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DerKrebs [107]
3 years ago
13

HELP ME !!!!!!!!!!!!!!!!!!​

Mathematics
1 answer:
astra-53 [7]3 years ago
5 0

Answer:

c is the answer for 12. because it is a straight line and shows there profit

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The measure of an angle is five times the measure of its complementary angle. What is the measure of each angle?
GalinKa [24]

Answer:

150 degrees

Step-by-step explanation:

  1. Let the supplement = x  
  2. So the angle you want is 5x  
  3. Then [x + 5x] = 180 because they are supplementary.  
  4. Solving. 6x = 180. Then x = 30.  
  5. So the angle is 5x = 5×30 = 150 degrees
3 0
3 years ago
Which fraction has a value thats equal to 7/8? <br> A) 49/64<br> B) 21/24<br> C) 15/8<br> D) 56/8
serg [7]
You answer is B you times both the top and the bottom by 3 
5 0
3 years ago
X^2+10x+5=30 quadratic equation
Vsevolod [243]
First subtract 30 from both sides so it is equal to 0

the quadratic formula is -b plus or minus sqrt of (b^2 - 4ac) all over 2a so
-10 plus or minus sqrt (100-25) all over 2
this is equivalent to 
4 0
3 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPP
ch4aika [34]
The answer is 1. sin x function oscillates propagating in the x direction with its maximum and minimum at y=1 and y=-1 
5 0
3 years ago
An alloy is composed of nickel, zinc, and copper in a ration of 7:2:9. How many kilograms of each metal are needed to make 3.6kg
motikmotik
Well, the short answer is, we divide that 3.6 by (7+2+9) and then we give as many pieces at the ratio to each, so let's do so,

\bf \stackrel{nickel}{7}~~:~~\stackrel{zinc}{2}~~:~~\stackrel{copper}{9}&#10;\\\\\\&#10;\stackrel{nickel}{7\cdot \frac{3.6}{7+2+9}}~~:~~\stackrel{zinc}{2\cdot \frac{3.6}{7+2+9}}~~:~~\stackrel{copper}{9\cdot \frac{3.6}{7+2+9}}&#10;\\\\\\&#10;\stackrel{nickel}{7\cdot 0.2}~~:~~\stackrel{zinc}{2\cdot 0.2}~~:~~\stackrel{copper}{9\cdot 0.2}&#10;\\\\\\&#10;\stackrel{nickel}{1.4}~~:~~\stackrel{zinc}{0.4}~~:~~\stackrel{copper}{1.8}
6 0
3 years ago
Read 2 more answers
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