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Pie
2 years ago
11

After Hillary realized her clock was running 30 minutes fast, she used a knob on the clock to turn the minute hand back 30 minut

es. Which describes the rotation of the minute hand?
180 degrees clockwise rotation
90 degrees clockwise rotation
180 degrees counterclockwise rotation
90 degrees counterclockwise rotation
Mathematics
2 answers:
RUDIKE [14]2 years ago
4 0
I think that’s it’s 90
Svetlanka [38]2 years ago
3 0

30 minutes is half the clock face, 180 degrees.

Forward is clockwise on a clock so backwards is counterclockwise.

180 degrees counterclockwise rotation


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Andrea has a yard shaped like parallelogram ABCD. The garden area, parallelogram EFGB, has an area of 105 ft2004-05-02-04-00_fil
Lynna [10]

The area of a parallelogram is simply calculated using the formula:

A = b * h

Where,

b = length of the base = 45 ft

h = height which is perpendicular to the base = 21 ft

Using the formula, we calculate the total area of the yard.

A = b* h

A = 45 ft * 21 ft

A = 945 ft^2

Now we don’t want to sod the Garden area for the most obvious reason. The garden has an Area of 105 ft^2, we subtract this to the total area giving us,

Area to sod = 945 ft^2 – 105ft^2

<span>Area to sod = 840 ft^2</span>

5 0
2 years ago
For which values of k does the system of linear equations have zero, one, or an infinite number of solutions? [Note: not all thr
anastassius [24]

Answer:

For k = 36, there is 0 solutions

For other values of k, there is 1

We never got infinite solutions on the system.

Step-by-step explanation:

We have 2 unknowns and 2 equations:

E1     8x1 + x2 = 18

E2    k*22 x1 + 9 x2 = 18

If we multiply the E1 by 9 we obtain

E3     72 x1 + 9x2 = 162

if we substract E3 with E2 we obtain

(72- 2k) x1 = 144

Thus,

x1 = 144/ (72-2k)

That is, if 72-2k = 0, otherwise there is no solution. And 72-2k = 0 when k = 72/2 = 36.

If k is not 36, then

x1 = 144/(72-2k) and we can replace this value to obtain x2 by using E1

x2 = 18-8x1 = 18- 8 * (144/72-2k)

Which is a specific number that depends only on k. Thus,

for k = 36, there is 0 solutions

for other values of k, there is unique solution.

4 0
2 years ago
Consider the diagram.<br> What is QS?<br> 2 units<br> 5 units<br> 17 units<br> 33 units
blagie [28]

Answer:

The answer on ed is 17 units I took the test.

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
6051 was rounded to the nearest one. What is the lower bound?
shusha [124]

Answer:

6050

Step-by-step explanation:

3 0
2 years ago
The double number line shows that 444 bottles of water cost 101010 dollars at a music festival. Based on the ratio shown in the
MrRissso [65]

Answer:

Please see the attachment for double number line.

Explanation:

We are given cost of 4 water bottles is $10

We can write ,

Cost of 4 bottles = $10

Cost of 1 bottle = $2.5

Cost of 2 bottles =$5

Cost of 3 bottles = 3\times 2.5 = $7.5

Cost of n bottles = $2.5n

Now we draw the double number line.

Bottom line(Line 1)  will take as number of bottles:  

1   2   3   4   5   6  

Above line (Line 2) will show the cost of corresponding number of bottles:

2.5  5  7.5  10  12.5  15  


 


4 0
2 years ago
Read 2 more answers
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