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3 years ago

Which pair of expressions is equivalent?

Mathematics

1 answer:

riadik2000 [5.3K]3 years ago

4 0

You’re answer is a
Please mark brainliest

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Which ordered paired IS NOT a solution of y = 3x - 8

vazorg [7]

2,-2 seems to be the answer

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3 years ago

Area models 6437 divide 5

Yanka [14]

Answer:

1,287.4

Step-by-step explanation:

6,437/5=1,287.4

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3 years ago

Please tell me if # 6 and 7 is correct

lesantik [10]

#6 is incorrect
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3 years ago

If the diagonal of a square is approximately 12.73, what is the length of its sides?

Alja [10]

Answer:

The length of the sides of the square is 9.0015

Step-by-step explanation:

Given

The diagonal of a square = 12.73

Required

The length of its side

Let the length and the diagonal of the square be represented by L and D, respectively.

So that

D = 12.73

The relationship between the diagonal and the length of a square is given by the Pythagoras theorem as follows:

$D^{2} = L^{2} + L^{2}$

Solving further, we have

$D^{2} = 2L^{2}$

Divide both sides by 2

$\frac{D^{2}}{2} = \frac{2L^{2}}{2}$

$\frac{D^{2}}{2} = L^2$

Take Square root of both sides

$\sqrt{\frac{D^{2}}{2}} = \sqrt{L^2}$

$\sqrt{\frac{D^{2}}{2}} = L$

Reorder

$L = \sqrt{\frac{D^{2}}{2}}$

Now, the value of L can be calculated by substituting 12.73 for D

$L = \sqrt{\frac{12.73^{2}}{2}}$

$L = \sqrt{\frac{162.0529}{2}}$

$L = \sqrt{{81.02645}$

$L = 9.001469325$

$L = 9.0015$ (Approximated)

Hence, the length of the sides of the square is approximately 9.0015

7 0

3 years ago

What is the first quartile of this data set? {6, 47, 49, 15, 43, 41, 7, 36}

stepladder [879]

<span>The first quartile is the same as the median of the data which are less than the overall median. Same as the 25th percentile.
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I hope my answer has come to your help. God bless and have a nice day ahead!

5 0

3 years ago