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Thepotemich [5.8K]
3 years ago
11

1/4(8y – 4.8) – 2 (0.9y+ 5.4) + 3/4

Mathematics
1 answer:
timama [110]3 years ago
3 0

Answer:sh

Step-by-step explanation:my

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kodGreya [7K]

Answer:

a=41.8 BC=2.8

Step-by-step explanation:

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angle a

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bc^2=3^2 +5^2-2(3)(5)*cos30

BC^2=\sqrt8.019237886\\

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3 0
2 years ago
How are determinants used to find areas of polygons?
ANTONII [103]
When you arrange the N points in sequence around the polygon (clockwise or counterclockwise), the area is half the magnitude of the sum of the determinants of the points taken pairwise. The N determinants will also include the one involving the last point and the first one.

For example, consider the vertices of a triangle: (1,1), (2,3), (3,-1). Its area can be computed as
  (1/2)*|(1*3-1*2) +(2*-1-3*3) +(3*1-(-1)*1)|
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4 0
3 years ago
Find the slope of a line
Dvinal [7]

Answer:

1 is the slope.

Step-by-step explanation:

I did this math question on edge.

8 0
3 years ago
The cloth shop has announced a reduction in price by 25%. How many shirts priced at Rs 28 should buy to avail a total reduction
Drupady [299]

Answer:

At least 6 shirts should be brought to avail a total reduction of Rs 40.

Step-by-step explanation:

The marked price of each shirt = Rs 28

Discount offered = 25%

So, 25% of marked price  28 = \frac{25}{100}  \times 28 = 7

⇒Reduction on each shirt is Rs 7

Now, total amount reduction needed = Rs 40

So, number of shirts purchased = \frac{\textrm{Total reduction needed}}{\textrm{Reduction on each shirt}}

= 40  Rs /7  Rs  =  5. 71  ≈  6

So, at least 6 shirts should be brought to avail a total reduction of Rs 40.

5 0
3 years ago
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nikdorinn [45]

Answer:

12 years = 16 USD

15 years = 20 USD  

Step-by-step explanation:

15 years =72:4= 18 we round to 20 for 15 years

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72-40 = 32 : 2 = 16 USD for 12 years

7 0
3 years ago
Read 2 more answers
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