What is the answer for this equation? 8s = 96

Mathematics

1 answer:

Luden [163]3 years ago

5 0

Divide both sides by 8
S=96/8
S=12

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A school teacher wants to survey students at her elementary school. She surveys 20 students from each grade level. What type of

Elan Coil [88]

Answer:

Stratified Random sampling

Step-by-step explanation:

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Step-by-step explanation:

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Round to the nearest tenth.

laila [671]

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8.2 units

Step-by-step explanation:

Given that the only information for our triangle are 2 sides and 1 angle, we must use the Law of Cosines to find side BC

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$a^2=b^2+c^2-2bc\cdot cos(A)$

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$m\angle A=23^\circ\\a=BC=?\\b=AC=14\\c=AB=6$

Solve for side "a"

$a^2=b^2+c^2-2bc\cdot cos(A)\\\\a^2=14^2+6^2-2(14)(6)\cdot cos(23^\circ)\\\\a^2=196+36-168cos(23^\circ)\\\\a^2=222-168cos(23^\circ)\\\\a=\sqrt{222-168cos(23^\circ)}\\ \\a\approx8.2$