Answer:
94
Step-by-step explanation:
The triangle is split into two similar triangles. They have the same shape but not the same size. To solve, write a proportion to find KY.
Cross multiply to solve for KY.
95.2(KY) = 168(34)
95.2KY = 5,712
KY = 60
Add KY to 34 to find x.
60 + 34 = 94.
Answer:
B: 81π inches
Step-by-step explanation:
The formula for the circumference of a circle is C = πd and the formula for the area of a circle is A = πr²
- The formula for the circumference of a circle can also be written as C = 2πr since the diameter is equal to double the radius (d = 2r)
- So we need to solve for r since that is the variable we are missing in order to solve for the area
Plugging in our known values to the circumference formula we have:
- 18π = 2πr
- Then dividing both sides by 2π we have 9 = r
Now that we have solved for the radius, we can plug in this value to the area formula:
after 8 hours there are 995 bacteria cells left
let y be the amount after 8 hours
the multiplying factor is 100 - 5 = 95 % = 0.95
y = 1500 × 
= 995
11/12
simplificado
de nada
