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ivann1987 [24]
2 years ago
5

in a materity ward of a hospital, weights of newborns are normally distributed with a mean of 120 oz and a standard deviation of

21 oz. a) if a newborn is selected at random, what is the probability that the infant weighs less than 79 oz? ​
Mathematics
2 answers:
sveticcg [70]2 years ago
7 0

Answer:

Answer: (0.974, 1.056) liters

Step-by-step explanation:

Vika [28.1K]2 years ago
5 0

https://quizlet.com/306292578/mas-flash-cards/

Go to that site it is flash cards about it that has the answeres lol yw

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What is 22% expressed as a fraction in simplest form?
nata0808 [166]
<span>22% when expressed as a fraction is 22/100.
 to write this in the simplest form, we have to keep dividing both numerator and denominator by a common number.
22/100 , both are divisible by 2. therefore when 22/100 is divided by 2
</span>\frac{22/2}{100/2} =  \frac{11}{50}<span>
then we get 11/50. this cannot be divided any further by a common factor to both. therefore simplest form is 11/50</span>
6 0
3 years ago
The Children’s Hospital sponsors a 10K race to raise money. It receives $75 per race entry and $10,000 in donations, but it must
svetlana [45]

THE ANSWER:


There would need to be at least 1,800 entries in order for them to meet their goal.


Step-by-step explanation:


To find this, we must write an equation that helps solve it. We know that for every entry (x), we gain 75 and lose 25. We can express this as the following.


75x - 25x


Then we can add the number of donations.


75x - 25x + 10,000


Then we can set it as greater than or equal to the goal number.


75x - 25x + 10,000 ≥ 100,000


Now we solve this using the order of operations.


75x - 25x + 10,000 ≥ 100,000 ----> Combine like terms


50x + 10,000 ≥ 100,000 ------> Subtract 10,000


50x ≥ 90,000 -----> Divide by 50


~~~~~~~~~x ≥ 1,800~~~~~



4 0
3 years ago
Read 2 more answers
What is the value of x?
laiz [17]

yyyyyessssssss oooooo

5 0
3 years ago
6y + 2x - 2y - 3x<br> PLEASE HELP ASAP THANK YOU
11Alexandr11 [23.1K]

Answer:

4y-x

Step-by-step explanation:

Combine like-terms.

6y-2y and  -3x+2x

Do the Math

4y and -x

4y-x



8 0
3 years ago
Descried how to derive the quadratic formula from a quadratic equation in standard form
Aleks [24]

Answer:

The standard form of a quadratic equation is:

ax^2+bx+c=0, a\neq 0

Quadratic Formula Derivation:

ax^2+bx+c=0\\

$x^2+\frac{b}{a}x+\frac{c}{a} =0 $

$x^2+\frac{b}{a}x = -\frac{c}{a}$

Completing the Square:

$x^2+\frac{b}{a}x +\frac{b^2}{4a^2} = \frac{b^2}{4a^2}-\frac{c}{a}$

$  ( x+\frac{b}{2a} )^2 =  \frac{b^2-4ac}{4a^2}  $

Square Root property:

$x+\frac{b}{2a}  = \pm \sqrt{ \frac{b^2-4ac}{4a^2}}   $

$x  = -\frac{b}{2a} \pm  { \frac{\sqrt {b^2-4ac}}{2a}}   $

$x  =  \frac{-b\pm\sqrt{b^2-4ac}} {2a}  }   $

8 0
2 years ago
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