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3 years ago

What is the length of missing side DE? Round answer to nearest tenth.

Mathematics

1 answer:

Oksi-84 [34.3K]3 years ago

5 0

Answer:

Step-by-step explanation:

Considering the given triangle QED, to determine ED, we would apply the sine rule. It is expressed as

a/SinA = b/SinB = c/SinC

Where a, b and c are the length of each side of the triangle and angle A, Angle B and angle C are the corresponding angles of the triangle. Likening it to the given triangle, the expression becomes

ED/SinQ = EQ/SinD = QD/SinE

Therefore

ED/Sin 49 = 2/Sin 35

Cross multiplying, it becomes

EDSin35 = 2Sin49

0.574ED = 2 × 0.755

0.574ED = 1.51

ED = 1.51/0.574

ED = 2.63 in

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notsponge [240]

Answer:

= -x+6

Step-by-step explanation:

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3 years ago

Jon is launching rockets in an open field. The path of the rocket can be modeled by the quadratic function h(t) = -16t^2 + 96t,

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It will reach 80 feet for the second time after 5 seconds.

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We use the quadratic formula to solve:
$t=\frac{-96\pm \sqrt{96^2-4(-16)(-80)}}{2(-16)}
\\
\\t=\frac{-96\pm \sqrt{9216-5120}}{-32}
\\
\\t=\frac{-96\pm \sqrt{4096}}{-32}
\\
\\t=\frac{-96\pm 64}{-32}
\\
\\t=\frac{-96+64}{-32} \text{ or } 0=\frac{-96-64}{-32}
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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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inessss [21]

Answer:

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Step-by-step explanation:

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3 years ago