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3 years ago

Confused on my sons math homework. We are subtracting three digit numbers. Please help.

Mathematics

1 answer:

Mumz [18]3 years ago

7 0

Answer:

863-7=856, 870-30=840, 900-55=845

Step-by-step explanation:

I think this may be the answer that is if you are to change the equations to subtraction problems, I can't see the picture so it's hard to answer.

Have a great day!

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The length of a rectangle is 3ft less than double the width, and the area of the rectangle is 14ft^2 find the dimensions of rect

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Answer: $4\times 3.5\ ft^2$

Step-by-step explanation:

Given

area of the rectangle is $A=14\ ft^2$

Suppose width is given by w

So, length is $l=2w-3$

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putting values

$\Rightarrow A=(2w-3)w\\\Rightarrow 14=2w^2-3w\\\Rightarrow 2w^2-3w-14=0\\\Rightarrow 2w^2-7w+4w-14=0\\\Rightarrow w(2w-7)+2(2w-7)=0\\\Rightarrow (2w-7)(w+2)=0\\\\\Rightarrow w=\dfrac{7}{2}\ ft$

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2 years ago

If triangle STU is congruent to triangle VWX, which statement is not true?

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If triangles are congruent then, their corresponding sides and angles should have the same measurement. From the given, STU is congruent to VWX, angle S, T, U should be congruent to angles V, W, and X, respectively. From the choices, the answer should be letter D. because U and V do not appear in the same order from both names.

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3 years ago

Pythagorean theorem to determine if a triangle with sides 2 ft,5ft,4ft is a right triangle

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$a^2 + b^2 = c^2$

$2^2 + 4^2 = 5^2$

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Since 20 = 25 is clearly a false statement, the three side lengths 2 ft, 4 ft, and 5 ft do not form a right triangle.

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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