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3 years ago

There are 3000 student in the school 30% of the student are girls find

Mathematics

2 answers:

rusak2 [61]3 years ago

4 0

Step-by-step explanation:

3000
$3000 \div 30 = 1000$
$3000 \times 30 = 90000$

pentagon [3]3 years ago

3 0

A) 3000 * 30% = 3000 * 0.3 =900

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Savatey [412]

use $a^2-b^2=(a+b)(a-b)$

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then use $a^3+b^3=(a+b)(a^2+b^2-ab)$

and $a^3-b^3=(a-b)(a^2+b^2+ab)$

also, $\sin^2\theta+\cos^2\theta=1$

to get $(\cos A-\sin A)(1+\sin A\cos A)(\cos A+ \sin A)(1-\sin A\cos A)$

then again use the first identity In both pairs, i.e.

$(\cos A-\sin A)(\cos A+ \sin A) \cdot (1+\sin A\cos A)(1-\sin A\cos A)$

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3 years ago

Read 2 more answers

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aleksklad [387]

The one missing is the fourth choice.

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Step-by-step explanation:

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77julia77 [94]

Answer:

Step-by-step explanation:

Hello, we can write

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$\boxed{\sf v}$ True

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so the first one is true.

$\boxed{}$ False

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$\boxed{\sf v}$ True

For x different from a we can divide the equation (1) by (x-a).

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$\boxed{\sf v}$ True

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3 years ago