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Vesnalui [34]
2 years ago
12

Write about which method you prefer to use to multiply two 2-digit numbers-regrouping,partial products,or breaking apart a model

.Explain why.
Mathematics
2 answers:
Salsk061 [2.6K]2 years ago
7 0

Answer with explanation:

If we have to multiply ,two two digit numbers

   The three methods which is given here is:

1.Regrouping :

→→45 × 36

= 170

105

--------

1 2 2 0

2.Partial Products

→34 × 23

 =    20   +    3

30|600  +    90|

+

4 |80     +     12|

=782

3. Breaking apart

→→ 43 × 32

=(40+3)×(30+2)

=40×30+3×30+40×2+3×2

=1200+90+80+6

=1376

In Breaking Apart Model, we break the two digit number such that, 0 is at unit digit and then use the Identity

⇒(x+a)×(x+b)=x²+(a+b)x+ab

In this model we don't have to make table.So, this method is Preferred.

lianna [129]2 years ago
5 0
I prefer partial products because we can apply the methods we used from writing two digit times one digit problems and apply them here. It is much more simple than the other methods.
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Step-by-step explanation:

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3 0
2 years ago
What equation would help determine the cost of 4 markers if five markers are $6.55 and remember I am asking for the equation not
harkovskaia [24]

Answer:

4($6.55)/5

Step-by-step explanation:

If five markers cost $6.55

then equate or cross multiply inorder to get the cost of 4 markers.

4($6.55)/5

7 0
2 years ago
Fill in the blanks below.
Crank
The slope for the first one would be:
y2-y1/x2-x1, so replace those with the coordinates and you'll get:
-3-1/-7-(-7) => -4/0 so I guess the slope is zero

the slope for the second one would be:
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Check to make sure, though!
4 0
3 years ago
Read 2 more answers
Complete factorization f(x)=x^4-x^3-5x^2-x-6
Marianna [84]

The solution to the above  factorization problem is given as f′(x)=4x³−3x²−10x−1. See steps below.

<h3>What are the steps to the above answer?</h3>

Step 1 - Take the derivative of both sides

f′(x)=d/dx​​(x^4−x^3−5x^2−x−6)

Step 2 - Use differentiation rule d/dx​(f(x)±g(x))=d/dx​(f(x))±d/dx​(g(x))

f′(x)=d/dx​​(x4)−d/dx​​(x^3)−d/dx​​(5x^2)−d/dx​​(x)−d/dx​​(6)

f′(x)=4x^3−d/dx​​(x3)−d/dx​​(5x^2)−d/dx​​(x)−d/dx​​(6)

f′(x)=4x^3−3x2−d/dx​​(5x^2)−d/dx​​(x)−d/dx​​(6)

f′(x)=4x^3−3x^2−10x−d/dx​​(x)−d/dx​​(6)

f′(x)=4x^3−3x^2−10x−1−dxd​(6)

f′(x)=4x^3−3x^2−10x−1−0

Learn more about factorization:
brainly.com/question/25829061
#SPJ1

5 0
2 years ago
Guys plz help me answer this!!!!
Nutka1998 [239]

Answer:

<u>a= -4</u>

Step-by-step explanation:

subtract 4a from both sides

add 15 to both sides

divide both sides by -3

(order of operations)

3 0
2 years ago
Read 2 more answers
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