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Mama L [17]
3 years ago
6

Alistair has a rectangular picture measuring 8 inches by 7 inches. He makes a frame for picture. The area of the frame is 34 squ

are inches, and the width of the frame is x inches.
Mathematics
1 answer:
egoroff_w [7]3 years ago
6 0
Although the question is not given,I can infere that you need to know the value of x, that is the widht of the frame.

Note that the dimensions of the rectangle covered by the frame are:

 8 + 2x and 7 + 2x, meaning that the area covered by the whole figure is:

 (8 + 2x) * (7 + 2x).


While the area of the picture is 8 in * 7 in = 56 in^2.

Then, you can state that the area of just the frame meets this equation:

area of the frame = area of the whole figure - area of the picture

34 = (8+2x)(7+2x) - 56

Now solve the equation, starting by expanding the product of the two parenthesis:

8*7 + 16x + 14x + 4x^2 - 56 = 34

4x^2 + 30x + 56 - 56 - 34 = 0

4x^2 + 30x - 34 = 0

Divide by 2 => 2x^2 + 15x - 17 = 0

Factor: (2x - 2)(x + 17/2) = 0

=> 2x - 2 = 0 => x = 1, and x + 17/2 = 0 => x = - 17/2.

Only x = 1 has a real physical meaning so, the solution is x = 1, which is the width of the frame.

Answer: the widht of the frame is 1 inch.

You can check: (8 + 2) (7 + 2) = (10)(9) = 90 = area of picture + the frame.

90 - 56 = 34 which is the area of the frame.
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How many zeros are in the product of any nonzero whole number less than 10 and 500
worty [1.4K]

Answer:

If the non-zero whole number is even, then there are 3 zeroes

If the non-zero whole number is odd, then there are 2 zeroes

Step-by-step explanation:

* <em>Lets explain the information in the problem</em>

- Whole numbers are positive numbers, including zero, without

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- The product of any nonzero whole number less than 10 and 500

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# 1 × 500 = 5 × 100 ⇒ 2 zeros

# 2 × 500 = 2 × 5 × 100 = 10 × 100 ⇒ 3 zeros

# 3 × 500 = 3 × 5 × 100 = 15 × 100 ⇒ 2 zeros

# 4 × 500 = 2 × 2 × 5 × 100 = 2 × 10 × 100 ⇒ 3 zeros

# 5 × 500 = 5 × 5 × 100 = 25 × 100 ⇒ 2 zeroes

# 6 × 500 = 2 × 3 × 5 × 100 = 3 × 10 × 100 ⇒ 3 zeros

# 7 × 500 = 7 × 5 × 100 = 35 × 100 ⇒ 2 zeroes

# 8 × 500 = 2 × 2 × 2 × 5 × 100 = 4 × 10 × 100 ⇒ 3 zeros

# 9 × 500 = 3 × 3 × 5 × 100 = 45 × 100 ⇒ 2 zeros

- From all answers above:

# If the non-zero whole number is even (2 , 4 , 6 , 8), then there are

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# If the non-zero whole number is odd (1 , 3 , 5 , 7 , 9), then there are

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8 0
3 years ago
Help asap!
coldgirl [10]

Answer:

none

Step-by-step explanation:

i do not thinn it is any of these as 180 -120 =60 so uvt is 60 and t is 50. every triangles angles add up to 180 so 50 +60 = 110 and 180 -110 is 70. so i think the answer is 70 degrees and if i am wrong please correct me and explain how.

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sleet_krkn [62]

Answer:

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Step-by-Step Explanation:

This problem is testing your knowledge of the Order of Operations. Here is the correct order:

Exponents (inside parenthesis)- There are no exponents for you to solve in this expression, so just ignore this step for now. (example: (4 + 2²) --> (4 + 4))

Parenthesis (from left to right)- In this case, you would solve the expressions inside the parenthesis <em>first</em> because there are no exponents.

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Here is the problem worked out in steps in case you are confused:

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Step 2: Multiplication

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Step 3: Addition

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(Note: '3 + (-12)' could also be written as '3 - 12', making it a subtraction instead of an addition)

Hope this helps!

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