2 years ago

Can you help me with this

Mathematics

1 answer:

Stels [109]2 years ago

8 0

Answer:

i think it is b

Step-by-step explanation:

i am not good at math sorry

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Natasha2012 [34]

You add the like terms. In this case, the like terms are -6w,+7w & 5,-4.
-6w + 7w = 1w.
5 - 4 = -1.
The coefficients (terms with variables - letters) comes firm, then the terms (numbers)
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so the final answer is: 1w -1 :)

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2 years ago

A boundary stripe 6 in. wide is painted around a rectangle whose dimensions are 120 ft by 230 ft. Use differentials to approxima

Nimfa-mama [501]

Answer:

350 square feet

Step-by-step explanation:

We are given that

Width of strip=6 in

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We know that

Area of rectangle ,A=xy

Differentiate

$dA=\frac{\partial A}{\partial x}x+\frac{\partial A}{\partial y}y$

We have $\frac{\partial A}{\partial x}=y=230 ft$

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$dx=\frac{12}{12}=1 ft$

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Because 6 in added in both side of breadth

dy= $\frac{12}{12}=1 ft$

Because 6 in added on both sides of length of rectangle

Substitute the values

$dA=230\times 1+120\times 1=350 ft^2$

Hence, the number of square feet of paint in the strip=350 square feet

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3 years ago

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qwelly [4]

Answer:

Step-by-step explanation:

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2 years ago

How will I explain this? Someone help

QveST [7]

Answer:

the answer is 11

Step-by-step explanation:

u do what is in the parentheses first then u multiply it by 4 than u add that to the answer of 8 divided by 2 than u subtract that by 5

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