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3 years ago

PLEASE HELP! ( no random links )

Mathematics

1 answer:

AURORKA [14]3 years ago

7 0

Answer:

A statistical question

Step-by-step explanation:

A statistical question is a question that can be answered by collecting data that vary. For example, “How old am I?” is not a statistical question, but “How old are the students in my school?” is a statistical question.

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HELP ME PLEASE <br> solve for the right triangle

ololo11 [35]

Answer:

XYsq = 9sq - 6sq

XY = √45 = 6.7 units

cosZ = 6/9 = .666

Z = 48.25°

sinY = 6/9 = .666

Y = 41.75°

hope it helps :D

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3 years ago

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Naddik [55]

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3 years ago

PLEASE HELP WITH GEOMETRY WILL GIVE BRAINLIEST

sammy [17]

Answer:

Option D

Step-by-step explanation:

In the first three options we can evaluate the values of x with the help of Sine Rule for all the triangles

The Rule says

$\frac{\sin A}{a}=\frac{\sin B}{b}=\frac{\sin C}{c}$

Where a , b and c are the sides opposite to the angles A, B and C of any ΔABC.

Hence , in order to determine unknown values of sides or angles , we need any 3 values from all 3 sides and 3 angles in a triangle. First Three options give us three values but the last option gives only 2.

Example

in first option we can apply Sine Rule as

$\frac{\sin 84}{x}=\frac{\sin 63}{3}$

$\frac{0.994}{x}=\frac{0.891}{3}$

$x=\frac{0.991 \times 3}{0.891}$

$x=\frac{2.973}{0.891}$

$x=3.336$

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3 years ago