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Vlada [557]
3 years ago
10

Factorise (x2 - x - 12)

Mathematics
1 answer:
Leno4ka [110]3 years ago
8 0
The answer is (x-4)(x+3)
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Find the value of x in the equation x⁄ 4 + x⁄14 + x⁄17 = 71
Morgarella [4.7K]

Hello from MrBillDoesMath!

Answer:

33769/181

Discussion:

Each term contains "x" so factoring it out gives

x( 1/4 + 1/14 + 1/17)  = 71       (*)

Use common factor (17*14*4  = 952) as the denominator to combine terms:

1/4 =  (17*14)/ 952  = 238/952

1/14 = (17*4)/952 = 68/952

1/17 = (14*4)/952  = 56/952

so 1/4 + 1/14 + 1/17 =    (238 + 68 + 56)/ 952 =  362/952 = 181/476

Substituting in (*) gives

x ( 181/476)  = 71                       => multiply both sides by 476/181

x = (71 * 476)/181                       => 71* 476 =33769

x = 33769/181

Thank you,

MrB

4 0
3 years ago
For test Please Help!!!
jonny [76]

Answer:

x=24.621

Step-by-step explanation:

tan(72)=x/8

tan(72)×8=x

x=24.621

4 0
3 years ago
Which is larger, 1.13 or 1.1301
marissa [1.9K]
1.1301 is larger cuz 1.13 is same as 1.1300
5 0
2 years ago
Point (-5,2) is reflected over the y axis . where is the new point located ?​
Ierofanga [76]

Answer:

0,-7 or anywhere i guess-

Step-by-step explanation:

4 0
3 years ago
How do I do these problems?
Novosadov [1.4K]
A midsegment is half as long as the one it's parallel to.

2. x = 16/2 = 8

3. y+4 = 6
  y = 2

4. z/2 = 15/2
  z = 15

5. (5/2)x + 4 = (6x +4)/2
  2 = x/2
  x = 4 . . . . . . matches selection b.
7 0
3 years ago
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