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3 years ago

Look at the figure. How many different labeled rays are shown?

Mathematics

1 answer:

Liula [17]3 years ago

6 0

Answer:

10 rays

Step-by-step explanation:

Given in the picture is a straight line extending on both sides with points marked on it as A, B, C, D and E

To find out the rays

The rays are

AB, BC, CD, DE

AC, BD, CE

AD, BE

Hence there are in total 10 rays

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What is <br><img src="https://tex.z-dn.net/?f=f%284%29%20%3D%20%20%5Csqrt%7Bx%20%7B%7D%5E%7B2%7D%20%7D%20%20-%205" id="TexFormul

dexar [7]

<h3>Solution:</h3>

$f(x) = \sqrt{ {x}^{2} } - 5 \\ = > f(4) = \sqrt{ {(4)}^{2} } - 5 \\ \: \: \: \: \: \: \: \: \: \: = \sqrt{16 } - 5 \\ = 4 - 5 \\ = - 1 \\ or \\ = - 4 - 5 \\ = - 9$

<h3>Answer:</h3>

-1 or -9

<h3>Hope it helps</h3>

ray4918 here to help

3 0

2 years ago

a half of whats johns age was 4 years ago is equal to one third of what will be in 5 years time. how old is john now?

Leona [35]

Let x = John's age now

half of what johns age was 4 years ago: (1/2)(x-4)

is equal to one third of what it will be in 5 years time: (1/3)(x+5)

(1/2)(x-4) = (1/3)(x+5)

3(x-4) = 2(x+5)

3x - 12 = 2x + 10

8 0

2 years ago

Solve for x. Assume that lines which appear tangent are tangent.

NeX [460]

Answer:

x=2

Step-by-step explanation:

The angle formed by two tangents intersecting outside of a circle is half the difference of the intercepted arcs.

This implies that:

$55=\frac{1}{2}(116x+3-(180-55))$

We need to simplify this ad solve for x to get:

$110=(116x+3-125)$

Group the similar terms to get:

$110-3+125=116x$

232=116x

Divide by 116 to get:

x=2

8 0

3 years ago

Please Help!!! . . . . .

Ede4ka [16]

PEMDAS. parenthesis, exponents, multiple or divide (whichever come first from left to right), add or subtract (whichever comes first from left to right)

So first do stuff in parenthesis.
Then do divide because thats next on the list and it happens earlier than the multiply one.

So, A

8 0

2 years ago

Which of the following expressions could be interpreted as "a number times negative seven added to five equals two"?

masha68 [24]

Answer:

5-7 x = 2

Step-by-step explanation:

a number times negative seven added to five equals two

7 0

3 years ago

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