A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is the
number of 3-point questions and y is the number of 5-point questions, the system shown represents this situation.
x + y = 24
3x + 5y = 100
What does the solution of this system indicate about the questions on the test?
The test contains 4 three-point questions and 20 five-point questions.
The test contains 10 three-point questions and 14 five-point questiohs.
The test contains 14 three-point questions and 10 five-point questions.
The test contains 20 three-point questions and 8 five-point questions.

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Ответ:

zenzen24

29.05.2022

Mathematics

$8b\sqrt{2ab}$

Step-by-step explanation:

Rewrite 128a $b^{3}$ as $(8b)^{2}$ ⋅ (2ab).

Factor 64 out of 128.

$\sqrt{64 (2)ab^{3} }$

Rewrite 64 as $8^{2}$ .

$\sqrt{8^{2} . 2ab^{3}$

Factor out $b^{2}$ .

$\sqrt{8^{2} . 2a (b^{2}b)$

Move a.

$\sqrt{8^{2} . 2b^{2}ab$

Move 2.

$\sqrt{8^2b^2 . 2ab}$

Rewrite $8^{2} b^{2}$ as $(8b)^{2}$ .

$\sqrt{(8b)^2 . 2 (ab)}$

Add parentheses.

$\sqrt{(8b)^2 . (2ab)}$

Pull terms out from under the radical.

$8b\sqrt{2ab}$

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