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SSSSS [86.1K]
3 years ago
13

Find each product by factoring the tens.

Mathematics
1 answer:
-Dominant- [34]3 years ago
3 0
<span>A technique for mental multiplication is called factoring the tens which relies on the fact that 10*n, for any real number n. This will make the problems easy to compute. 6 x 2 = 12 is a memory value. </span>

12  x 10  = 120

12   X 100  = 1200

Take for instance in 6 x 2, 6 x 20 and 6 x 200. Find the factors and these are the computations. We can also say: 

<span>6 x 20 = 6 x 2 x 10 = 12 x 10 = 120 
60 x 20 = 6 x 10 x 2 x 10 = 12 x 10 x 10 = 1200</span>

It must be remembered that in the commutative and associative properties of multiplication, the order of the factors does not matter when solving this kind of problem

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Draw ando label a number line beginning at 1 and ending at 2 that has been partitioned into sixth sense.
SCORPION-xisa [38]
Steps:
1. Draw a number line and put the numbers 1 and 2. (Do not put the numbers very close together)

2. Between 1 and 2 put 1/6, 2/6, 3/6, 4/6, 5,6, and 6/6. If they wanted it into seventh sense then you would do the same thing but split it into 7.

*I will send you a pic of what I mean
5 0
3 years ago
Find the difference: 28y − 16y
Hatshy [7]
28y-16y=12y
hope this helps!
4 0
3 years ago
Read 2 more answers
In the diagram the measure of angle 3 is 105 degrees which angle must also measure 105 degrees?
valentina_108 [34]

Answer: C

Step-by-step explanation:

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7 0
3 years ago
(4x+5) (3x+1) -3 (x+1)<br>​
ollegr [7]

Answer:

-36x^3 - 69x^2 - 34x - 5

Step-by-step explanation:

(4x + 5) (3x + 1) -3 (x + 1)

(4x + 5) (3x + 1) ( -3x - 1)

12x^2 + 4x + 15x +5

Combine like terms

12x^2 + 19x + 5 (-3x - 1)

-36x^3 -57x^2 - 15x^2 -5

Combine like terms

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4 0
2 years ago
Solve the equation for x, where x is a real number (5 points): <br> -5x^2 + 7x + 41 = 32
wel
Subtract 32 to both sides to the equation becomes -5x^2 + 7x + 9 = 0.

To solve this equation, we can use the quadratic formula. The quadratic formula solves equations of the form ax^2 + bx + c = 0
                   x = [ -b ± √(b^2 - 4ac) ] / (2a)
                   x = [ -7 ± √(7^2 - 4(-5)(9)) ] / ( 2(-5) )
                   x = [ -7 ± √(49 - (-180) ) ] / ( -10 )
                   x = [ -7 ± √(229) ] / ( -10)
                   x = [ -7 ± sqrt(229) ] / ( -10 )
                   x = 7/10 ± -sqrt(229)/10
The answers are 7/10 + sqrt(229)/10 and 7/10 - sqrt(229)/10.
6 0
3 years ago
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