12= 3x X 6 what is the valu of the x ?

Answer:

x ≥ 90

Step-by-step explanation:

it says 90 or higher which also means "at least 90", which means greater than or equal to 90.

Answer:

C

Step-by-step explanation:

We want to simplify the rational expression:

[tex]\displaystyle \frac{n^4-11n^2+30}{n^4-7n^2+10}[/tex]

First, we can factor both the numerator and the denominator. This yields:

[tex]\displaystyle =\frac{(n^2-6)(n^2-5)}{(n^2-2)(n^2-5)}[/tex]

Cancel like terms:

[tex]\displaystyle =\frac{(n^2-6)}{(n^2-2)}[/tex]

However, since we canceled a term from our expression, we must place restrictions in order to stay true to the original expression.

Rational expressions are undefined whenever the denominator equals 0. The denominator is (before canceling):

[tex](n^2-2)(n^2-5)=0[/tex]

Solve for n. By the zero product property:

[tex]n^2-2=0\text{ and } n^2-5=0[/tex]

Therefore:

[tex]n^2=2\text{ and } n^2=5[/tex]

By taking the square root of both sides (since we are taking an even root, it is required to have plus/minus):

[tex]n=\pm\sqrt{2}\text{ and } n=\pm\sqrt5[/tex]

Therefore, our fully simplified expression is:

[tex]\displaystyle \frac{n^2-6}{n^2-2}\, ,n\neq \pm\sqrt5, \pm\sqrt2[/tex]

Hence, our answer is C!

Answer:

See below.

Step-by-step explanation:

Sin (4π/3) = -sqrt(3)/2

Cos(4π/3) = -1/2

Answer:

5(2x+5) = 25

Step-by-step explanation:

Step-by-step explanation:

5 (2x + 5) = 25

Hope this helps!!

Answer:

Some one buys an apple that costs two dollars out of there pocket fours times.

Step-by-step explanation:

Answer:

I think the measure of arc BC is 45°.

Answer:

2/5

Step-by-step explanation:

There is an 8/20 chance that the next person will receive a window seat. You simplify that probability to get your answer. 8/20 becomes 2/5. So the answer is 2/5.

Answer (predicted):

About 0.221

Answer:

Question 2: y = -7

Question 3: All real numbers

Step-by-step explanation:

(2) - The equation has a horizontal asysmptote that is y = -7

(3) - they are all real numbers it does not stop at any point

I hope this helps!

Answer:-3x^2(9x^5-5)

Step-by-step explanation:

Step-by-step explanation:

-3x2(x2)-9x3+25x2

-3x2(x2+3x-5)

Answer:

x = 15

Step-by-step explanation:

Create and solve an equation of ratios.  We can do this because the smaller triangle and the larger one are similar.

  x          5 + x

------- = -----------

   9         9 + 3

Cross-multiplying, we get 12x = 45 + 9x,

which simplifies to 3x = 45

Solving for x, we get x = 15

Answer:

Step-by-step explanation:

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

we can find angle C  b/c the angles of a triangle always add to 180 , soo

180= C + 81 +63.5

35.5 = C

now that we have angle C and we know the Hyp we can use sin to find side g

where g = Opp and Hpy = 13.8 for this question

Sin(35.5) = Opp / 13.8

13.8*Sin(35.5) = Opp

8.0137 = Opp

g = 8.0137

next they ask for the area of the biggest triangle  ABC ( there are two smaller ones when you use D )

we can use 1/2 * base * height , but we don't know the base yet, even thou we do know the height.  

we can solve for line segment CD and DB and then add them for the side a .. or the base of the biggest triangle sooo.. CD = adj

Cos(35.5) = Adj / 13.8

13.8*Cos(35.5) = Adj

11.234794 =Adj

now solve for DB using cos again but with the other smaller triangle where  Adj = DB now

Cos(63.5) = Adj / 8.9

8.9*Cos(63.5) = Adj

3.971160

add these two Adjs together to get the total  'a' side

15.205954

now plug in side a as the base and g as the height of our biggest triangle

Area = 1/2 * 15.205954 * 8.0137

Area = 60.9159

rounded to 2 sig figs

Area = 60.92   :)   hope you get an "A"    :P

Answer:

84, -6

Step-by-step explanation:

y= -x+84

y= x^2+(-6)

The system of equations used to find the value of x is:

y = -x + 84

y = x² - 6

Let x represent the first number and y represent the second number.

The sum of the two numbers is 84, hence:

x + y = 84

y = -x + 84      (1)

The square of the first number is 6 more than the second number. Hence:

x² = 6 + y

y = x² - 6     (2)

The system of equations used to find the value of x is:

y = -x + 84

y = x² - 6

Find out more at: https://brainly.com/question/21105092

Answer: yes

Step-by-step explanation: because it can be a possibility of how much the m members gave money to you

Answer:

have you tried to use the tutor feature on this app, or ask someone in your family or someone in your school?

Answer:

a = 3.4641 = 2√3

Answer:

67.5 in³

Step-by-step explanation:

Given that :

Volume 1 = 540 in³

Volume 2 of similar shape = x ; if the scale factor = 1/2

Volume of a shape = length * width * height)

The scale factor = 1/2

Volumetric factor = 1/2 * 1/2 * 1/2 = 1/8

Hence, the volume of similar sculpture will be :

540 in³ * 1/8 = 67.5 in³

113.1 is the answer

I think That should be correct

Answer:

79°

Step-by-step explanation:

its a right angled triangle so the unknown is 90°

180 - (90 + 11)

Answer:

48

Step-by-step explanation:

First, we find 20% of 60. That is 12. Then we subtract 12 from 60, making 48.

Answer:

no no no no you just can't ggfgrgrgtghfhththhehfhrhrhthgtvtbth had to get 20 words

Answer:

6

Step-by-step explanation:

1,500/25= 60

Now your gonna do

90

Answer:

the answer would be 5(10-7x)

Step-by-step explanation:

factors 5 out of 50-35x

hope this helps.

correct me if I'm wrong  

have a good afternoon.

Answer

2(8a+5)

Step-by-step explanation: