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Lesechka [4]
3 years ago
14

Find the first three terms of the sequence below. T, = 2n– 3n - 6

Mathematics
1 answer:
Arada [10]3 years ago
5 0

Answer:

-n+t equal to 6 is the answer to that question

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Using the Law of Cosines, in triangle DEF, if e=18yd, d=10yd, f=22yd, find measurement of angle D
Ivahew [28]
Check the picture below.

\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}
\\\\\\
\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}=cos(C)\implies cos^{-1}\left(\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}\right)=\measuredangle C\\\\
-------------------------------\\\\
\begin{cases}
d=10\\
e=18\\
f=22
\end{cases}\implies cos^{-1}\left(\cfrac{{{ 18}}^2+{{ 22}}^2-10^2}{2(18)(22)}\right)=\measuredangle D

\bf \implies cos^{-1}\left(0.893\overline{93}\right)=\measuredangle D\implies 26.63^o\approx \measuredangle D

7 0
4 years ago
Pleaseeeeeeee help thank you
ycow [4]

Answer:

It would be selected 130 times.

Step-by-step explanation:

peach chew was selected 13 times out of 60, so 13/60 will be peach

multiply the amount by 600, 13/60 * 600 = 130

5 0
3 years ago
Read 2 more answers
6m+10p when m=8 and p=14
Grace [21]

Answer:

184

Step-by-step explanation:

6m + 10p

6(8) + 10(14) =

48 + 140 = 184

plz give brainliest :)

3 0
3 years ago
Please help with this
katrin [286]

Answer:

3rd Option

Step-by-step explanation:

When you find the ratio of the 2 triangles, it is 14/5, so the 2nd option and 4th option are out of the park (The triangles are indeed similar). You are left with options 1 and 3. Option 3 is the best answer as you have to match the vertices of each triangle to each other.

8 0
3 years ago
What is 65% of 47? Please help me fast.
liubo4ka [24]
'of' in math implies that the values are being multiplied together, so multiply 47 and 65%;
47 * 65% = 47 * .65 = 30.55 
6 0
3 years ago
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