3 years ago

Help me with 6 and 7 please

1 answer:

5 0

#7 is B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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love history [14]

One. that is the definition of a line.
Through any two points, there is exactly one line.

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3 years ago

Ymorist [56]

Answer: 57°

Given : In triangle PQR, the side PQ is 17, QR is 15, and PR is 14.

We use law of cosine formula

$QR^2 = PR^2 + PQ^2 - 2* PR * PQ * cos (P)$

$15^2 = 14^2 + 17^2 - 2*14 * 17 * cos(P)$

225 = 196 + 289 - 476 cos(P)

225 = 485 - 476 cos (P)

Subtract 485 on both sides

-260 = -476 cos(P)

$\frac{260}{476}$ = cos(P)

P = $cos^{-1} (\frac{260}{476})$

P= 56.89202

So measure of angle P is 57 degrees

4 0

3 years ago

Gekata [30.6K]

I hope this helps you

(2z)^2-5^2

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3 years ago

andrew11 [14]

-2 is the answer when i figured out the problem

7 0

4 years ago

Svetach [21]

Answer:y-200=75x

Step-by-step explanation:

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3 years ago