Tamara says she used the GCF to factor the expression 21x + 56xy as 7(3x + 8xy). Is she correct? Explain.
1 answer:
Answer:
Tamara incorrectly factored the whole expression.
Step-by-step explanation:
Note that
21x=3·7 ·x ; 56xy=2·2·2·7 ·x ·y. Mark in bold all common factors, then GCF(21x,56xy)=7 ·x =7x.
Thus,
21x+56xy=7x(3+8y).
Hence, Tamara correctly found the GCF of numbers 21 and 56, but incorrectly factored the whole expression.
You might be interested in
It's the lasts graph it intersects at 0,-3
Answer:
well now he has one of the things that he wanted and he has some money in the bank to build up interest or to have for an emergency. it was also good because it was the cheaper of the two items.
have a good day!
Answer:
1) 188.4 in³
2)306 in³
3)210in³
Step-by-step explanation:
1) r = 5in h = 12in
5 * 12 * 3.14
2) L = 3 W = 8.5 H = 12
3 * 8.5 * 12
3) ( B = 5 W = 7 H = 12)
.5(5 * 7 * 12)
Answer:
It's 1/6, hope this helps!
-1 1, -2 2, 3 -3. Is this what you wanted? If no tell me in comments and maybe a can help fix.