All categories

3 years ago

R times twelve.............

Mathematics

1 answer:

ivann1987 [24]3 years ago

8 0

Answer:

= r12 (variable varies)

Step-by-step explanation:

brainliest plz

You might be interested in

Human body temperatures have a mean of 98.20 degrees Fahrenheit and a standard deviation of 0.62 degrees Fahrenheit. Convert 103

Artist 52 [7]

Answer:

<em>z-score will be: 7.741.... and it will be unusual. </em>

Step-by-step explanation:

Human body temperatures have a mean of 98.20 degrees Fahrenheit and a standard deviation of 0.62 degrees Fahrenheit.

So here, $\mu= 98.20$ and $\sigma= 0.62$

<u>Formula for z-score</u> is: $z= \frac{X-\mu}{\sigma}$

Thus, the z-score for 103.00 degrees Fahrenheit will be.......

$z(X=103.00)= \frac{103.00-98.20}{0.62}=7.741...$

As, here the z-score is more than 2 standard deviations above the mean, so 103.00 degrees Fahrenheit is unusual for human body temperature.

4 0

3 years ago

ou are at the county fair and play a game that involves throwing a baseball at target. You get 3 baseballs, and you win a prize

yaroslaw [1]

Answer:

0.98

Step-by-step explanation:

Prob (Ball target & prize ) = 0.74

Prob (Ball no target & no prize) = 1 - 0.74 = 0.26

Three Balls : Prob (atleast 1 prize) = 1 - Prob (No ball target & no price)

= 1 - (0.26)^3

= 1 - 0.017576

= 0.982424

3 0

3 years ago

The ratio of adults to kids in a school is 3 : 7. If there is a total of 200 people, how many of them are adults?

vazorg [7]

Answer:

60 adults

Step-by-step explanation:

if you incress it all using cool math you get

3:7

6:14

whitch leads to 45:105

60:140

add 60 and 140 and you get 200

3 0

3 years ago

How many cubes with side lengths of 1/4 does it take to fill the prism?

SCORPION-xisa [38]

Answer:

$\large\boxed{224\ cubes}$

Step-by-step explanation:

$\bold{METHOD\ 1}\\\\\text{Calculate the volume of a prism:}\\\\V_{p}=(2)\left(\dfrac{7}{4}\right)(1)=3.5\ cm^3\\\\\text{Calculate the volume of a cube:}\\\\V_c=\left(\dfrac{1}{4}\right)^3=\dfrac{1}{64}\ cm^3\\\\\text{Calculate how many times the volume of the prism is greater}\\\text{than the volume of the cube:}\\\\\dfrac{V_p}{V_c}=\dfrac{3.5}{\frac{1}{64}}=3.5\cdot64=224$

$\bold{METHOD\ 2}\\\\2cm:\dfrac{1}{4}cm=2\cdot4=8\\\\\dfrac{7}{4}cm:\dfrac{1}{4}cm=\dfrac{7}{4}\cdot\dfrac{4}{1}=7\\\\1cm:\dfrac{1}{4}cm=1\cdot4=4\\\\8\cdot7\cdot4=224\ (cubes)$

4 0

4 years ago

What is 1 and 1/6 minus 7/12 ?

Damm [24]

$1 \frac{1}{6} - \frac{7}{12} \\ 
 \\ 1 \frac{1}{6}= \frac{1x6+1}{6}= \frac{7}{6} \\ 
 \\ \frac{7x2}{6x2}= \frac{14}{12} \\ 
 \\ \frac{7x1}{12x1}= \frac{7}{12} \\ 
 \\ \frac{14}{12} - \frac{7}{12}= \frac{7}{12} \\ 
 \\ Solution: \frac{7}{12} 
$

7 0

4 years ago