Does reversing the order of digits of a 2 digit prime number always result in a prime number
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for example:
29 if you switch the digits it becomes 92 and 92 is composite because 2x46=92
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A) MRD and E) DMR are all valid triangle names for the triangle in the picture
a) triangle MRD
e) triangle DMR
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The value of this place is 1, a whole number, - 1.000
The value of this place is one tenth or - 0.100
The value of this place is one hundredth or - 0.010
The value of this place is one thousandth or - 0.001
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x- our basic angle
2*x- second angle
3*x- third angle
so:
x+2x+3x=180
6x=180
x=180/6
x=30 degrees
second angle is 60, and third is 90
Checking
30+60+90=180
Final answer:
The first angle measures 30 degrees, the second angle measures 60 degrees, and the third angle measures 90 degrees.
Explanation:
Let's first represent the first angle as x degrees.
According to the problem statement, the second angle is twice as large as the first. Therefore, the second angle is 2x degrees.
The third angle is three times as large as the first angle. Therefore, the third angle is 3x degrees.
Since the sum of angles in a triangle is always 180 degrees, we can set up the equation: x + 2x + 3x = 180.
Combining like terms, we get 6x = 180.
Dividing both sides of the equation by 6, we get x = 30.
Therefore, the first angle measures 30 degrees, the second angle measures 60 degrees, and the third angle measures 90 degrees.
Learn more about Angle measurements in a triangle here:
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Answer:
9 M
Step-by-step explanation:
a^2+b^2=c^2
12^2+b^2=15^2
144+b^2=225
-144 -144
b^2=81
b=sqrt of 81
b=9