4 years ago

A. 3.9 B. 2.2 C. 2.7 D. 3.3

Mathematics

1 answer:

Elan Coil [88]4 years ago

5 0

CD = sqrt (6^2 - 5^2)
CD = sqrt(36 - 25)
CD = sqrt(11)
CD = 3.3

answer
D. 3.3

You might be interested in

Please help me! ;_; I’m so lost here if you could help thanks

Gennadij [26K]

You’ll need a rule and measure it by inches and whatever inches you get write them down

5 0

3 years ago

Find the volume of the pyramid

Scorpion4ik [409]

The answer is V=384.

5 0

3 years ago

Read 2 more answers

May someone help me SKSKSKSKSK

Arte-miy333 [17]

Answer:

P= A + B + C

Step-by-step explanation:

P= Side + base + Side

P= 10 + 6 + 8

P = 24

3 0

4 years ago

A 98% confidence interval for the mean of a population is to be constructed and must be accurate to within 0.3 unit. A prelimina

BaLLatris [955]

Answer:

$n = (\frac{2.326*1.7}{0.3})^2= 173.73$

And the value for n rounded up would be n = 174

Step-by-step explanation:

We have the following info given:

$s= 1.7$ previous estimation for the deviation

$ME=0.03$ the margin of error desired

$Conf =0.98$ represent the confidence

The Margin of error is given by:

$ME = z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$

If we solve for the value of n we got:

$n= (\frac{z*\sigma}{ME})^2$

For this problem we know that the confidence is 98% so then the significance level would be $\alpha=0.02$ and the critical value would be:

$z_{\alpha/2}= 2.326$

And replacing we got:

$n = (\frac{2.326*1.7}{0.3})^2= 173.73$

And the value for n rounded up would be n = 174

3 0

3 years ago

PLEASE ANSWER ASAP !!! IM TAKIN A QUIZ

Elanso [62]

Here I did all I can do rn

7 0

4 years ago

Read 2 more answers