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julia-pushkina [17]
3 years ago
7

Factorise: 2x² -7x -4

Mathematics
2 answers:
schepotkina [342]3 years ago
5 0
The terms in x must be 2x and x. The factors of -4 are either -4 and 1, -1 and 4, -2 and 2 or 2 and -2. Trying each of the combinations we get (2x + 1)(x - 4) as the solution.
CaHeK987 [17]3 years ago
4 0

2x-7x-4x=0.875 the answer is 0.875 cause of the fact that seven and two are the ones with the varible


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20 points!!!
Inga [223]

Answer:

82

Step-by-step explanation:

We are given that a graph which shows the number of beads used for varying cord lengths.

The graph

y=2.52x+1.61

We have to find the number of beads that she can used for cord length 32 in.

Substitute the value x=32

Then, we get

y=2.52(32)+1.61=82.25

After round to unit place then, we get

y=82

Hence, the best estimate she can used  for number of beads =82

Answer: 82

7 0
3 years ago
Read 2 more answers
Please help n show work
notsponge [240]

x = time in minutes

y = distance remaining

Steve starts at home when the time is x = 0 minutes. The y value y = 40 pairs up with this x value. This is shown by the point (0,40) on the diagonal line, aka the y intercept. The y intercept is where the line crosses the y axis.

The y = 40 indicates that Steve has 40 miles remaining when he starts at home. In other words, the distance from home to work is 40 miles.

The x intercept is where the diagonal line crosses or touches the x axis. The x intercept is (45,0) which represents the idea that 45 minutes have passed by. The y = 0 means that he has 0 miles left go to. Steve has reached the office at this point.

-----------------------------------------------

Answers:

Steve's office is located 40 miles from home

It takes him 45 minutes to travel this distance

3 0
3 years ago
The late fee at the library is based on the number of days a book is late. Carter paid $1.08 for a book that way nine days late.
olasank [31]

Answer:

16 days

Step-by-step explanation:

108/9 is 12. The late fee is 12¢ per day. 16x12 is 192.

7 0
3 years ago
What is the greatest common factor of 16,32, and 44?
liubo4ka [24]
The greatest common factor of the three numbers is 4
4 0
3 years ago
What is 5 and 3 quarters
liraira [26]

Answer:

In general, 5 and 3 quarters would be 5.75 :)

Remember, there are 4 quarters in $1.00


7 0
3 years ago
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