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SIZIF [17.4K]
3 years ago
10

Which expression is equivalent to 6m+(m-2)(m+7)+3

Mathematics
1 answer:
Vika [28.1K]3 years ago
5 0

Answer:

m^{2} + 11m - 11

Step-by-step explanation:

6m+(m-2)(m+7)+3  =   6m   +  [ m*m - 14 -2m + 7m]  + 3

=  6m  + mm - 14 + 5m  + 3

=  mm + 11m - 11

6m+(m-2)(m+7)+3   = m^{2} + 11m - 11

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Anna is making a banner out of 4 congruent triangles as shown below. How much blue trim will she need for each side
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Answer:

The length of each blue trim is 17.2 inches

Step-by-step explanation:

Given

See attachment for banner

Required

The length of each blue trim

Since all 4 triangles are equal, then the dimension of 1 triangle is:

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The hypotenuse (x) of the triangle blue trim is represented by the blue trim

So:

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3 years ago
Lynn has a box of crayons.
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Answer:

<em>There are 72 crayons in the box</em>

Step-by-step explanation:

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Answer:

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Required

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