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Elis [28]
4 years ago
12

Use the order of operations to simplify the following expression

Mathematics
1 answer:
Citrus2011 [14]4 years ago
3 0
The answer is -9, because of PEMDAS
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Area for a kite<br> I don’t know how to find the area pls help
dusya [7]

Answer:

63.966

Step-by-step explanation:

Area of a kite is

\frac{pq}{2}

where p and q are the diagonals.

The horinzontial diagonal is 8.

We need to find the vertical diagonal length.

The top triangle diagonal measure is

{4}^{2}  +  {x}^{2}  =  {7}^{2}

16 +  {x}^{2}  = 49

{x}^{2}  = 33

x =  \sqrt{33}

The bottom triangle diagonal measure is

{4}^{2}  +  {x}^{2}  =  {11}^{2}

1 6 +  {x}^{2}  = 121

{x}^{2}  = 105

x =  \sqrt{105}

Add the two diagonals.

\sqrt{105}  +  \sqrt{33}

Substitute this in for the formula

\frac{8 \times ( \sqrt{105}  + \sqrt{33}  }{2}

Which simplified gu

Ives us

63.966

Round if neededd.

7 0
3 years ago
Answer these questions <br> GEOMETRY
pickupchik [31]

7. 3/5 = 4.5/x

3x= 5(4.5)

x = 15/2

8. 6/4 = 9/x

6x= 45

x= 15/2

8. since triangle ABC and ADE are identical,

angle E is also 30 degrees

so angle D = 180-(30+70)=80 degrees

9. 9/3 = x/5

3x = 45

x = 45/3 = 15

8 0
3 years ago
I'm not sure about 38 - 53 please help! :)
Maru [420]
38. 6900 grams
39. 19600 grams
40.
27910 grams
41. 32840 grams
42. 
610 grams
43. 970 grams
44.
3712 grams
45. 8937 grams
46. 
37 grams
47. 69 grams
48.
1510 grams
49. 4700 grams
50. 150 grams
51. 15 grams
52. 15200 grams
53. 460

I'm sorry if these are wrong but I hope this could help.
5 0
4 years ago
Read 2 more answers
Sonya is 22 years younger than her mother. the sum of their age is 32. how old are they​
Fantom [35]

Answer:

Sonya is ten her mother is 22

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Why is the answer to a subtraction problem called the difference...
lana [24]
Maybe because you're finding the "difference" between the two numbers. We could also question why the answer to an addition problem is called sum.
Well, 'sum'body said that's what they should be called a long time ago, that's why we're using that term to call them now. 
3 0
3 years ago
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