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3 years ago

What is f(x) when given the points (0,-5)

Mathematics

1 answer:

Svetradugi [14.3K]3 years ago

3 0

I think you need more detail for people to answer

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Solve (9xy+5) (8xy+7)

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It’s gonna look like that

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2 years ago

How do you find the length of a missing side when you have 2 similar angles?

Jlenok [28]

Add the angles and minus the total from 180 that will be the answer

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1 year ago

Give an example of a point that is the same distance from (3, 0) as it is from (7, 0). Find lots of examples. Describe the confi

Artist 52 [7]

Supposse that the distance from the point $(x,y)$ to the point $(3,0)$ is equal to the distance from $(x,y)$ to the point $(7,0)$ . Then, by the formula of the distnace we must have

$\sqrt{(x-3)^2 + (y-0)^2}=\sqrt{(x-7)^2 + (y-0)^2}$

cancel the square root and the $(y-0)^2$ 's, and then expand the parenthesis to obtain

$x^2 - 6x + 9 = x^2 - 14x + 49$

then, simplifying we obtain

$8x = 40$

therfore we must have

$x=5$

this means that the points satisfying the propertie must have first component equal to 5. So we can give a lot of examples of such points: $(5,0), (5,7),(5,1/2), (5,-10),...$ . The set of this points give us a straight line and the points (3,0) and (7,0) are symmetric with respect to this line.

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2 years ago

Find side x, giving your answer to 1 decimal place. 810 7 cm 40° Х

Andru [333]

Answer:

10.8

Step-by-step explanation:

By sine rule:

$\frac{x}{ \sin 81 \degree} = \frac{7}{ \sin 40 \degree} \\ \\ x = \frac{7 \sin 81 \degree}{ \sin 40 \degree} \\ \\ x = \frac{7 \times0.9876883406 }{0.6427876097} \\ \\ x = \frac{6.91381838}{0.6427876097} \\ \\ x = 10.755992 \\ \\ x \approx 10.8$

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3 years ago

X^2-4x-11=0 completing the square

yawa3891 [41]

The answers are either:

x=2+√15 or x=2−√15

Hope this helps!

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3 years ago

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