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3 years ago

For what values of x and y would ΔABC~ΔDEF? A x = 6; y = 8.4 B x = 9; y = 17.9 C x = 25; y = 14 D x = 4; y = 5.6

Mathematics

1 answer:

sdas [7]3 years ago

4 0

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Solve the system of equations by substitution<br> 5x +y = 36<br> y = 4x

natali 33 [55]

Step-by-step explanation:

The answer is mentioned above.

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3 years ago

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Dmitrij [34]

Answer:

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2 years ago

100 POINTS! I REALLY NEED TO GET THIS CORRECT! Factor the quadratic trinomial.

Assoli18 [71]

The factors of the equation $x^2-3x-18$ are $(x-6)(x+3)$

Step-by-step explanation:

We need to factor the quadratic trinomial. $x^2-3x-18$

We will do factorization by braking the middle term such that adding those number we get middle term (-3x) and multiplying those numbers we get (-18x^2)

Solving:

$x^2-3x-18\\=x^2-6x+3x-18\\=x(x-6)+3(x-6)\\=(x-6)(x+3)$

So, the factors of the equation $x^2-3x-18$ are $(x-6)(x+3)$

Keywords: Finding Factors of Quadratic Equation

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4 years ago

Jim is painting the inside of a circular helicopter pad. How many cans of paint would he need if the pad is 50 feet across and e

Inessa [10]

Answer:

Number of can needed to paint inside of the circular helicopter pad = 1

Step-by-step explanation:

The circular pad is given to be 50 feet across.

⇒ Circumference of the circular pad = 50 feet

⇒ 2π·r = 50

⇒ π·r = 25

⇒ r = 7.96 feet

Now, Area of the circular pad = π·r²

⇒ Area = 3.14 × 7.96²

⇒ Area = 198.96 square feet

Now, one can of paint covers 200 feet² area of the pad

Hence, 198 feet² area can also be painted by using one can.

Therefore, number of can needed to paint inside of the circular helicopter pad = 1

7 0

3 years ago

find the coordinates of w' after a dilation of 3/2 about the origin. write your answer in the form of (a,b). The coordinates for

oksano4ka [1.4K]

Answer:

(-3, 0)

Step-by-step explanation:

Dilation means that the position of the point is scaled up or down. Simply multiply the coordinates by the scale to get the new position.

w' = 3/2 w

w' = (3/2 × -2, 3/2 × 0)

w' = (-3, 0)

5 0

4 years ago