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Papessa [141]
3 years ago
13

I Need Help Please with this problem

Mathematics
1 answer:
goldenfox [79]3 years ago
3 0

ΔACD is similar to ΔBCD by AA similarity theorem

AD/AC = BD/BC

x/5 = 4.2/6

6x = 21

x = 3.5

Hope this helps! ;)

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Write an expression to represent Vivian's change in elevation from -9.6 feet at the bottom of the Ferris wheel to 12.3 feet at
Effectus [21]

Answer:

<h2><em>ΔE =12.3 - (-9.6) which is equivalent to 21.9 feet </em></h2>

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Step-by-step explanation:

Give the distance covered by Vivian at the bottom of the elevation to be -9.6 feet and the distance covered by Vivian at the top of the elevation to be 12.3 feet, Vivian's change in elevation will be expressed as the difference in the elevation at the bottom and the elevation at the top.

Let the initial elevation Ei = -9.6 feet

Final elevation Ef = 12.3 feet

Change in elevation ΔE = Ef - Ei

Change in elevation ΔE =12.3 - (-9.6)

Change in elevation ΔE = 12.3 + 9.6

Change in elevation ΔE = 21.9 feet

<em>Hence the expression to represent Vivian's change in elevation from -9.6 feet at the bottom of the Ferris wheel to 12.3 feet at  the top is </em><em>ΔE =12.3 - (-9.6) which is equivalent to 21.9 feet </em>

<em />

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5 0
3 years ago
Find the equation of the line passing through (2,-1) and parallel to the line 2x-y=4
Free_Kalibri [48]

Answer:

y = 2x - 5

Step-by-step explanation:

The equation has to have the same slope -- in this case, it is 2 -- to be parallel to 2x - y = 4.

Now we have y = 2x - k.

Then, we plug in the coordinates to our new equation to solve for k.

-1 = 2(2)-k

-1 = 4-k

k = 5

So the final equation would be y = 2x - 5

6 0
3 years ago
Find an equivalent ratio for the ratio 6 to 7.<br><br> 42<br> 53<br> 13<br> 14<br> 54<br> 36<br> 49
sesenic [268]

Hi there!

Finding the equivalen ratio means to find a equivalent numbers that’s equivalent to 6 and 7 which also means a number that 6 and 7 all goes into...

6,12,18,24,30,36,42

7,14,21,28,35,42

Final Result: 42

3 0
3 years ago
I need help with this question please look at the picture
Leno4ka [110]

Answer:

18

Step-by-step explanation:

-11 - 7 = -18

|-18| = 18

6 0
3 years ago
Read 2 more answers
Integers -4-(-7)<br><br> How would I do this
alukav5142 [94]

Answer:

3

Step-by-step explanation:

-4-(-7)=

-4+(7)=

3

3 0
2 years ago
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