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4 years ago

11

Which is the definition of a ray ?

2 answers:

lora16 [44]4 years ago

8 0

Answer:

A ray is part of a line, has one fixed endpoint, and extends infinitely along the line from the endpoint.

Step-by-step explanation:

Scilla [17]4 years ago

6 0

Step-by-step explanation:

Ray has only one starting point. It is that portion of the line which has a end point and goes straight to the direction of infinity. It has no end point.

For example, Sun rays.

They originate from the sun which is the starting point and they travel to infinity.

Hence the definition of rays is:

<u>A ray is the part of the line which begins from a particular point which is known as the end point and then it extends in one particular direction endlessly.</u>

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An expression that is equivalent to 20x^4

Veronika [31]

An expression that is equivalent to $20x^4$ is 5 $x^{2}$ × 4 $x^{2}$ or 10 $x^{1}$ ×2 $x^{3}$

<u>Step-by-step explanation:</u>

We can write the equivalent expression for the given expression as,

5 $x^{2}$ × 4 $x^{2}$ = 20 $x^{2+2}$ = 20 $x^{4}$

We can add the powers of x as 2+ 2 = 4.

Since the base x is same we can add the powers as per the law of exponents as, $x^{m}$ × $x^{n}$ = $x^{m+n}$

10 $x^{1}$ ×2 $x^{3}$ = 20 $x^{1+3}$ = 20 $x^{4}$

So an expression that is equivalent to $20x^4$ is 5 $x^{2}$ × 4 $x^{2}$ or 10 $x^{1}$ ×2 $x^{3}$

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4 years ago

You burn 4 Cal/min walking and 10 Cal/min running. You walk 10 to 20 min each day and run 30 to 45 min each day. You never spend

GrogVix [38]

Answer:

I don’t know how to do the explanation but the answer is 15 min waking and 45 running. I got it right on the test

Step-by-step explanation:

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3 years ago

If kite CDEF is dilated by a scale factor of 6 with a center of dilation at the origin, what is the area of kite C'D'E'F'?

myrzilka [38]

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3 years ago

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In how many years will rupees 150 double itself at 4% S.I.?

nikitadnepr [17]

Answer:

Simple interest = PRT/100

300 = 150 x 4 x T/100

2 x 100/4 = T

Therefore T = 50 years

Hope this helps!

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4 years ago

Together,Erin and Olivia have 108 magazines. Olivia’s collection has 3 times as many magazines in it as Erin’s collection. How m

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Step-by-step explanation: the equation for this question is 108=3x+x

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3 years ago