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Neko [114]
3 years ago
12

I need help with this. please answer

Mathematics
1 answer:
Yuki888 [10]3 years ago
3 0
x^2-10x+21=0\\\\x=\dfrac{-10}{2}=-5\\\\Answer:\boxed{x=-5}
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Please help...<br> thanks due in some hours
Anna [14]

Answer:

1. x=4 y=4√3

2. x=48 y=24√3

4. x=7/√3 y= 14/√3

5. x=27√3 y = 54

Step-by-step explanation:

3 0
3 years ago
Does a vertical stretch make a graph narrower or wider?
Radda [10]

Answer:

narrower

Step-by-step explanation:

8 0
4 years ago
Which of these describes the transformation of ∆XYZ to ∆X᾿Y᾿Z᾿?
12345 [234]

9514 1404 393

Answer:

  A.  translation 8 left

Step-by-step explanation:

Points X'Y'Z' are in the same clockwise order as points XYZ, so no reflection is involved.

Point X' at -6 is 8 units left of point X at 2. ΔXYZ has been translated left 8 units to make ΔX'Y'Z'.

4 0
3 years ago
Read 2 more answers
Consider the line 4x + 7y=-1.
igor_vitrenko [27]

Answer:

1. the slop of a line perpendicular to that line is: 7/4.

2. the slope of a line parallel to that line is: - 4/7

Step-by-step explanation:

To get the perpendicular line you have to find the negative reciprocal of the slope of the original line. and lines with the same slope are parallel.

7 0
3 years ago
I need to know what was the number of sharpened pencils at 7:07 am?
Vanyuwa [196]

You wrote the equation wrong- he starts with 9 pencils so that's a constant and he sharpens 11 pencils for every minute. The equation would be 9+11x with x being the amount of minutes, which in this case is 7. So you just substitute and solve.

9+11x

9+11(7)

9+77

86


Hope this helps!

7 0
4 years ago
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