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Tems11 [23]
3 years ago
10

What is the value of arccos(−1/2)in radians? a) 2pi/3 b)pi/3 c)pi/6 d)5pi/6

Mathematics
1 answer:
Anastaziya [24]3 years ago
4 0

Answer:

a] 2pi/3

this is the answer

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HELP!! 15 POINTS
Sladkaya [172]
<span>1. For the data in the table, does y vary directly with X? If it does write an equation for the direct variation.(X,y) (8,11) (16,22) (24,33) 
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Yes y=1.375x 

</span><span>2.for the data in the table, does y vary directly with X? If it does write an equation for the direct variation. (X,y) (16,4) (32,16) (48,36) 
</span>No y does not very directly with x*** <span> 

</span><span>3. (Time/hour,distance/miles)(4,233) (6,348) (8,464) (10, 580) 
Express the relationship between distance and time in a simplified form as a unit rate. Determine which statement correctly interprets this relationship. 
</span><span>58/1 your car travels 58 miles in 1 hour 

</span><span>4.what is the slope of the line that passes through the pair of points (2,5) and (8,3) 

</span>-1/3 

<span>4.what is the slope of the line that passes through the pair of points (-5.2,8.7) and (-3.2,2.7) 
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-3 

<span>5. What is the slope of the line that passes through the pair of points (3/2,-2) and (-3,7/3) 

-26/27 

</span><span>6.write an equation in point slope from for the line through the given point with the given slope (5,2) m=3 
 
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Y+5=-2/5(X+3) 

</span><span>8. Write an equation in point slope from for the line through the given point with the given slope. (4,-7) m=-0.54 

Y+7=-0.54(x-4) 

9. The table shows the height of a plant as it grows. Which equation in point slope from gives the plants height (time,plant height) (2,16)(4,32)(6,48)(8,64) 

Y-16=8(X-2)*** 
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2x+3y=21 



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X+2y=2 

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3 0
3 years ago
Read 2 more answers
What equation would you use to solve for x?
Brut [27]
I think you would use the equation 2x+1+33+90=180
3 0
3 years ago
one night a theater sold 548 movie tickets. an adult’s costs $6.50 an child’s cost $3.50. in all, $2,881 was takin in. how many
gavmur [86]

Answer:

  • 321 adult tickets
  • 227 child tickets

Step-by-step explanation:

This sort of problem is easily solved by defining a variable to be the quantity of the higher-value contributor. Here, we can let x represent the number of adult tickets. Then total revenue is ...

  6.50x +3.50(548-x) = 2881

  3x +1918 = 2881 . . . . . . . . . . . . eliminate parentheses, collect terms

  3x = 963 . . . . . . . . . . . . . . . . . . subtract 1918

  x = 321 . . . . . . . . . . . . . . . . . . . . divide by 3

  548-x = 548 -321 = 227 . . . . . .number of child tickets

321 adult tickets and 227 child tickets were sold.

3 0
3 years ago
HELP!
artcher [175]

Answer:

B.Obtuse

as shown in the pictures that you put the angel is obtuse

6 0
3 years ago
1) A set of numbers in parentheses separated by a comma like (3,-4) is called an
Kruka [31]
The answer is b. Ordered pairs
5 0
3 years ago
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