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kvasek [131]
3 years ago
7

5x(20 divided by 4) the power of 2 Help

Mathematics
2 answers:
Yanka [14]3 years ago
8 0
Do you mean 5*(20/4)^2 or (5*(20/4))^2?

because if you mean 5*(20/4)^2, then you would square the 20/4 first (so 5, which is 25 to the power of 2). then 25 times 5 is 125.

but if you mean (5*(20/4))^2, then you would multiply the 5 with (20/4), which is 25, and then square the 25, which would be 625.

valina [46]3 years ago
6 0
The answer maybe 125.
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(1/3+5/6)*m ( let m=1/4
olga55 [171]

Answer:

The value of \left(\frac{1}{3}+\frac{5}{6}\right)\cdot m  when  m=\frac{1}{4} would be:

\left(\frac{1}{3}+\frac{5}{6}\right)\frac{1}{4}=\frac{7}{24}

Step-by-step explanation:

Considering the expression

\left(\frac{1}{3}+\frac{5}{6}\right)\cdot m

As

  • m=\frac{1}{4}

As the expression is

\left(\frac{1}{3}+\frac{5}{6}\right)\cdot m

Putting m=\frac{1}{4} in the given expression would bring:

\left(\frac{1}{3}+\frac{5}{6}\right)\cdot m

\left(\frac{1}{3}+\frac{5}{6}\right)\frac{1}{4}

\mathrm{Join}\:\frac{1}{3}+\frac{5}{6}:\quad \frac{7}{6}

=\frac{7}{6}\cdot \frac{1}{4}

\mathrm{Multiply\:fractions}:\quad \frac{a}{b}\cdot \frac{c}{d}=\frac{a\:\cdot \:c}{b\:\cdot \:d}

=\frac{7\cdot \:1}{6\cdot \:4}

\mathrm{Multiply\:the\:numbers:}\:7\cdot \:1=7

=\frac{7}{6\cdot \:4}

\mathrm{Multiply\:the\:numbers:}\:6\cdot \:4=24

=\frac{7}{24}

Therefore, the value of \left(\frac{1}{3}+\frac{5}{6}\right)\cdot m  when  m=\frac{1}{4} would be:

\left(\frac{1}{3}+\frac{5}{6}\right)\frac{1}{4}=\frac{7}{24}

Keywords: algebraic expression

Learn more about simplifying algebraic expression from brainly.com/question/4687406

#learnwithBrainly

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Answer:

The factors of given quadratic equation

<em>   </em>x = \frac{9}{15} and x = -2<em />

Step-by-step explanation:

<u><em>Explanation:-</em></u>

<em>Given quadratic equation 15x² +39 x -18 =0</em>

<em> The factors of 270 = 30 × 9</em>

<em>The quadratic equation 15x² +39 x -18 =0</em>

<em>                                    ⇒ 15 x² +30 x-9x -18=0</em>

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<em>                       15 x =9   and  x = -2</em>

<em>                       </em>x = \frac{9}{15} and x = -2<em />

<u><em></em></u>

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