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2 years ago

The triangles shown are similar. Find x and the measure of side DE. Help pls. ?

Mathematics

1 answer:

aleksandr82 [10.1K]2 years ago

7 0

If they are similar, their sides are proportional. Compare 3/5 ratio is the same as x-4/x

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Can someone please help me with my math question!!

Lena [83]

Answer:

x(12x^2+18x)

Step-by-step explanation:

x(12x^2+18x)=12x^(3)+18x^2

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3 years ago

What is the other endpoint if one endpoint is (10,12) and the midpoint is (6,9).?

Lubov Fominskaja [6]

Answer:

$(2,\, 6)$ .

Step-by-step explanation:

Let $(x_{0},\, y_{0})$ and $(x_{1},\, y_{1})$ denote the two endpoints.

The formula for the midpoint of these two points would be:

$\displaystyle \left(\frac{x_{0} + x_{1}}{2},\, \frac{y_{0} + y_{1}}{2}\right)$ .

(Similar to taking the average of each coordinate.)

In this question, it is given that $x_{0} = 10$ whereas $y_{0} = 12$ . Substitute these two values into the expression for the coordinate of the midpoint:

$x$ -coordinate of the midpoint: $\displaystyle \frac{10 + x_{1}}{2} = 6$ .
$y$ -coordinate of the midpoint: $\displaystyle \frac{12 + y_{1}}{2} = 9$ .

Solve these two equations for $x_{1}$ and $y_{1}$ : $x_{1} = 2$ whereas $y_{1} = 6$ .

Hence, the coordinate of the other point would be $(2,\, 6)$ .

4 0

2 years ago

50 7 x + 22 x=? <br> Please help

elena55 [62]

X= 4

both of the angles are the same degrees so you figure out the difference between 50 and 22 and take that divided by 7 to get x

50-22

28/7

=4

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2 years ago

What is x-35>15? plz help

alexira [117]

Answer: x > 50

Step-by-step explanation:

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3 years ago

Which of the following graphs could be the graph of the function f(x) = x4 + x3 – x2 – x?

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The answer to your question is
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6 0

3 years ago

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