Answer:
point T only.
Step-by-step explanation:
for more info see the attachment.
29 is a prime number.
Factors of 29: 1 , 29
168 is a composite number, therefore you can find the prime factorization for it. Divide prime factors until what is left is a prime number. Use the tree factor. See attached picture:
Prime factorization of 168: 2, 2, 2, 3, 7
You're using inverse operation to solve this equation. Now you just have to think about it. What number plus 20 would equal the same number squared? The answer would be 5, since
5+20=5^2
25=25
The statement above is true :)
Another number that would work for the equation would be x= -4
-4+20=-4^2
16=16
The statement above is also true so your answer would be x=-4 and 5
Answer:
It's 3 x 7 pond or a 7 x 3 pond
Step-by-step explanation:
Let the rectangular pond have dimensions l x b.
ATQ, l*b=21 and 2(l+b)=20. Solving it, we get l=3 or 7 and b=7 or 3.