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2 years ago

10 points!!!!!!!!!!!!!!

Mathematics

2 answers:

Murrr4er [49]2 years ago

7 0

Answer:

B) x^2 - 3/ 3x

Step-by-step explanation:

As, f(x) - g(x) = x/3 - 1/x

So, x^2/ 3x - 3/ 3x

= x^2 - 3/ 3x

tino4ka555 [31]2 years ago

6 0

Answer:

Step-by-step explanation:

simplify x/3 - 1/x

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Am I correct? ( top question)

EastWind [94]

Answer:

Step-by-step explanation:

<1 and <2 are not equal to each other

Let the angle directly above angle 2 (on the right side of the line) be angle 3

<1 and <3 are corresponding angle, which means they are equal

<2 and <3 are supplementary angles since the form a line

<2 + <3 = 180

We know <1 = <3

<1 + <3 = 180

We are given <1 = 2x+12 and <2 = 3x+18

2x+12 + 3x+18 = 180

Combine like terms

5x+30 = 180

Subtract 30 from each side

5x+30-30 = 180-30

5x= 150

Divide each side by 5

5x/5 = 150/5

x=30

<1 = 2x+12

Substitute 30 in for x to find angle 1

= 2*30 +12

=60+12

= 72

6 0

2 years ago

1) reflection across y = x y W U х

Romashka-Z-Leto [24]

Step-by-step explanation:

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6 0

3 years ago

Solve the compound inequality 4 (x-5) <12 or x+2>9

arsen [322]

Answer would be -19 and your welcome :)

8 0

2 years ago

15+6X = Y(32+ 12x)-|

hammer [34]

i hope it helps please mark me as brainliest please

6 0

2 years ago

Question 4 options: Find the mean and standard deviation for a binomial distribution with 680 trials and a probability of succes

lys-0071 [83]

Answer:

Mean for a binomial distribution = 374

Standard deviation for a binomial distribution = 12.97

Step-by-step explanation:

We are given a binomial distribution with 680 trials and a probability of success of 0.55.

The above situation can be represented through Binomial distribution;

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

where, n = number of trials (samples) taken = 680 trials

r = number of success

p = probability of success which in our question is 0.55

So, it means X ~ $Binom(n=680, p=0.55)$

Now, we have to find the mean and standard deviation of the given binomial distribution.

Mean of Binomial Distribution is given by;

E(X) = n $\times$ p

So, E(X) = 680 $\times$ 0.55 = 374

Standard deviation of Binomial Distribution is given by;

S.D.(X) = $\sqrt{n \times p \times (1-p)}$

= $\sqrt{680 \times 0.55 \times (1-0.55)}$

= $\sqrt{680 \times 0.55 \times 0.45}$ = 12.97

Therefore, Mean and standard deviation for binomial distribution is 374 and 12.97 respectively.

3 0

2 years ago