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MATH / Suppose sinD=0.7 in the diagram below. What is DE? [asy]

Problem

Answer published by the source. Consult the official source to check your work against its answer.

problem

Suppose sinD=0.7\sin D = 0.7 in the diagram below. What is DEDE? [asy] pair D,E,F; F = (0,0); D = (sqrt(51),7); E = (0,7); draw(D--E--F--D); draw(rightanglemark(D,E,F,15)); label("DD",D,NE); label("EE",E,NW); label("FF",F,SW); label("77",(E+F)/2,W); [/asy]
Plain-text mathematical notation (without MathML)
Suppose sinD=0.7 in the diagram below. What is DE? [asy]
pair D,E,F;
F = (0,0);
D = (sqrt(51),7);
E = (0,7);
draw(D--E--F--D);
draw(rightanglemark(D,E,F,15));
label("D",D,NE);
label("E",E,NW);
label("F",F,SW);
label("7",(E+F)/2,W);
[/asy]
Original LaTeX notation
Suppose $\sin D = 0.7$ in the diagram below. What is $DE$? [asy]
pair D,E,F;
F = (0,0);
D = (sqrt(51),7);
E = (0,7);
draw(D--E--F--D);
draw(rightanglemark(D,E,F,15));
label("$D$",D,NE);
label("$E$",E,NW);
label("$F$",F,SW);
label("$7$",(E+F)/2,W);
[/asy]

level

Level 1

type

Precalculus

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Source and history

task_id
0d4539d3-aec2-5996-9c9c-10b38f3a3552
task_key
precalculus--test--0d4539d3-aec2-5996-9c9c-10b38f3a3552
task_revision_id
1
config / split
precalculus / test

Official source

initial import