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Elis [28]
3 years ago
6

Write An algebraic expression with the constant 7 and thee variable y

Mathematics
2 answers:
Snowcat [4.5K]3 years ago
7 0
Y+7
Y is the variable and 7 is the constant.
Verdich [7]3 years ago
6 0
X - 7, x is the variable and 7 is the constant.

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1. A test-tube has a diameter of 3cm. How many turns would a piece of thread of length
Alex Ar [27]

So if we think of a test tube, it looks sort of like a cylinder. This means that its cross-section would be a circle. To find out how many turns a piece of thread would make around the test tube, we need to find the circumference of the test tube, then divide the length of the string by the circumference.

Step 1) Find the circumference

C = pi x diameter

C = 3.14 x 3

C = 9.42

Step 2) Divide the length of the string by the circumference

90.42 / 9.42 = 9.5987

The string would make approximately 9.60 turns around the test tube.

Hope this helps!! :)

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3 years ago
Fifteen students were asked how much money they spent to the nearest whole dollar, in the school cafeteria one week. Their respo
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Answer:

Check Explanation.

Step-by-step explanation:

The histogram displaying the amount spent by the 15 kids in the school cafeteria in one week is shown in the attached image to this answer.

Hope this Helps!!!

8 0
3 years ago
Every number other than 0 has a multiplicative inverse.
Gala2k [10]

Answer:

A multiplicative inverse of a real number x is a real number y such that xy = 1. ... ((NOT GOOGLING DEF))

Step-by-step explanation:

"For every real number x, if x 0, then there is a real number y such that xy = 1.”

3 0
2 years ago
Pull displays his sports trophies on shelves in his room. he has 5 trophies on each of 3 shelves and 2 trophies on another shelf
Vesnalui [34]
5 + 5 + 5 = 15
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5 0
3 years ago
Determine if the statement below is always true, sometimes true, or never true. When x is a
andrew11 [14]

Answer:

Sometimes

Step-by-step explanation:

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  • negative;
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If x is positive, then -3x is negative (multiplying positive number by -3 you get negative number).

So, the statement "When x is a nonzero integer, the quantity -3x will be negative" is sometimes true.

7 0
3 years ago
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