So, you take 510/5 to get MPH so, his average speed is 102MPH. Now, I don't know what US State this guy is in to be going 102 miles per hour, but he is making good time! Hope this helps! Caistewart
Answer:
x = 23
Step-by-step explanation:
Hello There!
We are given that AC and BD are diagonals of a rectangle
If you didn't know diagonals are congruent
So given that BC = 56 and AC = 2x + 10 we can use this equation to solve for x
56 = 2x + 10
now we solve for x
step 1 subtract 10 from each side
56 - 10 = 46
10 - 10 cancels out
now we have 46 = 2x
step 2 divide each side by 2
46/2=23
2x/2=x
we're left with x = 23
Answer:
a) 
b) The should sample at least 293 small claims.
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so , which means that the answer of question a is z = 1.645.
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
(b) If the group wants their estimate to have a maximum error of $12, how many small claims should they sample?
They should sample at least n small claims, in which n is found when
. So
The should sample at least 293 small claims.
Answer:
Step-by-step explanation:
These are logically difficult, so it makes sense to me you're asking about this.
so A = 1/2 (big arc - small arc)
and 360 = big arc + small arc
then
360 - small arc = big arc
so rewrite the top equation
A = 1/2(360-small arc -small arc)
63 = 1/2( 360 - 2 small arc)
2* 63 = 360 - 2 small arc
126 = 360 - 2 small arc
2 small arc = 360-126
2small arc = 234
small arc = 234/2
small arc = 117
x = 117°
