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Ber [7]
3 years ago
6

NO LINKS OR ELSE YOU'LL BE REPORTED! Only answer if you're very good at Math.Don't guess please.

Mathematics
1 answer:
kotykmax [81]3 years ago
6 0

Answer:

the answer is A........

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rhombus CDEF is shown below. If the slope of FC is 25, what must be the slope of CD in order for CDEF to be a square?
Andrew [12]

Answer:

-\dfrac{1}{25}

Step-by-step explanation:

Given the rhombus CDEF, sides FC and CD are adjacent sides.

Using coordinate geometry, to proof that a quadrilateral is a square, with regards to the slope, the slope of adjacent segments must be negative reciprocals.

In fact, by definition: Two lines with slopes m_1$ and m_2 are perpendicular if:

m_1=-\dfrac{1}{m_2}

Therefore if :

  • FC and CD are adjacent segments
  • Slope of FC=25

For the rhombus to be a square:

Slope of CD =-\dfrac{1}{25}

8 0
3 years ago
Solve for y 8(3y-5)=9(y-5)
alexandr402 [8]

Answer:

To solve for y, you want to use the distributive property

First you want to distribute the 8 through the 3y-5 and the 9 through the y-5

8(3y-5)= 24y-40

9(y-5)= 9y-45

24y-40=9y-45 (get the x on one side, so first add 40 to each side)

24y=9y-5 (now subtract 9y to each side)

15y=-5 (divide both sides by 15)

y= -5/15= -1/3

Hope this helps ;)

8 0
3 years ago
PLEASE HELP ASAP!!!<br> Find the value of x to the nearest tenth.
aleksley [76]

Answer:

9.9

Step-by-step explanation:

a^2+b^c=c^2

15^2+b^2=18^2

225+b^2=324

b^2=99

b=9.94

x=9.94

3 0
3 years ago
91 times 8 equals v times 91
wel

91 * 8 = 91 * v

728 = 91 * v

v = 8

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

5 0
3 years ago
A graph of a quadratic function is shown below.
rewona [7]
(0,800) because it is at 800 but isn’t at zero on the x axis
5 0
3 years ago
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