Answer:
True
Step-by-step explanation:
In this question, we are asked to evaluate the validity of a claim whether true or false.
Firstly, let’s understand what is actually meant by prevalence. Prevalence of a disease actually refers to the proportion of individuals who tested positive to the disease. It is simply the proportion of the individuals in a population that has the disease in question.
In this question, we initially had 50 out of the 500, with 40 who didn’t show symptoms at initial testing showed it later.
This 40 is the number of new cases and is a different term entirely. It is referred to as incidence.
Now to calculate the incidence rate, we apply the following;
Mathematically prevalence can be calculated as number of cases/number of population * 100% = 50/500 * 100% = 10%
This makes the claim correct
For cases like these, we need to find the base then multiply it by the height. Let’s separate the triangle and the rectangle of the base
Triangle:
1/2(6*9) = 27
Rectangle:
5 * 9 = 45
Total base:
45+ 27 = 72
Now for the area:
72 * 12 = 864 m^3
864 m^3 would be the volume.
Answer:
see explanation
Step-by-step explanation:
given
, x ≠ - 1
The x ≠ - 1 means that x cannot take the value of - 1 as this would make the denominator equal to zero which would make the fraction undefined.
Factor the numerator/ denominator
8x² - 8 = 8(x² - 1) ← factor out 8 from both terms
x² - 1 ← is a difference of squares, hence
8x² - 8 = 8(x - 1)(x + 1)
4x + 4 = 4(x + 1) ← factor out 4 from both terms
Thus the fraction now simplifies to
Cancel the 8 and 4 by 4 and cancel the factor (x + 1), leaving
= 2(x - 1) = 2x - 2 ← in the form ax + b
Answer:
d
Step-by-step explanation:
Answer:
number
2.A
3.1/1
4.A
5.up right side ididnt see
6.5 right
7.place the positive for and walk in to the left side and count eleven start to 4