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lisov135 [29]
3 years ago
12

Solve for x in the equation x^2-4x-9=29

Mathematics
1 answer:
Olegator [25]3 years ago
7 0

Answer:

x = 2 +  √ 42 ,  2  −  √ 42

Decimal Form:

x = 8.48074069 ,  − 4.48074069

Step-by-step explanation:

Solve the equation for  x  by finding  a ,  b , and  c  of the quadratic then applying the quadratic formula.

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What is the area of the figure?
Mrrafil [7]

Answer:

The shape has a total area of 14.96cm²

Step-by-step explanation:

To solve this all you need to do is take the area of the outer rectangle, and subtract the area of the inner rectangle.

The outer rectangle is 5.6 by 6.4 cm.  To get its area, just multiply those dimensions. When you do so you get the area 35.84cm².

Next the inner rectangle needs to be subtracted.  First though, we need its width, which we're not directly given.

We do however know the width of the entire shape, and the width of segments left after cutting out the inner rectangle.  All we need to do then is subtract the later from the former to the the inner rectangle's width:

5.6cm - 1.2cm - 0.8cm = 3.6cm

Great!  The inner rectangle has an area of 3.6cm × 5.8cm.  That gives us 20.88cm².

The final step is to subtract that 20.88 square cm from the 35.84 that we already have.  Doing so gives us a result of 14.96cm², and that is the final answer.

5 0
3 years ago
Read 2 more answers
the area of a rectangle is 10 square units the length is 2 units and the width is y units 10 = 2y what is the value of y. y = 12
frutty [35]

Answer:

2(5+y)+2y=38 10+2y+2y=38 4y=28 y=7  i think

Step-by-step explanation:

4 0
3 years ago
there are 40 students waiting in the line to enter the museum. There are 4 times as many students in the museum as are in line w
JulijaS [17]

9514 1404 393

Answer:

  160

Step-by-step explanation:

The problem statement tells us ...

  (# in museum) = 4 × (# waiting)

  (# in museum) = 4 × 40 . . . . . . . . . . . . the number waiting is 40

  # in museum = 160

6 0
3 years ago
Find mPMA + mCMT. Please help..
juin [17]

PMA = 37

CMT =  101 - 54 =47

Total = 37 + 47 = 84

Answer: A. 84

8 0
3 years ago
Stefan won 54 lollipops playing hoops at the county fair. At school he gave three to every student in his math class. He only ha
Natalka [10]
54 - ? = 9
? = 45
45 divide 3 is 15
15 people
3 0
3 years ago
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