Answer:
B. ![33.7 mm; 54mm^2](https://tex.z-dn.net/?f=33.7%20mm%3B%2054mm%5E2)
Step-by-step explanation:
<em><u>To find the perimeter, use the formula:</u></em>
P = a + b + c
P = 12 + 12 + 9.7
P = 33.7
<em><u>To find area, use the formula:</u></em>
A = ![\frac{1}{2} bh](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20bh)
A = ![\frac{1}{2} (12)(9)](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20%2812%29%289%29)
A = ![\frac{1}{2} (108)](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20%28108%29)
A = 54
Answer:
3/3 is equivilant to 1.
Multiplying 6/4 by 1, would be 6/4. Also, multiplying 6/4 by 3/3 would be 18/12, which could be simplified to 6/4.
Hope this helps!
1.36*10^7
where the 36 repeats so 36363636363636... and so on
So hmmm check the picture below
in an isosceles triangle, two sides are equal, and thus the angles those twin legs make, are also twin angles
let's say the angle made is "a", so all internal angles will be 64 + a + a = 180
or 64 + 2a = 180
thus 2a = 180 - 64 => 2a = 116, thus a = 116/2
Answer:
29.5+/-1.11
= ( 28.39, 30.61)
Therefore, the 90% confidence interval (a,b) =( 28.39, 30.61)
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
x+/-zr/√n
Given that;
Mean x = 29.5
Standard deviation r = 5.2
Number of samples n = 59
Confidence interval = 90%
z-value (at 90% confidence) = 1.645
Substituting the values we have;
29.5+/-1.645(5.2/√59)
29.5+/-1.645(0.676982337100)
29.5+/-1.113635944529
29.5+/-1.11
= ( 28.39, 30.61)
Therefore, the 90% confidence interval (a,b) =( 28.39, 30.61)