Answer:
z = 10
Step-by-step explanation:
Distribute 2 to the terms in the parentheses:
2(2z + 5) = 50
4z + 10 = 50
Subtract 10 from both sides
4z = 40
Divide each side by 4
z = 10
So, the answer is z = 10
Answer:
nearest tenth= 5.4
Step-by-step explanation:
55 ÷ 10.1= 5.44554455446.
Step-by-step explanation:
57,500,000,000 is in standard form
Standard form is a+bi where a and b are real numbers
remeber that i²=-1
ok

we got to get the i out of the denomenator
remember the differnce of 2 perfect squares where (a-b)(a+b)=a²-b²
so multiply the whole thing by

we get


in standard form, it is