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Afina-wow [57]
3 years ago
13

Deborah's total bill for dinner

Mathematics
2 answers:
Alchen [17]3 years ago
6 0
She tipped the waitress $11.58
kondor19780726 [428]3 years ago
6 0

Step-by-step explanation:

$ 11.58 is your answer....

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Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅?
Artemon [7]

Answer:

b

Step-by-step explanation:

Using the trigonometric identity

• sin²x + cos²x = 1 , hence

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cosΦ > 0 for 0 < Φ < \frac{\pi }{2}

cosΦ = \sqrt{1-(\frac{1}{4})^2 } = \sqrt{1-\frac{1}{16} } = \sqrt{\frac{15}{16} } = \frac{\sqrt{15} }{4} → b


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What is the length of segment AB? (1 point) Coordinate grid shown from negative 8 to positive 8 on both x axis and y axis at int
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Answer:

<h2>The distance between points A and B is 8.5 units, approximately.</h2>

Step-by-step explanation:

In the image attached you can observe a representation of the problem.

We have to find the distance between points A and B, which have coordinates (6,0) and (0,6), respectively.

The definition of distance between to given points is

d=\sqrt{(y_{2} -y_{1} )^{2} +(x_{2} -x_{1})^{2} }

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d_{AB}=\sqrt{(6-0)^{2} +(0-6)^{2} }  =\sqrt{36+36}=\sqrt{72} \\ d_{AB} \approx 8.5

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8 0
4 years ago
In the above bridge, line segment BD is the perpendicular bisector of line segment AC. For the bridge to be safe, Triangle ABD i
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Answer: SAS postulate will be use to prove  Δ ABD ≅ ΔCBD

Step-by-step explanation:

Here, In ΔABC line segment BD is the perpendicular bisector of line segment AC,

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Therefore, By SAS postulate of congruence,

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