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Brums [2.3K]
3 years ago
12

4x^2+bx+9=0 has no real number solutions what must be true about b​

Mathematics
1 answer:
timama [110]3 years ago
4 0

b^2-4ac<0 b^2-144<0 (b-12)(b+12)<0

-12<b<12

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85% of the students in Yvan’s school walk to school. If 816 students walk to school, how many students are in the school?
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<h2>Hello There today we will solve your problem</h2>

\huge\red{\mid{\underline{\overline{\textbf{QUESTION}}}\mid}}

<em>85% of the students in Yvan’s school walk to school. If 816 students walk to school, how many students are in the school?</em>

<em />

<em>Response-</em>

Since we are using percents we can make an equation out of this question

\frac{85}{100}=\frac{816}{x}

\frac{85}{100} is the way we write percents in math as a fraction

and \frac{816}{x} is the part and whole you gave us

\frac{85}{100}=\frac{816}{x} cross multiply

85x=81600\\divide\\x=960students are in the school

\huge\blue{\mid{\fbox{\tt{ANSWER}}\mid}}

  • 960 students at Y'vans school
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