Answer:
1.yes, 2.no, 3.yes, 4.no, 9.yes, 5.no, 6.no, 7.yes, 8.no, and finally 10.no.
hope this helps!
Step-by-step explanation:
Formula for the Pythagorean theroem= a²+b²=c²
1. 15²+20²=25²
2. 8²+14²=19² ×
3. 15²+36²=39²
4. 11²+13²=22² ×
9. 14²+48²=50²
5. 16²+30²=39² ×
6. 17²+26²=33² ×
7. 18²+24²=30²
8. 12²+13²=22² ×
10. 16²+22²=30² ×
I tweaked with #6 because the hypotenuse is usually the biggest number.
So 1 nickle=5 cents
1 quarter=25 sents
q=number of quarters
n=number of nickles so
total is
q+n=20
5n+25q=400 (since 100 cents=1 dollar and 4 dollares=400 cents)
SO THE 2 EQUATIONS WOULD BE
n+q=20
5n+25q=400
so q+n=20
subtract q from both sides
n=20-q
subsitute 20-q for n in the second equation
5(20-q)+25q=400
distribute
100-5q+25q=400
add like terms
100+20q=400
subtract 100 from both sides
20q=300
divide both sides by 20
q=15
thhere are 15 quarters
subsitute 15 for q in first equation
15+n=20
subtract 15 from both sides
n=5
5 nickles
15 quarters
According to the situation described, the appropriate set of hypotheses for her significance test is given by:
.
.
<h3>What are the hypothesis tested?</h3>
At the null hypothesis, it is tested if the proportion is still of 42%, that is:
.
At the alternative hypothesis, it is tested if the proportion is now lower, that is:
.
Hence, the the appropriate set of hypotheses for her significance test is given by:
.
.
More can be learned about an hypothesis test at brainly.com/question/26454209
I want to say the answer is A i caulated it and i end up getting 17
