Answer:
a = 49°
Explanation:
You use the rule ‘exterior angle of a triangle’ which states that the exterior angle is equal to the sum of the two opposite interior angles.
To put it mathematically:
a + a = a + 49° (Ext angles of triangle)
a = a - a + 49°
a = 49°
The event of the machine working is 
, and since the components operate independently, we have
so just multiply the given probabilities together,
That is a 90 degrees angle
The mirror cost when the cpi is 211, to the nearest cent is $187.69
<h3>Ratio and proportion</h3>
Fraction is expressed as a ratio of two integers. For instance a//b is a fraction where a and b are integers.
From the given question, a full-length mirror cost $144.99 when the cpi was 163, hence;
$144.99 = 163 cpi
In order to determine the mirror cost when the cpi is 211, we will write;
x = 211 cpi
Find the ratio;
144.99/x = 163/211
163x = 30592.89
x = 30592.89/163
x = 187.69
Hence the mirror cost when the cpi is 211, to the nearest cent is $187.69
Learn more on ratio and proportion here: brainly.com/question/12024093
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Answer:
m=0
Step-by-step explanation:
the slope is 0
