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mixas84 [53]
3 years ago
15

Which figure must be a square?

Mathematics
2 answers:
Rufina [12.5K]3 years ago
5 0
A is describing either a rectangle, rhombus, or square, so that's not it. B is the same, C is also a possible rhombus, and so D is the correct answer as a square.
Mademuasel [1]3 years ago
4 0
4 right angels= A square, therefore D is correct. 
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What I’d the equation of a line that is perpendicular to -x+3y=9
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Y=3x+3

Step-by-step explanation:

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3 years ago
How do you find the area.
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For a square and rectangle it is Area=length*width
6 0
3 years ago
What is X squared +3x-70
Aleksandr-060686 [28]

Answer:

x = 7, x = -10

Step-by-step explanation:

x^2+3x-70 = 0

Use the quadratic formula.

x = \frac{-3 + \sqrt{3^2-4(1)(-70)} }{2(1)} \\x = \frac{-3 - \sqrt{3^2-4(1)(-70)} }{2(1)} \\

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You can also factor if you want - that is a faster method.

8 0
3 years ago
The following data show the scores of some students in a competition:
Dima020 [189]

The box plot that represents the data is a box plot titled "Scores of Participants" and labeled "Score" uses a number line from 10 to 35 with primary markings and labels at 10, 15, 20, 25, 30, and 35. The box extends from 13 to 27 on the number line. A line in the box is at 24. The whiskers end at 11 and 31.(second option)

<h3>Which box plot represents the data?</h3>

A box plot is used to study the distribution and level of a set of scores. The whiskers represent the minimum and maximum values.

On the box, the first line to the left represents the lower (first) quartile. The next line on the box represents the median. The third line on the box represents the upper (third) quartile. 75% of the scores represents the upper quartile.

The data arranged in ascending order : 11, 13, 23, 24, 24, 27, 31

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Third quartile = 3/4 x (7 + 1) = 6th term = 27

To learn more about box plots, please check: brainly.com/question/27215146

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6 0
2 years ago
What is the sum of the polynomials? 11x^2-5 + x+4
liraira [26]

Answer:

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Step-by-step explanation:

we have

(11x^{2} -5) +(x+4)

we know that

The sum of a quadratic equation and a linear equation will be a quadratic equation

so

Combine like terms

(11x^{2})+(x)+(-5+4)

11x^{2}+x-1

5 0
4 years ago
Read 2 more answers
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