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liq [111]
3 years ago
11

Which expression represents the difference between 18 and an unknown number

Mathematics
2 answers:
BaLLatris [955]3 years ago
3 0

18 - x   is an expression that represents the difference between 18 and an unknown number
algol [13]3 years ago
3 0
You can use x for the unknown number
like x+18
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HELP ASAP PLZ :)
Natalija [7]

for the triangle...

b=2h

a=(1\2).bh=648

(1/2).2h.h=648

h2=648

h-18|2 in

h=36|2 in

for the rectangle...

L=3+w

a=l+w=648

{3+w}w=648

w2+3w-648=0

Only positive W values make sense here..

w-24=0

w=24 in

So..

L=3+24

3 0
3 years ago
Find the distance between the points (2,4) and (5,0). (PLEASE HELP!)
Inessa05 [86]

Answer:

5

Step-by-step explanation:

Calculate the distance d using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (2, 4) and (x₂, y₂ ) = (5, 0)

d = \sqrt{(5-2)^2+(0-4)^2}

  = \sqrt{3^2+(-4)^2}

  = \sqrt{9+16} = \sqrt{25} = 5

5 0
3 years ago
Read 2 more answers
What is y+12 when y =29
makkiz [27]
The answer would be 41
4 0
3 years ago
Find a quadratic function with the given x-values as the only two REAL zeros. x=-2 and x=8. Please show work! Will mark Brainlie
posledela

 f(x) = (x- zero) * (x -zero)

f(x) = (x--2) (x-8)

f(x) = (x+2) (x-8)

if you need it multiplied out

f(x) = x^2 +2x -8x-16

f(x) = x^2 -6x-16

3 0
3 years ago
Is this true or false pls help ill give brainliest if its right
jek_recluse [69]

Answer:

true..?

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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