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Nataly_w [17]
3 years ago
8

The work of a student to solve a set of equations is shown:

Mathematics
2 answers:
11Alexandr11 [23.1K]3 years ago
6 0
The student made error in step 2 because negative multiplied by positive is negative. Also negative multiplied by negative is positive
timama [110]3 years ago
5 0

Answer:

The answer is C. Step 2

Hope This Helps!

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Please help, my brain just sucks rn. The area of a rectangle is 93.6 square inches. If the length of one of its sides is 5.2 in.
snow_tiger [21]

46.4 inch

Step-by-step explanation:

Area=l×b

93.6 =5.2×b

93.6/5.2 =b

So b= 18

Again,

p=2(l+b)

p=2(18+5.2)

p= 2×23.2

p=46.4

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3 years ago
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shusha [124]

Answer:

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Step-by-step explanation:

5 0
3 years ago
Find the value of this expression if X = -1 and Y = -5 xy over -6
Thepotemich [5.8K]
\frac{xy}{-6} = \frac{(-1)(-5)}{-6} = \frac{5}{-6} = -\frac{5}{6}
4 0
3 years ago
A room is in the shape of a cube with 6.2-foot edge lengths.
Veronika [31]
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Given information
---------------------------------------
It is a cube
Length = 6.2 ft

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Find one surface
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6.2 x 6.2 = 38.44 ft²

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Find all 6 surfaces
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38.44 x 6 = 230.64 ft²

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Answer: 230.64 ft²
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3 0
3 years ago
The area of a square is 9 centimeters squared (cm^2) If the sides of the square are doubled in length, what is the new area, in
Mice21 [21]

Answer:

The question says area of a square = 9 cm squared.

And they said if the sides are doubled in length what is the new length

so new length = 9 cm^2 × 9 cm^2

which should give you 81cm^2

therefore your answer should be = C

7 0
3 years ago
Read 2 more answers
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