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3 years ago

Which of the following is equal to the rational expression when x does not equal 3 or -10? (x+5)(x-3)/(x-3)(x+10)

1 answer:

7 0

For an expression to have a rational equivalent when solved, the denominator should not be equal to 0. If the denominator is equal to zero, the expression becomes indefinite or undetermined. This is the reason for the restriction of the use of x being equal to 3 or -10.

In the given above, we can see that the expression x-3 appears both in the numerator and denominator. Hence, this can be cancelled. We are then left with the expression,
(x + 5) / (x + 10)

Therefore, the answer to this item is letter C.

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PLEASE HELP

rodikova [14]

Answer: B. 1/2(y - 116) = 64

Step-by-step explanation:

Since, we know that,

The angle formed by two tangent = $\frac{1}{2}(\text{Difference of intercepted Arcs} )$

= $\frac{\text{major arc - minor arc}}{2}$

Here, Major arc = y°

Minor arc = 116°

And, Angle made by two tangents YX and YZ,

$m\angle XYZ = \frac{\text{y - 116}}{2}$

$64 = \frac{\text{y - 116}}{2}$ ( because, $m\angle XYZ = 64^{\circ}$ )

⇒ $\frac{\text{y - 116}}{2} = 64$

Which is the required equation to find y, the measure of XWZ.

Thus, Option B is correct.

8 0

3 years ago

Read 2 more answers

F(x) =8+2x and g(x) =1/2x the value of f/g(5)

Alona [7]

Hello :
<span> (f/g)(5) = (f(5))/(g(5)) = (-8+2(5))/((1/2))(5) = 2/(5/2)
</span>(f/g)(5) = 4/5

7 0

3 years ago

One questions here! Please help! (:

Hatshy [7]

$\cfrac{c^{-6}d^4}{c^{-16}d^{14}} = \cfrac{c^{16}d^4}{c^{6}d^{14}} = \cfrac{c^{10}}{d^{10}}$

7 0

3 years ago

Each side of a pentagon is 10 cm greater than the previous side. If the perimeter of this pentagon is 500 cm, find the lengths o

Anton [14]

Answer:

(I'll leave cm out to save space and time in the answer)

the perimeter is 500, there are 5 sides. so on average a side will be 100.

that's already the important key idea.

it's indeed 100 for the third side, the second will be 10 less, the fourth 10 more (making the 2and and the 4th side 200 in sum, and therefore still 100 on average).

repeat this for the 1. and 5. side and we get:

100

110

120

8 0

3 years ago

Find the value of X for the figure given the perimeter 74+ 7m. Length is 5m + 8 and width is 3m +2

gogolik [260]

To find m we add the dimensions and equalise it to the answer first:
5m + 8 + 5m + 8 + 3m + 2 + 3m + 2 = 74 + 7m
Now we simplify
16m + 20 = 74 + 7m
Minus 20 from both sides
16m = 54 + 7m
Minus 7m from both sides
9m = 54
Divide by 9 from both sides
M=6
Plz give me brainliest answer and hope it helps!

8 0

2 years ago