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kvasek [131]
4 years ago
9

In functions, what does (x+2)(x-4) equate to? ​

Mathematics
1 answer:
dimaraw [331]4 years ago
6 0

Answer:

f(x) = x^2 -2x -8

Step-by-step explanation:

(x+2)(x-4)

FOIL

first: x*x = x^2

outer: -4x

inner: 2x

last: 2*-4x = -8

Add together

x^2 +2x-4x-8

x^2 -2x -8

This is a parabola

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A dilation with a scale factor of 3. 5 and centered at the origin is applied to PQ¯¯¯¯¯ with endpoints P(2, 5) and Q(2, 1)
velikii [3]

Answer: The answer is P'(7, 17.5) and Q'(7, 3.5).

Step-by-step explanation:  Given that a line segment PQ is dilated with a scale factor of 3.5 where origin is the centre of dilation.

The end points of segment PQ are P(2, 5) and Q(2, 1).

Therefore, after dilation, the coordinates of the end points become

Thus, the coordinates of P' are (7, 17.5) and the co-ordinates of Q' are (7, 3.5).

7 0
2 years ago
What’s the correct answer for this?
Lynna [10]

Answer:

A.

Step-by-step explanation:

tan x= 6/8

usually tan θ = perpendicular / base

So,

we get perpendicular = 6, base = 8

Now using Pythagorean Theorem to find hypotenuse

hyp² = base² + Perp²

hyp² = 8² + 6²

hyp²= 64 + 36

hyp²=100

Taking sq root on both sides

hypotenuse = 10

Now

sin θ = Perpendicular / Hyp

sin x = 6 / 10

Now

cos θ = base / Hyp

cos x = 8 / 10

6 0
4 years ago
Can any experts help me??<br> Solve for x° and y°.<br> Easy for anyone.
Annette [7]

Answer:

<u>X=46</u>

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Step-by-step explanation:

4 0
3 years ago
What is one way to find the number of grams in 6 kilograms?​
gavmur [86]

Answer:

Multiply by 1000

Step-by-step explanation:

6kg equals 6000g

8 0
3 years ago
The next term of the arithmetic sequence 39,60,81,102,123.....is
Rasek [7]
It is 144 just add 21
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3 years ago
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