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tigry1 [53]
2 years ago
13

Simplify the following by removing the brackets: a (b-c)+d (b-c)​

Mathematics
1 answer:
netineya [11]2 years ago
4 0

Answer:

ab - ac + db - dc

Step-by-step explanation:

you distribute the variables inside the parenthesis

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Let x= t+2 and y= t² Write an equation for y in terms of only X​
AURORKA [14]

Answer:

y =  {x}^{2}  - 4x + 4[ /tex] Step-by-step explanation:[tex] x = t + 2 \\   \implies \: x - 2 = t....(1) \\  y =  {t}^{2} ....(2)  \\ plug \: t = x - 2 \: in \: equation \: (2) \\  y =  {(x - 2)}^{2}  \\  \red{ \bold{ y =  {x}^{2}  - 4x + 4}}

6 0
2 years ago
find the distance between the pair of points. ( square root 5, square root 2) and -3 square root 5, 5 square root 2)
Nata [24]
Use the distance formula 

d  = sqrt ((y2-y1)^2  + (x2-x1)^2))

    =   sqrt ( (5 sqrt2 - sqrt2)^2  +  ( -3sqrt5 - sqrt5)^2)
  
   =     sqrt [( 4sqrt2)^2 + (4sqrt5)^2]

   = sqrt   (32 +  16*5)  =  sqrt 112  = sqrt16 * sqrt7  = 4 sqrt7

The answer is  4 sqrt7
7 0
3 years ago
If you have 45 dollars and you lose 2 thirds in 6 hours how much money do you have left
Nady [450]
Multiply 45 by 2/3 2/3 = 0.66666   so 45*0.6666 = 30
8 0
3 years ago
ABCD ~ JKLM. Write a proportion containing BC and JM
Mashutka [201]

Answer:

\frac{BC}{KL} = \frac{AD}{JM}

Step-by-step explanation:

since the triangles are similar then the ratios of corresponding sides are in proportion , that is

\frac{BC}{KL} = \frac{AD}{JM}

3 0
2 years ago
Read 2 more answers
Gregg subtracted some number x from 47, then multiplied the result by two, subtracted 15 and got 45. What was Gregg's number?
irinina [24]
Work in reverse.

45 + 15= 60. 60/2= 30. 30 + x = 47.

So, x= 47-30.
x= 17.


6 0
2 years ago
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