The answer is -4 + 7. Because its subtracting 4 to zero which makes it -4. And then its adding 7 so the answer is -4+7
Answering pretty sure yes
Step-by-step explanation:
Answer:
The answer is b = 6
Step-by-step explanation:
Area of a triangle= 1/2 × b × h
A = 21, h = 7, b = ?
21 = 1/2 × b × 7 (multiplying through)
21 = 7b/2
Cross multiply
2 × 21 = 7b
42 = 7b
b = 42/7
b = 6
the second slide is A. 22
and the last one is x=81 z=99 and y=68
hope this helps
Answer:
Step-by-step explanation:
Change into improper fraction
