Answer:
A and C
Step-by-step explanation:
The shapes that have 4 congruent sides are squares and rhombi.
<h2>
Answer with explanation:</h2>
Claim : The population variance of these resistors "must not exceed 4" to conform to industry standards.
Then , the set of the hypothesis will be :-
The critical value of chi-square is 16.919 and the observed value is 15.247 .
We know that if the chi-square observed value is less than the chi-square critical value, then we fail to reject the null hypothesis.
Since 15.247<16.919
So , we conclude that we do not reject the null hypothesis.
Hence, we have enough evidence to support the claim that the population variance of these resistors "must not exceed 4" to conform to industry standards.
Answer:
3
Step-by-step explanation:
3x+2y=12
5x-7=y
3x+2(5x-7)=12
3x+10x-14=12
13x=12+14
13x=26
x=2
3(2)+2y=12
6+2y=12
2y=12-6
y=6/2
y=3
Answer:
A) 6,3
Why?
The midpoint, which is somewhat self-explanatory thanks to its name, is a point in the center of a line.
To answer this question properly, you need to analyze the line and assess the situation.
How did it go from x = 2 to x = 10? Let's see, if we count by two's across the line, you'll notice it makes more sense. So now we know that every square goes up by two. x = 6 is the exact center of the line.
I hope this wasn't confusing, it's tough to explain it!