<img src="https://tex.z-dn.net/?f=%282bsqrt4%29%20%5Csqrt%7B%20-%201%7D%20" id="TexFormula1" title="(2bsqrt4) \sqrt{

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oksano4ka [1.4K]

4 years ago

"(2bsqrt4) \sqrt{ - 1} " align="absmiddle" class="latex-formula">

Mathematics

1 answer:

morpeh [17]4 years ago

8 0

(2b^4)^(-1)=1/(2b^4)

^(-1) basically means reciprocal

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Solve by completing the square and hunt for twice the larger root. <img src="https://tex.z-dn.net/?f=x%5E%7B2%7D" id="TexFormula

vampirchik [111]

Is all you need to solve the equation or is there more to it?

6 0

2 years ago

Segment AB has and endpoint at A (2,5) and a mod point at M (4,0), find the other endpoint (B).

steposvetlana [31]

Answer:

The other endpoint B= (6, -5)

Step-by-step explanation:

Given:

One end point A= (2,5)

Mid point M = (4,0)

To Find:

The Other point =?

Solution:

According to midpoint formula, if (x1, y1) and (x2, y2) are two ends of a line then it’s midpoint is given by :

$M(x,y)= \frac{x1+ x2}{2} ,\frac{y1+ y2}{2}$

Using the above formula

$4=\frac{2+x_2}{2}$ ..................................(1)

$0=\frac{5+y_2}{2}$ ..................................(2)

Solving equation(1)

tex]8=2+x_2[/tex]

$x_2=8-2$

$x_2=6$

Solving equation(2)

$0\times 2=\frac{5+y_2}{2}$

$0=5+y_2$

$-5=y_2$

Thus $x_2=6$ and $y_2 =-5$

6 0

3 years ago

Which statement listed below illustrates the reflexive property of congruence

Vlad1618 [11]

Option D:

$\triangle K L M \cong \triangle K L M$

Solution:

Reflexive property of congruence:

<em>Reflexive property of congruence means the geometric figure is congruent to itself.</em>

Option A: If $\triangle K L M \cong \triangle P Q R \text { and } \triangle P Q R \cong \triangle S T U \text { , then } \triangle K LM\cong \triangle S T U$

From the definition of reflexive property, it is not true.

This is transitive property of congruence triangles.

Therefore it is false.

Option B: $\text { If } \triangle KL M \cong \triangle P Q R \text { , then } \triangle P Q R \cong \triangle S T U \text$

From the definition of reflexive property, it is not true.

Therefore it is false.

Option C: $\text { If } \triangle K L M \cong \triangle P Q R \text { , then } \triangle P Q R \cong \triangle K L M$

From the definition of reflexive property, it is not true.

Therefore it is false.

Option D: $\triangle K L M \cong \triangle K L M$

Here, ΔKLM is congruent to itself.

This statement illustrates the reflexive property of congruence for triangles.

Therefore, it is true.

Hence option D is the correct answer.

4 0

3 years ago

Read 2 more answers

If you answer i will givie you brainliest

Ray Of Light [21]

Answer:
Per slice it cost $0.46
So for 16 slices it will cost 7.36

5 0

3 years ago

Find the standard deviation of 21, 31, 26, 24, 28, 26

Vesnalui [34]

Given the dataset

$x = \{21,\ 31,\ 26,\ 24,\ 28,\ 26\}$

We start by computing the average:

$\overline{x} = \dfrac{21+31+26+24+28+26}{6}=\dfrac{156}{6}=26$

We compute the difference bewteen each element and the average:

$x-\overline{x} = \{-6,\ 5,\ 0,\ -2,\ 2,\ 0\}$

We square those differences:

$(x-\overline{x})^2 = \{36,\ 25,\ 0,\ 4,\ 4,\ 0\}$

And take the average of those squared differences: we sum them

$\displaystyle \sum_{i=1}^n (x-\overline{x})^2=36+25+4+4+0+0=69$

And we divide by the number of elements:

$\displaystyle \sigma^2=\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n} = \dfrac{69}{6} = 11.5$

Finally, we take the square root of this quantity and we have the standard deviation:

$\displaystyle\sigma = \sqrt{\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n}} = \sqrt{11.5}\approx 3.39$

8 0

3 years ago