Answer:
4 1/5
Step-by-step explanation:
(2*3 is the same as 2x3 in multiplication)
Since in a week there are 7 days, you multiply the number of days to the distance walked per day. Which is 7*(3/5), or (3/5)*7
So (3/5)*7=4 1/5 or 4.2
(3/5)*7 equals
(3/5)+(3/5)+(3/5)+(3/5)+(3/5)+(3/5)+(3/5)=(21/5)
There are four 5's in 21, so it is 4 wholes.
4 an the remaining 1 over 5
=4 1/5
No. For two lines to be perpendicular their slope must be the negative reciprocals of one another, mathematically:
m1*m2=-1
So if the slope of one line is negative, the line perpendicular to this must be positive by definition.
The surface area of the sphere:
A = 4 r² π
1 ) r = 60 m;
A = 4 · 60² π = 4 · 3600 π = 14,400 π m²
2 ) Diameter of 14 cm:
r = 14 cm / 2 = 7 cm
A = 4 · 7² π = 4 · 49 π = 196 π cm²
We don’t know the value for the population, so we must estimate the standard error using the data from the sample. Standard error = sqrt(p(1 - p)/n), where p is the proportion of yes and n is sample size. Margin of error = z* * standard error, z* = 1.64, so margin of error is 0.053. A sample size less than 10% of the population is needed to make an inference, thus, d is the correct answer. If this was confusing, please don’t hesitate to comment, hope this helps!
