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Mistytrotter
03.03.2020 •
Mathematics
I could really use some help right now. I have been trying to do this for a few hours and still can't seem to find the right answer. If someone could please help me out it would mean a lot to me.
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Ответ:
EF is 1.98, AB is 16.23 and HI is 12.22
Step-by-step explanation:
Step 1:
In figure 1, given sin 26° = 0.44 and hypotenuse = 4.5. Use trigonometric ratio sin D to find EF.
sin 26° = EF/DF
⇒ 0.44 = EF/4.5
∴ EF = 0.44 × 4.5 = 1.98
Step 2:
In figure 2, given cos 52° = 0.616 and adjacent side (AC) = 10. Use trigonometric ratio cos A to find hypotenuse (AB).
cos 52° = AC/AB
⇒ 0.616 = 10/AB
∴ AB = 10/0.616 = 16.23
Step 3:
In figure 3, given tan 42° = 0.90 and opposite side (GH) = 11. Use trigonometric ratio tan I to find adjacent side (HI).
tan 42° = GH/HI
⇒ 0.90 = 11/HI
∴ HI = 11/0.90 = 12.22
Ответ:
1) 1.98 units
2) 16.23 units
3) 12.22 units
Step-by-step explanation:
Q1) sin(26) = EF/ FD
0.44 = EF/4.5
EF = 4.5×0.44 = 1.98
Q2) cos(52) = AC/AB
0.616 = 10/AB
AB = 10/0.616
AB = 16.23
Q3) tan(42) = GH/HI
0.9 = 11/HI
HI = 11/0.9
HI = 12.22
Ответ:
You need to divide 6 on both sides
Step-by-step explanation: