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3 years ago

Find the value of this expression if x=9 x2 + 6 / x - 6

Mathematics

2 answers:

rjkz [21]3 years ago

7 0

Answer:

I think the answer would be 24/3

Step-by-step explanation:

if x = 9

(9)2 + 6 / x - 6

18 + 6 = 24

24 / x - 6

24 / (9) - 6

(9) - 6 = 3

24 / 3 = 8 / 1

Hope I helped sweetie

GREYUIT [131]3 years ago

3 0

Answer:

87/3

Step-by-step explanation:

Here we are given the expression:

$\frac{x^{2}+6}{x-6}$

Now we have to find the value of this expression when x equals 9.

So plugging the value of x as -9 in the given expression:

$\frac{x^{2}+6}{x-6}$

$=\frac{(9)^{2}+6}{9-6}$

=87/3

So on evaluating we get the value of expression as 87/3.

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Find the circumference of the circle. Round your answer to the nearest hundredth. Use 3.14 or pi circle is 3 ft in radius

densk [106]

Answer:

18.84 feet

Step-by-step explanation:

The circumference of a circle can be found using:

c=π*d

The radius is given, but we have to find diameter. The diameter is twice the radius, or

d=2r

The radius is 3 feet. Substitute 3 in for r.

d=2*3

d=6

The diameter is 6 feet.

Now we have the diameter. We can substitute 6 in for d in the circumference formula. We can also substitute 3.14 in for pi.

c=π*d

c=3.14*6

c=18.84

The circumference is <u>18.84 feet</u>

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3 years ago

Read 2 more answers

I need help on this question

Marizza181 [45]

Answer:

(-2,1)

Step-by-step explanation:

We want the points where the function is greater than zero

Looking at the function it is between the x intercepts

The x intercepts ares -2 and 1

-2 <x<1 is when y >0

We want interval notation

(-2,1)

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2 years ago

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kogti [31]

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shusha [124]

Answer:

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Step-by-step explanation:

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2 years ago

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Dmitry_Shevchenko [17]

<h2>✒️VALUE</h2>

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2 years ago