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4 years ago

9x-6=180 What does x equal in this equation

Mathematics

1 answer:

raketka [301]4 years ago

7 0

Answer:

X=20.6666

Step-by-step explanation:

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Two triangle can be formed using given measurements

agasfer [191]

Use a projector do you have one?

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4 years ago

I need help on this ASAP!!!!!! (image attached and it's find X)

klio [65]

1/3 * x square = 16
x square =16*3
x square =48
therefore x=4 under root 3

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4 years ago

You are running a race. The probability that you win is 3/5. What is the probability that you lose at most 2 out of your 6 races

Veronika [31]

Answer:

The probability that you lose at most 2 out of your 6 races is 0.54432.

Step-by-step explanation:

We are given that you are running a race. The probability that you win is 3/5.

There are total of 6 races.

The above situation can be represented through binomial distribution;

$P(X = r) = \binom{n}{r} \times p^{r} \times (1-p)^{n-r} ; x = 0,1,2,3,.....$

where, n = number of trials (samples) taken = 6 races

r = number of success = at most 2 lost

p = probability of success which in our question is probability that

you lose a race = 1 - (3/5) = 2/5 or 0.4

Let X = Number of races lost

So, X ~ Binom(n = 6, p = 0.40)

Now, the probability that you lose at most 2 out of your 6 races is given by = P(X $\leq$ 2)

P(X $\leq$ 2) = P(X = 0) + P(X = 1) + P(X = 2)

= $\binom{6}{0} \times 0.40^{0} \times (1-0.40)^{6-0} + \binom{6}{1} \times 0.40^{1} \times (1-0.40)^{6-1} + \binom{6}{2} \times 0.40^{2} \times (1-0.40)^{6-2}$

= $1 \times1 \times 0.60^{6} + 6 \times 0.40^{1} \times 0.60^{5} +15\times 0.40^{2} \times 0.60^{4}$

= 0.54432

7 0

3 years ago

Retro Rides is a club for owners of vintage cars and motorcycles. Every year the club gets together for a ride. This year, 38 ve

alina1380 [7]

Answer: OPTION B

Step-by-step explanation:

Let's call:

c: the number of cars.

m: the number of motorcycles.

Based on the given information, you can set up the following system of equations:

$\left \{ {{c+m=38} \atop {4c+2m=104}} \right.$

You can solve it by the Elimination method:

- Multiply the first equation by -4.

- Add both equations to cancel out the variable "c".

- Solve for "m":

$\left \{ {(-4)(c+m)=38(-4)} \atop {4c+2m=104}} \right.\\\\\left \{ {-4c-4m=-152} \atop {4c+2m=104}} \right.\\-------\\-2m=-48\\m=24$

(24 motorcycles)

- Substitute m=24 into any of the original equations ans solve for "c". Then:

$c+24=38\\c=38-24\\c=14$

(14 cars)

6 0

4 years ago

Read 2 more answers

Solve 5x > 10 help this is very confusing how do i do this

Leokris [45]

Answer:

Simplify to (2,∞) or X>2

6 0

3 years ago