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lawyer [7]
3 years ago
12

Find the exact value of sin ( 7 π 4 ) using reference angles

Mathematics
1 answer:
Firdavs [7]3 years ago
3 0

Answer:

-1/root2

Step-by-step explanation:

7pi/4 radians is the same as -pi/4 radians

sin(-pi/4) is -sin(pi/4) = -1/root2

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Please please help me
Yanka [14]
Let A, M, and w represent Angelo's distance per week, Marc's distance per week, and the number of weeks of this regimen, respectively.
.. A = w +7 . . . . . . . Angelo's distance goes up 1 mile/week each week
.. M = 2w +4 . . . . . Marc's distance goes up 2 miles/week each week

a) A = M
.. w +7 = 2w +4
.. 3 = w . . . . . . . . . . subtract w+4

After 3 weeks Angelo and Marc will be running the same distance.


b) A = M = 3+7 = 2*3+4 = 10

That distance will be 10 miles per week.

_____
This problem can be a little confusing because "miles per week" is a rate, and we're talking about the rate of increase of that rate: 1 or 2 miles per week per week. It might be easier to think of the numbers as "weekly distance", rather than "miles per week".
6 0
3 years ago
PLEASE HELP THIS IS SUPER IMPORTANT!!!! A culture of bacteria has an initial population of 860 bacteria and doubles every 9
never [62]

Answer:

  • 1170

Step-by-step explanation:

<u>Substitute values into given equation and solve for P(t):</u>

  • P(t) = P₀*2^(t/d)
  • P(4) = 860*2^(4/9) = 1170 (rounded)
4 0
3 years ago
Could you please help me with number
Anarel [89]
Too blury,take a good pic
6 0
3 years ago
On this triangle which is the fifth row and third position.
NARA [144]

Answer:

1331

Step-by-step explanation:

Im not sure, get a second opinion

6 0
3 years ago
Solve for X. (1 point)<br> -ax + 3b &gt; 5
Anarel [89]

Answer:

x<(3b-5)/a

Step-by-step explanation:

Subtract 3b from both sides: -ax>5-3b

Divide by -a, when dividing/multiplying a negative you flip the </> sign: x<(3b-5)/a

4 0
3 years ago
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