All categories

3 years ago

Plz help me

Mathematics

1 answer:

solmaris [256]3 years ago

7 0

Answer:

Rotate Figure L 135 degrees counterclockwise around the point of intersection of the arms. Reflect across the right arm

Step-by-step explanation:

You might be interested in

Twice the quotient of a number and -24 is -8 Find the number.<br><br> The number is ________.

Klio2033 [76]

Answer: The number should be 6

4 0

2 years ago

Y-5=-1/2(x+7) (find the slope)

sashaice [31]

It's the slope-point formula:

$y-y_1=m(x-x_1)$

We have:

$y-5=-\dfrac{1}{2}(x+7)$

Therefore, the slope $m=-\dfrac{1}{2}$

7 0

4 years ago

Read 2 more answers

(Uniform) Suppose X follows a continuous uniform distribution from 4 to 11. (a) Write down the PDF of X. (b) Find P(X ≤ 7). Roun

love history [14]

Answer:

a) $f(x)= \frac{1}{11-4}= \frac{1}{7}, 4 \leq x \leq 11$

b) $P(X\leq 7) = F(7) = \frac{7-4}{11-4}= 0.4286$

c) $P(5 < X \leq 7)= F(7) -F(5) = \frac{7-4}{7} -\frac{5-4}{7}= 0.2857$

d) $P(X >5 | X \leq 7)$

And we can find this probability with this formula from the Bayes theorem:

$P(X >5 | X \leq 7)= \frac{P(X>5 \cap X \leq 7)}{P(X \leq 7)}= \frac{P(5$

Step-by-step explanation:

For this case we assume that the random variable X follows this distribution:

$X \sim Unif (a=4, b =11)$

Part a

The probability density function is given by the following expression:

$f(x) = \frac{1}{b-a} , a \leq x \leq b$

$f(x)= \frac{1}{11-4}= \frac{1}{7}, 4 \leq x \leq 11$

Part b

We want this probability:

$P(X \leq 7)$

And we can use the cumulative distribution function given by:

$F(x) = \frac{x-a}{b-a}= \frac{x-4}{11-4}$

And replacing we got:

$P(X\leq 7) = F(7) = \frac{7-4}{11-4}= 0.4286$

Part c

We want this probability:

$P(5 < X \leq 7)$

And we can use the CDF again and we have:

$P(5 < X \leq 7)= F(7) -F(5) = \frac{7-4}{7} -\frac{5-4}{7}= 0.2857$

Part d

We want this conditional probabilty:

$P(X >5 | X \leq 7)$

And we can find this probability with this formula from the Bayes theorem:

$P(X >5 | X \leq 7)= \frac{P(X>5 \cap X \leq 7)}{P(X \leq 7)}= \frac{P(5$

7 0

3 years ago

Which expressions are equivalent to the one below? check all that apply :)

svlad2 [7]

Since 5=15/3

5^x = (15/3)^x = 15^x / 3^3

Choices A and D

4 0

3 years ago

The price of pakets of tea ir same as the price of 4 paket.How many packets of tea ate required to exchange 20 packets of coffee

Veronika [31]

Answer:

The answer I got was 16 if your using addition, but 5 if using multiplication

Step-by-step explanation:

5 0

3 years ago