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mafiozo [28]
3 years ago
6

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 volume of the prism:
Margarita [4]

Answer:

168 units cubed

Step-by-step explanation:

so we know it's base times height right

so like identifying the base doesn't matter as long as you're smart enough to figure how to calculate then whatever lol

so like the base let's just say it's the triangle because that's probably what you're struggling on

so the base of the triangle is like what lol 6 * 8 / 2 = 48 / 2 = 24 so then you have the base multiply by the third dimension

24 * 7 = 140 + 28 = 168 so yeaaaaaaa and it's cubed because it's three dimensional

5 0
3 years ago
Read 2 more answers
Given a circle with measures of (C, d, and r) and a circle with measures of (C', d', and r'), what is C if
Black_prince [1.1K]
C'=1.5
c/c'=d/d'
c/1.5=8
c=12
hope that helps :)

7 0
3 years ago
Find the exact value by using a half-angle identity.<br><br> tan seven pi divided by eight
murzikaleks [220]

9514 1404 393

Answer:

  1 -√2

Step-by-step explanation:

  \tan(x/2)=\dfrac{1-\cos(x)}{\sin(x)}\\\\\tan\left(\dfrac{1}{2}\cdot\dfrac{7\pi}{4}\right)=\dfrac{1-\cos\dfrac{7\pi}{4}}{\sin\dfrac{7\pi}{4}}=\dfrac{1-\dfrac{1}{\sqrt{2}}}{-\dfrac{1}{\sqrt{2}}}=\boxed{1-\sqrt{2}}

tan(7π/8) = 1 -√2

7 0
3 years ago
What is 9x-5-8+x= what
Elanso [62]
Hi there!

First you simplify.

Simplified = 9x+(−5)+(−8)+x

Then you combine the like terms.

<span><span><span><span><span>9x</span>+(<span>−5)</span></span>+(<span>−8)</span></span>+x (*-5 and -8 are like terms) (9x and x are like terms)

</span></span><span><span><span>Combined it's~ (<span><span>9x</span>+x</span>)</span>+<span>(<span><span>−5</span>+<span>−8</span></span>)

</span></span></span><span><span><span>Solve and that comes to 10x</span>+<span>−<span>13 which is your answer. :)

Hope this helps. 

</span></span></span></span>
3 0
3 years ago
Negative x minus 5 equals negative 11 what is x?<br> -x-5=-11
sergejj [24]
-x - 5 = -11

add 5 to both sides

-x - 5 + 5 = -11 + 5

-x = -6

x = 6
6 0
3 years ago
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