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Viktor [21]
3 years ago
8

Why is y=-9x proportional?

Mathematics
1 answer:
Triss [41]3 years ago
7 0
Y = -9x is proportional because its in the format y = kx
if you graph this equation youll see that it is a straight line that passes through the origin

i hope this helps!!
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Can someone help me with this please? I'll give you brainliest :)
andreev551 [17]

Step-by-step explanation:

(2*5)*4 = 10*4 = 40

2*(5*4) = 2*20 = 40

4 0
3 years ago
What would be the opposite definition of a circle ?? Helpp
vesna_86 [32]

Answer: An opposite definition would be "A shape with a set of points that DOES NOT have the same distance from a given point."

Step-by-step explanation: No need for step-by-step explanations.

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which functions have a range of all real numbers ? check all that apply. A. y=csc x B. y=sec x C. y=tan x D. y= cot x
Natalka [10]

None of these. All of these functions are defined as ratio of trigonometric functions.

Trigonometric functions have infinite zeroes, so when you put them in the denominator, they lead to infinitely many points of ill-definition.

Specifically, we have:

\csc(x) = \dfrac{1}{\sin(x)}

which is undefined at

\sin(x)=0\iff x=k\pi, k\in\mathbb{Z}

\sec(x) = \dfrac{1}{\cos(x)}

which is undefined at

\cos(x)=0\iff x=\dfrac{\pi}{2}+k\pi, k\in\mathbb{Z}

\tan(x) = \dfrac{\sin(x)}{\cos(x)}

which is undefined at

\cos(x)=0\iff x=\dfrac{\pi}{2}+k\pi, k\in\mathbb{Z}

\cot(x) = \dfrac{\cos(x)}{\sin(x)}

which is undefined at

\sin(x)=0\iff x=k\pi, k\in\mathbb{Z}

4 0
3 years ago
The first three steps of completing the square to solve the quadratic equation x^2+4x-6=0 are shown below.
ad-work [718]
Take the sqrt of both sides of <span>(x+2)^2=10:

x+2 = plus or minus sqrt(10)

Solve for x:  x = -2 plus or minus sqrt(10)

Evaluate x:  x = -2 + sqrt(10)  AND  x = -2 - sqrt(10)       (answers)

</span>
5 0
3 years ago
Find the perimeter of shape ABCDE
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Answer:

Perimeter of a triangle = 2*(length + breadth)

SO = 2*18+41

= 77 is the perimeter

6 0
3 years ago
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