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3 years ago

. Your teacher recently found an old Nintendo in a thrift store. Use the formula to predict

Mathematics

1 answer:

Alja [10]3 years ago

5 0

Doesn’t show a formula or original price, unable to answer

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LM = JK then JK = LM What property is this?

konstantin123 [22]

This example is the Symmetric Property.

I hope this helps you!
xo, Leafling

5 0

3 years ago

Multiply. (d+7)(d-7) Simplify your answer.

romanna [79]

Answer:

$\huge\boxed{(d+7)(d-7)=d^2-49}$

Step-by-step explanation:

$\bold{METHOD\ 1:}\\\\(d+7)(d-7)\qquad|\text{use}\ (a+b)(a-b)=a^2-b^2\\\\=d^2-7^2=d^2-49\\\\\bold{METHOD\ 2:}\\\\(d+7)(d-7)\qquad|\text{use FOIL}\ (a+b)(c+d)=ac+ad+bc+bd\\\\=(d)(d)+(d)(-7)+(7)(d)+(7)(-7)\\\\=d^2-7d+7d-49\qquad|\text{combine like terms}\\\\=d^2+(-7d+7d)-49\\\\=d^2-49$

7 0

3 years ago

Please help ASAP with this one too! Thanks!

11Alexandr11 [23.1K]

Hello,

y+3=-6(x+2)
==>y=-6x-15

Answer A

3 0

3 years ago

Read 2 more answers

A rectangle has a length of x + 7 and a width of x-2. Which equation below describes the perimeter, P, of

valkas [14]

Answer:

P = 4x + 10

Step-by-step explanation:

perimeter of a rectangle = 2( width + length )

P = 2 ( x - 2 + x + 7 )

P = 2 ( x + x + 7 - 2 )

P = 2 ( 2x + 5 )

P = 4x + 10

4 0

3 years ago

Estimate the sum of 1,256, 379 and 305,986 by first rounding each number to the nearest ten thousand.

KatRina [158]

9514 1404 393

Answer:

1,570,000

Step-by-step explanation:

The sum is approximately ...

1,260,000 +310,000 = 1,570,000

_____

Additional comment

It is a good idea to estimate the error associated with an estimate. Here, both numbers are rounded up by about 4000 each, so the estimate is around 8000 high.

3 0

3 years ago