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3 years ago

Solve for x A) 8 B) 10 C) -11 D) 5

Mathematics

2 answers:

hodyreva [135]3 years ago

6 0

Answer: A)8

Since the angle that equals 80 degrees is the same as the angle that equals 9x+8 that means you have 9x+8=80

9x+8=80
-8 -8
9x=72
- -
9 9
X=8

BartSMP [9]3 years ago

3 0

A) 8

80=9x+8
Minus 8 on each side
72=9x
Divide each side by 9
8=x

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Question: As their financial advisor, what part of Kyle and Linda's financial plan would you encourage them to work on and why?

ANSWER:

Their plan for protecting their assets.

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3 years ago

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9÷(-3)=what is the answer

Vera_Pavlovna [14]

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Among 8 PS4s, four are good and four have defects. Unaware of this, a customer buys 5 PS4s.

astraxan [27]

Answer:

(a) The probability of exactly 2 defective PS4s among them is 0.3125.

(b) The probability that exactly 2 are defective given that at least 2 purchased PS4s are defective is 0.3846.

Step-by-step explanation:

Let X = number of defective PS4s.

It is provided that 4 PS4s of 8 are defective.

The probability of selecting a defective PS4 is:

$P(X)=p=\frac{4}{8}=0.50$

A customer bought n = 5 PS4s.

The random variable X follows a Binomial distribution with parameters n = 5 and p = 0.50.

The probability function of a Binomial distribution is:

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

(a)

Compute the probability of exactly 2 defective PS4s among them as follows:

$P(X=2)={5\choose 2}(0.50)^{2}(1-0.50)^{5-2}=10\times0.25\times0.125=0.3125$

Thus, the probability of exactly 2 defective PS4s among them is 0.3125.

(b)

Compute the probability that exactly 2 are defective given that at least 2 purchased PS4s are defective as follows:

$P(X=2|X\geq 2)=\frac{P(X=2\cap X\geq2)}{P(X\geq2)} =\frac{P(X=2)}{P(X\geq 2)}$

The value of P (X = 2) is 0.3125.

The value of P (X ≥ 2) is:

$P(X\geq 2)=1-P(X$

Then the value of P (X = 2 | X ≥ 2) is:

$P(X=2|X\geq 2)=\frac{P(X=2)}{P(X\geq 2)}=\frac{0.3125}{0.8125} =0.3846$

Thus, the probability that exactly 2 are defective given that at least 2 purchased PS4s are defective is 0.3846.

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3 years ago

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Anna007 [38]

It is shown in the Savings Deposit Slip that Demitrius deposited 41.67$.
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12. Let yo = O. Write parametric equations to represent the path of the ballsthrown by Sami and T'Aisha given the following cond

ira [324]

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$\begin{gathered} x(t)=x_0+(v_0cos\theta)t \\ y(t)=y_0+(v_0sin\theta)t+0.5gt^2 \end{gathered}$

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