Answer:
B
Step-by-step explanation:
The question is:
<em>What percent of time did Nik spend with clients on Thursday?
</em>
<em>a. 10%
</em>
<em>b. 70%
</em>
<em>c. 30 %
</em>
<em>d. 80%</em>
<em />
<u>Solution:</u>
c means client meetings and o means other work.
The hours are shown in the table.
We want % of time on Thursday that he spent on clients.
In Thursday:
7c and 3o
Means 7 hours with clients and 3 hours with office work.
Total time spent = 7 + 3 = 10 hours
Client time spent = 7 hours
% time spent with clients on Thursday: 7/10 = 0.7 * 100 = <u>70%</u>
<u>Answer choice B is right.</u>
Answer:
1
Use the quadratic formula
=
−
±
2
−
4
√
2
x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}
x=2a−b±b2−4ac
Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.
2
+
5
−
2
=
0
x^{2}+5x-2=0
x2+5x−2=0
=
1
a={\color{#c92786}{1}}
a=1
=
5
b={\color{#e8710a}{5}}
b=5
=
−
2
c={\color{#129eaf}{-2}}
c=−2
=
−
5
±
5
2
−
4
⋅
1
(
−
2
)
√
2
⋅
1
Step-by-step explanation:
this should help
