of the given figure

All sides are equal in a square

To find perimeter of the square we add all the sides

4 sides we have for the square

one side is x, so perimeter of square = x+x+x+x= 4x

Now we find perimeter of rectangle

Opposite sides of rectangle are equal

Here for rectangle we consider only three sides

because fourth side is common for rectangle and square

So perimeter of the rectangle (with 3 sides) = 28 +x+ 28 = 56+x

Total fencing = perimeter of square + perimeter of rectangle

4x + 56 + x= 5x+56

5 0

2 years ago

Please help me with this one.​

Please help me with this one.