All categories

2 years ago

What is the intersection of line CA a and line XA?

Mathematics

1 answer:

Oduvanchick [21]2 years ago

3 0

Answer:

point A is the intersection point between XA and AC

You might be interested in

Solve by factoring<br> 3v^2-10v+3=

jolli1 [7]

$3v^2-10v+3=0\\\\\implies 3v^2 - 9v-v +3=0\\ \\\implies 3v(v-3)-(v-3)=0\\\\\implies (v-3)(3v-1)=0\\\\\implies v = 3,~~v=\dfrac 13$

8 0

3 years ago

The distribution of blood cholesterol level in the

qaws [65]

Answer: A. Mean of sampling means $=\mu=168\ Mg/dl$

Standard deviation of sampling means = $2.86\ mg/dl$

B. The probability that your sample has mean less than 165 is 0.1492 .

Given : The distribution of blood cholesterol level in the

population of young men aged 20 to 34 years is close to normal with

mean $\mu= 168$ Mg/dl and standard deviation $\sigma= 35$ mg/dl.

Sample size : n= 150

Let $\overline{x}$ sample mean values.

A. The mean and the standard deviation of the distribution of the sampling means would be :

Mean of sampling means = $\mu=168\ Mg/dl$

Standard deviation of sampling means = $\dfrac{\sigma}{\sqrt{n}}=\dfrac{35}{\sqrt{150}}$

$=\dfrac{35}{12.2474487}\\\\=2.85773803649\approx2.86\ mg/dl$

The probability that your sample has mean less than 165 would be

$P(\overline{x}$

Hence , the probability that your sample has mean less than 165 is 0.1492 .

7 0

3 years ago

What is the net price of a dress marked $80 if it is reduced by 12%?show working please

astraxan [27]

Answer: 9.6$

Step-by-step explanation:

7 0

3 years ago

(1 point) Some shrubs have the useful ability to resprout from their roots after their tops are destroyed. Fire is a particular

ziro4ka [17]

Answer:

The answer is " $0.45 \pm 0.18204$ "

Step-by-step explanation:

For the +4 sample proportion $= \frac{(7+2)}{(16+4)} = \frac{9}{20} = 0.45$

Sample percentage measurements estimated stdev

$= \sqrt{\frac{[(0.45)(1-0.45)]}{[(16+4)]}}\\\\ = \sqrt{\frac{[(0.45)(0.55)]}{[(20)]}}\\\\ = \sqrt{\frac{0.2475}{20}}\\\\= \sqrt{0.012375}\\\\=0.111$

Calculating the critical z for a=0.1, two-tailed = 1.64

Calculating the confidence interval:

$= 0.45 \pm 0.111 \times 1.64 \\\\= 0.45 \pm 0.18204$

4 0

3 years ago

Use rounding or compatible numbers to estimate the difference 192-78

pogonyaev

The answer would be 110

5 0

4 years ago