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OLEGan [10]
3 years ago
6

Greatest common factor of 21,30

Mathematics
2 answers:
Lynna [10]3 years ago
7 0

Answer:

10

Step-by-step explanation:

Mumz [18]3 years ago
3 0

Answer: 3

Factors of 21

1, 3, 7

Factors of 30

1, 2, 3, 5, 6, 10, 15

Step-by-step explanation:

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The new price of the plane ticket
katen-ka-za [31]

Answer:

159.25

Step-by-step explanation:

175 multiplied by 6% is 10.5

If you subtract 10.5 from 175 you will get 164.5

3 0
3 years ago
Read 2 more answers
Find a quadratic expression with integer coefficients whose roots are <img src="https://tex.z-dn.net/?f=5%2F2%2B%203i" id="TexFo
prohojiy [21]

Answer:

4x² -20x  +61

Step-by-step explanation:

the quadratic equation can be written as (x-root1)(x-root2)

(x-(5/2) -3i) (x-(5/2)+3i), distribute

x² -(5/2)x +3xi -(5/2)x + 25/4 -(15/2)i -3xi +(15/2)i -9i², simplify

x² -(5/2)x -(5/2)x + 25/4  -9i², use the fact that i² =(√-1)² = -1 and substitute i²

x² -(5/2)x -(5/2)x + 25/4 +9, combine like terms and rewrite 9 as 36/4

x² -(10/2)x  +25/4 + 36/4, combine like terms and simplify

x² -5x  +61/4 is the quadratic expression yet it does not have integer coefficients so multiply by 4 to have all coefficients integers

4x² -20x  +61

7 0
3 years ago
Kacey is making a bracelet that is 8 inches long. She uses 1 green bead at each end of the bracelet. She also uses 1 green bead
Effectus [21]

Answer:

The answer would be C. 5

Step-by-step explanation:

5 0
3 years ago
Amy buys 22 envelopes for 13p each and pays with a £5 note.
katovenus [111]
Hi there lol have a great day
3 0
2 years ago
Graph this function y-2=-(x+5)
I am Lyosha [343]
Going to put your function in slope-intercept form for the sake of easier input into Desmos.

y - 2 = - (x + 5)
y - 2 = - x - 5
y = - x - 5 + 2
y = - x - 3


4 0
3 years ago
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