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3 years ago

There were 845 students using Schoology in IRSD in 2017. In 2016 , there were 608 students using Schoology in the district.

Mathematics

2 answers:

vfiekz [6]3 years ago

6 0

Answer:

THIS WEBSITE SUCKS MY

Step-by-step explanation:

F IT

omeli [17]3 years ago

4 0

313.120 (round as you would like)

Step-by-step explanation:

First you take the 51.5%, and divide it by 100, you should get 0.515. Now multiply with the 608 students, your answer should be 313.20, Ta Da!!! its right!! P.S You should also round (to 313) Please make this brainliest

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3 years ago

What is these decimal numbers from least to greatest

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Least to Greatest:
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3 years ago

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Question 2

SCORPION-xisa [38]

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3 years ago

Diego is solving the equation x^2-12x = 21

uysha [10]

Answer:

The solutions to the quadratic equations will be:

$x=\sqrt{57}+6,\:x=-\sqrt{57}+6$

Step-by-step explanation:

Given the expression

$x^2-12x\:=\:21$

Let us solve the equation by completing the square

$x^2-12x\:=\:21$

Add (-6)² to both sides

$x^2-12x+\left(-6\right)^2=21+\left(-6\right)^2$

simplify

$x^2-12x+\left(-6\right)^2=57$

Apply perfect square formula: (a-b)² = a²-2ab+b²

i.e.

$x^2-12x+\left(-6\right)^2=\left(x-6\right)^2$

so the expression becomes

$\left(x-6\right)^2=57$

$\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}$

solve

$x-6=\sqrt{57}$

add 6 to both sides

$x-6+6=\sqrt{57}+6$

Simplify

$x=\sqrt{57}+6$

also solving

$x-6=-\sqrt{57}$

add 6 to both sides

$x-6+6=-\sqrt{57}+6$

Simplify

$x=-\sqrt{57}+6$

Therefore, the solutions to the quadratic equation will be:

$x=\sqrt{57}+6,\:x=-\sqrt{57}+6$

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3 years ago

Please help with this problem

Maurinko [17]

Answer:

0.01p + 0.05n > 40

0.01p + 0.05n < 20

Step-by-step explanation:

it has to be MORE (greater) than 40

it has to be LESS than 20 coins

hope this helps

not sure if you have to write the second equation, so sorry if it's wrong. :)

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3 years ago