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liberstina [14]
3 years ago
8

Use what you know about decimals or fractions to explain why (0.2)•(0.002)=0.0004

Mathematics
1 answer:
strojnjashka [21]3 years ago
6 0

Answer:

So any time you are multiplying something, you are making "groups of"

so 3 groups of 2 = 6, 4 groups of 3 = 12

But with decimals or fractions, because they are a value less than zero, the numbers become increasingly small instead of bigger, like standard multiplication.

So for example, 1 group of 1/2 = 1/2

2 groups of 1/4 = 1/2

and so on

hope this helps!

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G G 2x+4y=12 <br>Please explain it to me ​
jek_recluse [69]

Answer:

2×4=8 + 4 = 12 y stands firm you do the y part 2 times

4 0
3 years ago
An angle measures 156° less than the measure of its supplementary angle. What is the measure of each angle?
GrogVix [38]

Answer:

12° and 168°

Step-by-step explanation:

If x is the angle, and y is the supplementary angle, then:

x + y = 180

x = y − 156

Solve the system of equations using substitution:

y − 156 + y = 180

2y = 336

y = 168

Plug back into either equation to find x:

x = 12

7 0
4 years ago
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Two sides of a triangle measure 5 inches and 9 inches. Which of the following is a measure of a possible 3rd side of the triangl
svet-max [94.6K]

Answer:

B. 5 inches

Step-by-step explanation:

This is because of the triangle inequality theorem which states "The sum of the lengths of any two sides of a triangle is greater than the length of the third side." So, since 5+9 is 14 it has to be less than 14. Also, because 5+2 is 7 and that is not greater than 9 it has to be 5 inches.

4 0
3 years ago
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I need help its a review form a few years ago i cant rember pls answer both
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Answer:

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Step-by-step explanation:

3 0
3 years ago
The vertex of this parabola is at (3,5). When the Y value is 6X value is negative one what is the coefficient of the squared ter
iren2701 [21]

We know that equation of a parabola is given by :-

y = a(x-h)² + k

Where (h,k) is the vertex of parabola and (x,y) is any point on its curve.

Given that vertex of parabola is (3,5) and one point (x,y) is (6,-1).

We can plug the given information in the equation of parabola and solve it for value of 'a' :-

-1 = a(6 - 3)² + 5

-1 = a(3)² + 5

-1 = 9a + 5

9a = -1 -5 = -6

a = \frac{-6}{9} = \frac{-2}{3}

a = \frac{-2}{3} is the final answer.

7 0
3 years ago
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