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Bogdan [553]
2 years ago
10

(2x+5y)(2x+3y).use a identity​

Mathematics
1 answer:
KatRina [158]2 years ago
8 0

Answer:

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

=(2x)^2 + [5y+3y]2x + (5y)(3y)

=4x^2 +16xy + 15y^2

Step-by-step explanation:

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The vertex from of the equation of a parabola is y = (x - 3)2 + 36 what is tge standard form of the equation
Misha Larkins [42]
Multiply it out and collect terms.
  y = (x - 3)² + 36
  y = (x² -6x +9) +36
  y = x² -6x +45
6 0
3 years ago
6p + 1m = $9<br><br> 4p + 2m = $8
Monica [59]
You can multiply 6p + m = 9 by -2 so you gonna have -12p - 2m = -18 then you can say : -12p - 2m = -18 ⇒ -8p = -10 ⇒ p = 10/8 ⇒ p = 1.25  
                 4p + 2m = 8 
so now you can find the m : 6 * 1.25 + m = 9 ⇒ 7.5 + m = 9 ⇒ m = 9 - 7.5 ⇒ m= 1.5 :)))
i hope this is helpful 
have a nice day 
5 0
3 years ago
Read 2 more answers
On the coordinate plane. What is the length of BC if the B coordinate is (1 , 6)
agasfer [191]
You just have to plug your coordinates into the distance formula.
(1, 6) (8, 1)
(X1, Y1) (X2, Y2)

do the work and you get 8.6

4 0
3 years ago
Read 2 more answers
Please help, and if you could show work too that would be amazing!! :)
luda_lava [24]

Step-by-step explanation:

you first need to know what is mean .mean is when you add all the numbers up then divide them by 2

3 0
3 years ago
Kenneth solved a certain number of problems and Harold solved 2 more than twice as many. Together they
Inessa [10]

H(arold) = 2 + 2*K(enneth)

H = 2 + 2K

H + K = 38

Substitution:

2 + 2K + K = 38

3K = 36

K = 12

Kenneth solved 12 problems and Harold solved (2(12) + 2 = 24 + 2 =) 26 problems

6 0
3 years ago
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