PLEASEEEEE HELP f(x) = 2x^2+ 6 when f (4)

For the following right triangle, find the side length x. X 9 12

Sati [7]

Answer:

it's the square root of 63 and I'd assume rounding to the tenth but I dont know how ur teacher does it.

Step-by-step explanation:

find a calculator if u have one then solve for the square root of 63. this method is called the pythagorean theorem that i used

7 0

3 years ago

1) (3+2i)-(1-6i) 2) 4i+3-6+i-1 3) 5i(3-2i) 4) (5+3i)(2-3i) 5) (2+i)(2-i)

lutik1710 [3]

Answer:

Step-by-step explanation:

1) (3 + 2i) - (1 - 6i)

3 + 2i - 1 + 6i

2 + 8i

2) 4i + 3 - 6 + i - 1

5i - 3 - 1

5i - 4

3) 5i ( 3 - 2i )

15i - 10i^2

15i - 10 ( -1 )

15i + 10

4) ( 5 + 3i ) ( 2 - 3i )

10 - 15i + 6i - 9i^2

10 - 9i - 9i^2

10 - 9i - 9 ( -1 )

10 - 9i + 9

- 9i + 19

5) ( 2 + i ) ( 2 - i )

4 - 2i + 2i - i^2

4 - i^2

4 - (-1)

5

I hope this helps!

8 0

3 years ago

Read 2 more answers

You play in a soccer tournament, that consists of 5 games. Each game you win with probability .6, lose with probability .3, and

nasty-shy [4]

Answer:

(a) The joint PMF of W, L and T is:

$P(W,\ L,\ T)={5\choose (n_{W}!\times n_{L}!\times n_{T}!)}\times [0.60]^{n_{W}}\times [0.30]^{n_{L}}\times [0.10]^{n_{T}}$

(b) The marginal PMF of W is:

$P(W=w)={5\choose n_{W}!}\times 0.60^{n_{W}}\times (1-0.60)^{n-n_{W}}$

Step-by-step explanation:

Let X = number of soccer games played.

The outcome of the random variable X are:

W = if a game won

L = if a game is lost

T = if there is a tie

The probability of winning a game is, P (W) = 0.60.

The probability of losing a game is, P (L) = 0.30.

The probability of a tie is, P (T) = 0.10.

The sum of the probabilities of the outcomes of X are:

P (W) + P (L) + P (T) = 0.60 + 0.30 + 0.10 = 1.00

Thus, the distribution of W, L and T is a appropriate probability distribution.

(a)

Now, the outcomes W, L and T are one experiment.

The distribution of n independent and repeated trials, each having a discrete number of outcomes, each outcome occurring with a distinct constant probability is known as a Multinomial distribution.

The outcomes of X follows a Multinomial distribution.

The joint probability mass function of W, L and T is:

$P(W,\ L,\ T)={n\choose (n_{W}!\times n_{L}!\times n_{T}!)}\times [P(W)]^{n_{W}}\times [P(L)]^{n_{L}}\times [P(T)]^{n_{T}}$

The soccer tournament consists of n = 5 games.

Then the joint PMF of W, L and T is:

$P(W,\ L,\ T)={5\choose (n_{W}!\times n_{L}!\times n_{T}!)}\times [0.60]^{n_{W}}\times [0.30]^{n_{L}}\times [0.10]^{n_{T}}$

(b)

The random variable W is defined as the number games won in the soccer tournament.

The probability of winning a game is, P (W) = p = 0.60.

Total number of games in the tournament is, n = 5.

A game is won independently of the others.

The random variable W follows a Binomial distribution.

The probability mass function of W is:

$P(W=w)={5\choose n_{W}!}\times 0.60^{n_{W}}\times (1-0.60)^{n-n_{W}}$

Thus, the marginal PMF of W is:

$P(W=w)={5\choose n_{W}!}\times 0.60^{n_{W}}\times (1-0.60)^{n-n_{W}}$

3 0

3 years ago

A ramp that is used to load a truck makes supplementary angles with the ground. The ramp has an incline (<1) of 28. What is t

jeka94

Answer:

Step-by-step explanation:

two angles are said to be supplementary if their sum is 180 degrees

Hence <1 + <2 = 180

Given

<1 = 28

Required

<2

Substitute into the formula

28+<2 =180

<2 = 180-28

<2= 152

Hence the measure of <2 is 152 degrees

7 0

4 years ago

Find two possible factors for the estimated product 2,800

CaHeK987 [17]

28 x 100 and 280 x 10

5 0

3 years ago