Answer:
a.9
b. ay=9
xy= 18
Step-by-step explanation:
a. xa=ay (since a is a midpoint that means xa and ay are the same amount).
3x=5x-6
subtract 5x from both sides
-2x=-6
inverse operations, so divide both sides by -2. (a negative divided by a negative is a positive)
x=3
so xa=3x. fill in x
3*3 is 9
b. fill in the x
5*3-6
5 times 3 is 15.
15-6=9
(also xa is 9 and they are congruent so both are 9)
ay= 9
add both sides to find xy
9+9=18
xy=18
Answer:
1. Ice melts under heat and temperatures above freezing point.
2. If I leave my ice underneath the sun, then it will melt.
3. I would test it by putting ice into a bowl and leave it outside for five minutes.
4. After five minutes, I would go outside and see what percentage of the ice has melted.
5. Ice melts underneath high temperatures and the higher the temperature, the faster the ice melts.
Step-by-step explanation:
The answer is that it cannot be modeled with a rectangle.
Answer:
y = 4x + 1
Step-by-step explanation:
Given the equation y = 4x - 2, we need to find the equation parallel to this line. Note that for two equations to be parallel to each other, the must have the same slope
Standard form of an equation is y = mx + b
Compare;
mx = 4x
m = 4
Since the slope of the given equation is 4, the required equation must also have a slope of 4
Since we are not given an option, we can assume any equation with a slope of 4
y = 4x + 1 will be parallel to the given equation since they both have the same slope
<em>Note that the equation can be different so far they have the slope of 4</em>
Answer:
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
is the estimate
z is the zscore that has a pvalue of 
, also called the critical value.
The standard error is:
90% confidence level critical value
So 
, z is the value of Z that has a pvalue of 
, so 
.
Estimate:
72 petty theft cases and finds 45 of these have gone unsolved.
So 
Standard error:
Answer:
