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BabaBlast [244]
4 years ago
7

How does the associative property of multiplication help you to calculate products mentally?

Mathematics
1 answer:
notka56 [123]4 years ago
6 0
For example, evaluate 17*5*20:
Method 1: (17*5)*20 = 85*20 = 1,700.
Method 2: 17*(5*20) = 17*100 = 1,700.
Notice that by first multiplying 5*20 to get 100, the calculation
is easy to do in your head.
You can also use the commutative property to rearrange a question:
5*21*4 = 5*4*21 = 20*21 = 420
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g100num [7]

Answer:

A matrix is a rectangular table of numbersVectors and matrices are arrays of numbers. The algebra for symbolic operations on them is different from the algebra for operations on scalars, or single numbers. ... It can be said that the matrix algebra notation is shorthand for the corresponding scalar longhand.

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3 years ago
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I NEED HELP ASAP!!
Oduvanchick [21]

Answer:

Step-by-step explanation:

women=85+32=117

men=70+51=121

total=117+121=238

a. P(woman)=117/238

b. P(woman or summer)=p(woman)+P(summer )-P(woman and summer)

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4 years ago
2^3 • 3 evaluate the expression plz help me
Scilla [17]

Answer:

24

Step-by-step explanation:

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3 years ago
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Kyle has 125 marbles. Fifty of these marbles are red and the reat are other colors. What is the ratio of the nunber of red marbl
Vedmedyk [2.9K]

Answer:

The required simplest form is: \frac{2}{5}

Step-by-step explanation:

We have been given Kyle has 125 marbles.

And 50 out of total 125 are red and rest of them are other colours

that means other colour marble are 125-50=75

we need to find ratio of the number of red marbles to the total of marbles  

The rat io is: \frac{50}{125}=\frac{2}{5}

The required simplest form is: \frac{2}{5}

4 0
3 years ago
Plot the line for the equation on the graph. y-5=3/2(x-2)?
never [62]

Answer:

See the attachment

Step-by-step explanation:

The equation is in point-slope form, so you can read from the equation that one of the points on the graph is (2, 5).

The slope of 3/2 tells you that going 2 units to the right (to x=4) will move the point up 3 units (to y=8).

You can draw your line through these two points: (2, 5) and (4, 8).

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