Answer:
First awnser
Step-by-step explanation:
4x(7-v2)+v7(7-v2)
28-4v2+7v7-v14
Answer:
i guess your new grade would be 88%. If you past 100%, you might pass for that grade. Even if you get a 90%, you'll still be able to pass.
Step-by-step explanation:
Answer:
{BBB, BBW, BWB, BWW, WWW, WWB, WBW, WBB}
<em>This is the correct answer! I just took the test! Good luck!!!</em>
Answer:
C and B
Step-by-step explanation:
(6)
×
← cancel 3x - 7y on numerator and denominator
=
×
=
=
→ C
(7)
÷ 
Factorise the denominators of both fractions
x² - 9 = x² - 3² = (x - 3)(x + 3) ← difference of squares
4x - 12 ← factor out 4 from each term
= 4(x - 3)
Then rewrite as
÷
← cancel 8 and 4 by 4
=
÷ 
• leave first fraction, change ÷ to × , turn second fraction ' upside down'
=
×
← cancel x - 3 on numerator and denominator
=
×
← cancel 2 and 6 on numerator and denominator
=
→ B