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3 years ago

8x + 2 Solve for x. 70° 60°

Mathematics

2 answers:

harina [27]3 years ago

3 0

Answer:

B. 6

Step-by-step explanation:

8(6) + 2

48+2 =50

70 + 60 + 50 = 180

Zina [86]3 years ago

3 0

The answer to you’re question is B) 6

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Which ratio is not equivalent to 15/18?<br> A: 25/30<br> B: 90/105<br> C: 60/72<br> D: 35/42

professor190 [17]

Answer:

Step-by-step explanation:

Both of the two numbers should equal the same amount when dividing.

For example, in A

25÷15=1.666...

30÷18=1.666...

Both of these answers are the same so that means that 25/30 is equivalent to 15/18

When you're dividing B though, they don't equal the same amount

90÷15=6

105÷18= 5.833...

that means that 90/105 does NOT equal 15/18

good luck

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8 0

3 years ago

PLEASE HELP

Ksivusya [100]

Answer:

Option (1)

Step-by-step explanation:

Coordinates of the vertices of a quadrilateral WXYZ drawn in the figure are,

W(-1, 4), X(2, 2), Y(0, -1), Z(-3, 1)

Length of a segment having ends as $(x_1, y_1)$ and $(x_2, y_2)$ is represented by,

d = $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Length of WX = $\sqrt{(-1-2)^2+(4-2)^2}$

= $\sqrt{9+4}$

= $\sqrt{13}$

Length of XY = $\sqrt{(2-0)^2+(2+1)^2}$

= $\sqrt{13}$

Length of YZ = $\sqrt{(0+3)^2+(-1-1)^2}$

= $\sqrt{13}$

Length of ZW = $\sqrt{(-1+3)^2+(4-1)^2}$

= $\sqrt{13}$

Slope of side WX ( $m_1$ ) = $\frac{y_2-y_1}{x_2-x_1}$

= $\frac{4-2}{-1-2}$

= $-\frac{2}{3}$

Slope of side XY ( $m_2$ ) = $\frac{2+1}{2-0}$

= $\frac{3}{2}$

By the property of perpendicular lines,

$m_1\times m_2=-1$

$(-\frac{2}{3})(\frac{3}{2})=-1$

therefore, WX and XY are perpendicular.

Slope of YZ ( $m_3$ ) = $\frac{-1-1}{0+3}=-\frac{2}{3}$

$m_2\times m_3=(\frac{3}{2})\times (-\frac{2}{3})=-1$

Therefore, XY ⊥ YZ

Similarly, we can prove YZ ⊥ ZW.

Therefore, quadrilateral WXYZ is a SQUARE.

Option (1) will be the answer.

7 0

3 years ago

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DerKrebs [107]

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KIM [24]

Do 2.40 times .3 (you turn the percentage into a decimal and move it forward 2 spaces) and you get .72 so you subtract that from 2.40 and get 1.68

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1+1=? giving free points

sukhopar [10]

Answer:

The answer is

Step-by-step explanation:

Hope this helps....

Have a nice day!!!!

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