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Strike441 [17]
4 years ago
9

A) the quadratic x^2-4x-21 can be written in the form (x+a)^2+b find the values of and and b

Mathematics
1 answer:
MakcuM [25]4 years ago
3 0
Part a. A=-2. B=-25
Part b solutions; x=7 x=-3

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A house blueprint has a scale of 1in : 10ft the length and width of each room in the actual house are shown in the table complet
anygoal [31]

Answer:

30x40=3inx4in    

50x50=5inx5in

40x20=4inx2in

30x40=3inx4in

30x30=3inx3in

35x40=3.5inx4in

Step-by-step explanation:

4 0
3 years ago
Need help for math plz
tankabanditka [31]

Answer:

A) Diameter = 12 inches

   Circumference = 37. 68

   Area = 113. 04

Step-by-step explanation:

FORMULAS:

Diameter = Radius × 2

Circumference = 2 × π × Radius

Area = Radius*2 × π

7 0
3 years ago
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Which of the following equation has both -6 and 6 as possible values of c.... C²=36, c³=216, or none of the above
erastova [34]

Answer: THe equation C²=36 can have both -6 and 6 as possible values since -6 squared is 36 and so is 6 squared

7 0
4 years ago
Please help and explain
bagirrra123 [75]

Answer:

See below

Step-by-step explanation:

The three angles inside of the triangle sum to 180

11x + 4       + 3x      + 78 = 180

14x +82 =180

x = 7

then B =   11x + 4    = 11(7) + 4 = 81 degrees

C =  3x = 21 degrees

5 0
2 years ago
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Expand 6(x-8)= x- (8) = help me
maksim [4K]

Answer:

x = 8

Step-by-step explanation:

6(x-8)= x- (8)

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6x- 48 + 48 = x - 8 + 48

6x = x + 40

6x - x = x + 40 - x

5x = 40

5x/5 = 40/5

x = 8

Hope it helps! :)

3 0
3 years ago
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