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777dan777 [17]
3 years ago
8

6x + 9 = 75 jdjdkdjdjdndndnddjdk

Mathematics
2 answers:
gregori [183]3 years ago
6 0

Answer:

x =11

Step-by-step explanation:

6x + 9 = 75

Subtract 9 from each side

6x + 9-9 = 75-9

6x = 66

Divide each side by 6

6x/6 = 66/6

x = 11

xxMikexx [17]3 years ago
3 0
X = 11

6x11=66

66 + 9 = 75
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aivan3 [116]

Answer:

23

Step-by-step explanation:

8 0
3 years ago
PLEASE ANSWER QUICKLY
Luba_88 [7]
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6 0
3 years ago
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Can someone please help me with these math problems ASAP?!<br> Thanks in advance! ;)
Mamont248 [21]

Answer:

11) Here given Function,

f(x) = \sqrt{2x-11}

And, g(x) = -|0.1|x+5

For f(x) = g(x)

\sqrt{2x-11}=-|0.1|x+5

2x-11=(-|0.1|x+5)^2

2x-11=0.01x^2 - 10|0.1|x+25

2x=0.01x^2 - 10|0.1|x+25+11

2x=0.01x^2 - 10|0.1|x+36

0.01x^2 - 10|0.1|x - 2x+36=0

When we solve this equation,

We found,

 x = 12.5227 ≈ 12.53

Thus, the required solution is, x = 12.53

12) Here the height of rocket A in x second,

f(x) = -16x^2+74x+9

And, The height gain by the rocket B in x seconds,

g(x) = -16x^2+82x

If at x seconds both A and B gain the same height,

That is, f(x) = g(x)

⇒ -16x^2+74x+9= -16x^2+82x

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4 0
3 years ago
Which combination of three side lengths will NOT form a triangle?
SpyIntel [72]

Answer:

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6+5= 11 < 9

9+5 =14 > 6

Explanation :

because the side length of triangle does not obey triangle inequality theorem.

The triangle inequality theorem:

The sum of the lengths of any two sides of a triangle is greater than the length of the third side.

4 0
3 years ago
A solid cylinder of radius 7cm is 10cm long.find it's total surface area
Anton [14]

Answer:

C.  238π  cm^3.

Step-by-step explanation:

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= 2 π 7^2 + 2π 7 * 10

= 98π + 140π

= 238π  cm^3.

7 0
3 years ago
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