PLS HELP 10 POINTS THANKS FAMMMM~

Mathematics

1 answer:

scoundrel [369]3 years ago

4 0

Hello there,

The first graph show's (0,-3)

The second graph show's (0,-2)

Hope this helps

~HotTwizzlers

You might be interested in

Start with x, subtract 4, multiply by 5, then add 9

brilliants [131]

Answer:

x - 4 = 4x

4x × 5 = 20x

20x + 9 = 29x

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Next sequence of 1,-2,-5,-8

melamori03 [73]

Answer:

-11,-14,-17

Step-by-step explanation:

Your numbers are decreasing by 3.

3 0

3 years ago

Write 9.753 in words

vlabodo [156]

Hey there! :D

When you write out decimals, you use words that end with 'ths'. And you use the smallest digit's place to name the whole decimal.

For example,

.1 = one-tenths .25= twenty hundreths .345= three hundred and forty five thousandths

9.753= Nine and seven hundred fifty-three thousandths.

I hope this helps!
~kaikers

3 0

3 years ago

Flow meters are installed in urban sewer systems to measure the flows through the pipes. In dry weatherconditions (no rain) the

ziro4ka [17]

Answer:

a) $\frac{(8)(30.23)^2}{20.09} \leq \sigma^2 \leq \frac{(8)(30.23)^2}{1.65}$

$363.90 \leq \sigma^2 \leq 4430.80$

Now we just take square root on both sides of the interval and we got:

$19.08 \leq \sigma \leq 66.56$

b) For this case we are 98% confidence that the true deviation for the population of interest is between 19.08 and 66.56

Step-by-step explanation:

423.6, 487.3, 453.2, 402.9, 483.0, 477.7, 442.3, 418.4, 459.0

Part a

The confidence interval for the population variance is given by the following formula:

$\frac{(n-1)s^2}{\chi^2_{\alpha/2}} \leq \sigma^2 \leq \frac{(n-1)s^2}{\chi^2_{1-\alpha/2}}$

On this case we need to find the sample standard deviation with the following formula:

$s=sqrt{\frac{\sum_{i=1}^8 (x_i -\bar x)^2}{n-1}}
And in order to find the sample mean we just need to use this formula:
[tex]\bar x =\frac{\sum_{i=1}^n x_i}{n}$