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katen-ka-za [31]
3 years ago
9

What is the perimeter of a rectangle length 86ft width 9ft 10inches?

Mathematics
1 answer:
kondor19780726 [428]3 years ago
3 0

The perimeter is 166.9 ft.

Convert feet to inches to make it easier to calculate. The formula to find the perimeter is... 2(w+h)

once you get your answer, convert inches back to feet.

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Determine the standard form of the equation of the line that passes through (6,0) and (2,-7).
lesya [120]

Answer:

-7x + 4y = +42

Step-by-step explanation:

Going from point (2, -7) to point (6, 0), x increases by 4 and y increases by 7.  Thus, the slope of the line in question is m = 7/4.

Starting from the equation y = mx + b, and subbing (7/4) for m, 6 for x and 0 for y, we get:

0 = (7/4)(6) + b.  Then b = 42/4, or 21/2.  Thus, we now have y = (7/4)x + 21/2.

We must put this into "standard form."  Multiplying all three terms by 4, we get:

4y = 7x + 42.  Rearranging these terms to fit the "standard form" equation Ax + By = C, we get:

-7x + 4y = +42

5 0
3 years ago
How can you rewrite the expression (8-5i)^2 in the form of a +bi
olchik [2.2K]
\bf \textit{recall that }i^2=-1\\\\
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(8-5i)^2\implies (8-5i)(8-5i)\implies 64-40i-40i+(5i)^2
\\\\\\
64-80i+(5^2i^2)\implies 64-80i+(25\cdot -1)\implies 64-80i+(-25)
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64-80i-25\implies 39-80i
3 0
3 years ago
A mouse population is 25,000. It is decreasing in size at a rate of 30% per
KengaRu [80]

Answer:

y= 12,800 mice

Step-by-step explanation:

y= 25,000 (1-.2)t

y= 25.000 (.8)3

3 0
3 years ago
-13d-8=-8-6d equation
olga nikolaevna [1]
Well, for -6d to equal -13d, d would have to be 0 to satisfy this equation
4 0
4 years ago
Read 2 more answers
I will mark brainliest
matrenka [14]
A: 2,5
B: 3,1
C: -2,4



Explanation:


When you’re moving right and up you would add however many numbers you moved up to the original points because going right on a graph makes the X a larger number, and going up makes it larger.
5 0
3 years ago
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