The area of the two triangular bases is
A = (4 mm)(6 mm) = 24 mm²
The perimeter of the triangular base is
P = 2(6.3 mm) + 4 mm = 16.6 mm
so the lateral area is
A = (16.6 mm)(8 mm) = 132.8 mm²
The total surface area is the sum of the base areas and the lateral area.
total area = 24 mm² + 132.8 mm² = 156.8 mm²
This value corresponds to selection ...
D) 156.8 mm²
Answer:
325 boys
Step-by-step explanation:
The ratio 5:7 represents 5+7=12 students. If we were to proportionalize this ratio to 780 students, we would multiply the ratio by 65/65 since 780/12=65.
Therefore, you have (5*65)/(7*65)=325/455 as your ratio. This means that there are 325 boys in the school
Radius is half of a circle
Answer:
-2 and -4
Step-by-step explanation:
The equation
Can be written as
Lets apply quadratic equation solver:
that is.
where a=1, b=6, c=8
We have
The solution is then
x= -2 and x= -4
Answer:
- The Expression will be defined if the denominator is not equal to 0 since any number divided by 0 is undefined.
- Therfore our main priority here is to check the denominator only because it's the only part that can make the expression undefined
- the expression will be defined for all real numbers (a) BUT 3+a must not equal to 0 therfore (a) can be all real numbers but must never be equal to -3
Step-by-step explanation:
- HOPE THIS HELPS!