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sdas [7]
3 years ago
6

If sin⁡ θ=− 8/17 and 270°<θ<360°, what is cos⁡ θ?

Mathematics
1 answer:
I am Lyosha [343]3 years ago
6 0
Help pls help pls help pls help pls
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The width of a rectangle is 8 units less than the length. The area of the rectangle is 9 units. What is the length, in units, of
Kipish [7]
W=l-8
a=9
a=lw
9=(l-8)l
9=l²-8l
0=l²-8l-9
factor
0=(l-9)(l+1)
set to zero
l-9=0
l=9
l+1=0
l=-1, false length can't be negative


l=9
the length is 9 units long
8 0
3 years ago
Dwayne plays five games of rock-paper-scissors. In order to seem unpredictable, he never chooses the same move (rock, paper, or
Andreyy89

Answer:

48

Step-by-step explanation:

First, in this problem, you would assume that there are five numbers to multiply since Dwayne played 5 games.  

 

                                                                                       

 

In the first blank, he could choose any move, and there are three, rock, paper, and scissors. In the first blank, you would put 3. Then, since you already picked one, you can't repeat it, so you would end up with 2 for the second blank. Continuing with the next blanks, the third, fourth, and fifth spaces would be 2 choices because you cannot have the one choice you chose previously. In the end, the blanks would look somewhat like this:

 

3    2    2    2    2

 

And you would multiply all the numbers.

 

3  x  2  x  2  x  2  x  2

                                                                  = 6 x 8

                                                                  = 48

6 0
3 years ago
Factor the expression. ( q2 − r2s) ( q4 + q2r2s + r4s2)
melomori [17]

(5q2 − r2s)(25q^4+5q^2r^2s+1r^4s^2)

3 0
2 years ago
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The sales tax in your city is %8.8, point, percent, and an item costs \$63$ before tax.
Flura [38]

Answer:

$68.54

Step-by-step explanation:

7 0
3 years ago
How do i solve this <br>n+1/7=2/3
Tanya [424]
N+3/21=14/21
n=11/21
Hope this helps!
8 0
3 years ago
Read 2 more answers
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