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olga55 [171]
4 years ago
15

What is 12.375 in expanded form

Mathematics
1 answer:
CaHeK987 [17]4 years ago
7 0
<span>In the decimal number system, 12.375 = 1*10^1 + 2*10^0 + 3*10^(-1) + 7*10^(-2) + 5*10^(-3). This is equal to 10 + 2 + 0.3 +0.07 + 0.005. The powers of 10 shift left in order to count in ones, tens, hundreds, and so on. The powers of 10 shift right to count in 1/10, 1/100, 1/1000, and so on.</span>
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In a fruit punch drink, the 3 ingredients are apple juice, orange juice and cranberry juice. If
RSB [31]
The answer is 12 and 20
7 0
3 years ago
The measurement of one angle of a right triangle is 42°.
egoroff_w [7]
All right angle triangles have a 90 degree angle. 90+42=132

All triangles have angles that add up to 180 degrees 180-132=48  

90+42=132

180-132=48

<span>The missing angle is 48°</span>
4 0
3 years ago
Read 2 more answers
What is the equation of the line that passes through the point (1,3) and is perpendicular to the line 2x+3y=15?
Snezhnost [94]

Answer:

  3x -2y = -3

Step-by-step explanation:

The perpendicular line will have a slope that is the negative reciprocal of the slope of the given line. The constant in its equation will ensure the line goes through the desired point.

__

<h3>form of the equation</h3>

The equation for the given line is in standard form:

  ax +by = c . . . . . where a>0 and a, b, c are mutually prime

The equation of the perpendicular line can be written ...

  bx -ay = c' . . . . . where c' is a new constant

For a=2, b=3, the equation of the perpendicular will be ...

  3x -2y = c'

<h3>constant</h3>

The constant is chosen so the given (x, y) values satisfy the equation.

  3(1) -2(3) = c' = -3

<h3>equation</h3>

Then the equation of the perpendicular line through point (1, 3) is ...

  3x -2y = -3
_____

<em>Additional comment</em>

For the standard-form equation shown, the slope of the line is ...

  m = -a/b

The negative reciprocal slope is ...

  -1/m = -1/(-a/b) = b/a

This is the original slope equation with a and b swapped, and one of them negated.

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The graph confirms the new equation.

6 0
2 years ago
Solve and graph the following: -6 -8x &gt;-5<br><br>​
OverLord2011 [107]

Answer:

-1/8 > x

Step-by-step explanation:

Rewrite the equation to -1 > 8x, so -1/8 > x

Dot -1/8 on the number line, and everything on the left of that point( if right is positive ) is x .

8 0
3 years ago
Read 2 more answers
Help please, need help
iren2701 [21]

Answer:

Step-by-step explanation:

B) Small triangle:

height = 20 - 15 = 5

base = 1

height to base =  5 :1

Medium triangle :

height = 60 -30 = 30

base = 2

height to base =  30 :2  = 15 :1

Large triangle:

height = 120 - 60 = 60

base = 4

height to base =  60 : 4 = 15 : 1

c) The ratios are same. This is true because wage and working hours are in direct proportion.

E) Take any two points. (1 , 15) & (2 , 30). Find the slope.

Slope = Change in y ÷ change in x

 m = (30-15) ÷ (2 -1) = 15/1 = 15

y -y1 = m(x -x1)

y - 15 = 15(x - 1)

y - 15 = 15x - 15

y = 15x - 15 + 15

y = 15x

6 0
3 years ago
Read 2 more answers
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