The arc length is 0.785 units and the diagonal is √2 units
<h3>How to determine the lengths?</h3>
The question requires that we determine the lengths of the blue line and the arc
The blue line is the diagonal of the square, whose side length (l) is
l = 1
The diagonal is then calculated as:
This gives
The diagonal divides the vertex of the square into 45 degrees a piece, and the diagonal represents the radius of the arc
This means that:
The arc length is:
So, we have:
This gives
Divide
l = 0.785
Hence, the arc length is 0.785 units and the diagonal is √2 units
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The answer is c. 10y and -9y
Answer: See explanation
Step-by-step explanation:
Your question isn't complete but let's help out by giving some values to the question.
Let's say there are 230 students in a school. This number is 15% more than it was last year. Calculate the number of students last year.
Let the number of students last year be x.
Since there's a 15% increase, this implies that (100% + 15%) = 115% of x equals to 230. This will be:
115% of x = 230
115% × x = 230
115/100 × x = 230
1.15x = 230
x = 230/1.15
x = 200
There were 200 students last year.
Just assign the missing values and use the above method and you'll get your answer.
Answer:
y=-1/2x
Step-by-step explanation:
Answer:
36 degrees
Step-by-step explanation:
A+B=90
A-B=18
add these two equations:
2A = 108
A=54
B=36