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2 years ago

A recipe for nut bread calls for 2 cup of walnuts and 1 cup of pecans. What is

Mathematics

1 answer:

White raven [17]2 years ago

6 0

The answer 3 cups, as 1+2=3. So in total there will be 3 cups of nuts

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Figure ABCD is a square. Prove BD ≅ AC. Statements Reasons 1. ABCD is a square 1. given 2. ∠DAB, ∠ABC, ∠BCD, and ∠CDA are right

FromTheMoon [43]

A. all sides are congruent. :)

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2 years ago

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How to find equation of line passing through the points (x,y)

DochEvi [55]

First you must acknowledge that you are dealing with a line therefore you must write linear equation or linear function in this case.

Linear function has a form of,

$y=mx+n$

Then calculate the slope m using the coordinates of two points. Let say A(x1, y1) and B(x2, y2),

$m=\dfrac{\Delta{y}}{\Delta{x}}=\dfrac{y_2-y_1}{x_2-x_1}$

Now pick a point either A or B and insert coordinates of either one of them in the linear equation also insert the slope you just calculated, I will pick point A.

$y_1=mx_1+n$

From here you solve the equation for n,

$y_1=mx_1+n\Longrightarrow n=y_1-mx_1$

So you have slope m and variable n therefore you can write down the equation of the line,

$f(x)=m_{slope}x+n_{variable}$

Hope this helps.

r3t40

3 0

2 years ago

4 is subtracted from r

SIZIF [17.4K]

Answer:

Algebraic expression ;

$r-4$

Step-by-step explanation:

4 is subtracted from r means the same as r decreased by 4

Subtracted = -

$r - 4$

3 0

2 years ago

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Find the vertex of this parabola: y=-4x^2+8x-12

tatiyna

The vertex of the parabola is the highest or lowest point of the graph.

y=-4x^2+8x-12 = -4 (x^2 -2x +3)

Lets work with this now: x^2 -2x +3

x^2 -2x +3 -> what is the closeset perfect square?
x^2 -2x +1 = (x-1)^2
So
x^2 -2x +3 = (x-1)^2 +2

Replacing to original
y=-4x^2+8x-12 = -4 (x^2 -2x +3) = -4 ((x-1)^2 +2) = -4 (x-1)^2 - 8

The min or max point is where the squared part = 0
So when x=1 , y= -4*0-8=-8

This will be the max of the parabola as there is - for the highest factor (-4x^2)

The max: x=1, y= -8

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2 years ago

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2918+49 Which numbers should be used? The estimated quotient is?

NNADVOKAT [17]

Answer: Use all numbers to add.

2918+49=2967

Estimated.... 2918+49 ≈ 3050

Hope this helps you out.

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2 years ago

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