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2 years ago

Help PLSSSSS I will give you Brainlyist I suck at math it should be easy

Mathematics

2 answers:

djyliett [7]2 years ago

6 0

Answer:

Step-by-step explanation:

44 / 11 = 4

33 / 11 = 3

7 strips

laiz [17]2 years ago

4 0

Answer:

Step-by-step explanation:

bro don't call urself that....

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What error did Lucia make?

Veronika [31]

Answer:

See below

Step-by-step explanation:

She combined 3x and - 9x incorrectly

she should have gotten - 6 x not - 12 x

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2 years ago

What is 121 rounding to the nearest 100 and what is 252 rounding to the nearest 100

joja [24]

121 rounded to the nearest 100 is 100 because 121 is closer to 100 than 200.
252 rounded to the nearest hundred is 300 because 252 is closer to 300 than 100.

8 0

3 years ago

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Combine like terms in the following expression: x^2 + y ^3 + 4x^2

rjkz [21]

The answer is C. Once you add the like terms x^2 and 4x^2 you get your answer.

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3 years ago

Prove that the segments joining the midpoint of consecutive sides of an isosceles trapezoid form a rhombus.

sergiy2304 [10]

Answer:

See explanation

Step-by-step explanation:

a) To prove that DEFG is a rhombus, it is sufficient to prove that:

All the sides of the rhombus are congruent: $|DG|\cong |GF| \cong |EF| \cong |DE|$
The diagonals are perpendicular

Using the distance formula; $d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$|DG|=\sqrt{(0-(-a-b))^2+(0-c)^2}$

$\implies |DG|=\sqrt{a^2+b^2+c^2+2ab}$

$|GF|=\sqrt{((a+b)-0)^2+(c-0)^2}$

$\implies |GF|=\sqrt{a^2+b^2+c^2+2ab}$

$|EF|=\sqrt{((a+b)-0)^2+(c-2c)^2}$

$\implies |EF|=\sqrt{a^2+b^2+c^2+2ab}$

$|DE|=\sqrt{(0-(-a-b))^2+(2c-c)^2}$

$\implies |DE|=\sqrt{a^2+b^2+c^2+2ab}$

Using the slope formula; $m=\frac{y_2-y_1}{x_2-x_1}$

The slope of EG is $m_{EG}=\frac{2c-0}{0-0}$

$\implies m_{EG}=\frac{2c}{0}$

The slope of EG is undefined hence it is a vertical line.

The slope of DF is $m_{DF}=\frac{c-c}{a+b-(-a-b)}$

$\implies m_{DF}=\frac{0}{2a+2b)}=0$

The slope of DF is zero, hence it is a horizontal line.

A horizontal line meets a vertical line at 90 degrees.

Conclusion:

Since $|DG|\cong |GF| \cong |EF| \cong |DE|$ and $DF \perp FG$ , DEFG is a rhombus

b) Using the slope formula:

The slope of DE is $m_{DE}=\frac{2c-c}{0-(-a-b)}$

$m_{DE}=\frac{c}{a+b)}$

The slope of FG is $m_{FG}=\frac{c-0}{a+b-0}$

$\implies m_{FG}=\frac{c}{a+b}$

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3 years ago

Y=-1/4x+2 slope on a graph

Alex17521 [72]

In this form, slope is simply the coefficient in front of <em>x.</em> Therefore, the slope of this graph is -1/4

3 0

3 years ago

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