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1 year ago

Lexi has 514 cups of popcorn. How many friends can she share with if each person gets 78

Mathematics

2 answers:

Serggg [28]1 year ago

4 0

6 friends would each get 78 pieces of popcorn

s2008m [1.1K]1 year ago

3 0

Answer:

approx. 6 friends brainiest rate 5 stars and thank mee : )

Step-by-step explanation:

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Determine the area under the standard normal curve that lies to the left of (a) Z=081. (b) Z=0.43. (c) Z= -0.33. and (d) Z= 1.04

nasty-shy [4]

Using the normal distribution, the areas to the left are given as follows:

a) 0.7910.

b) 0.6664.

c) 0.3707.

d) 0.8508.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

$Z = \frac{X - \mu}{\sigma}$

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X, and is also the area to the left of Z.

Hence:

The area to the left of Z = 0.81 is of 0.7910.

The area to the left of Z = 0.43 is of 0.6664.

The area to the left of Z = -0.33 is of 0.3707.

The area to the left of Z = 1.04 is of 0.8508.

More can be learned about the normal distribution at brainly.com/question/4079902

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1 year ago

If a perimeter is 20/21 what is the side length of the square

Sever21 [200]

Answer:

each side would be 5/21

6 0

2 years ago

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WILL GIVE BRAINLIEST-<br> Complete the table to multiply x^2 - 4x + 4 and 6x + 3.

Lesechka [4]

6x^3 -24x^2 24x
3x^2 -12x 12

4 0

2 years ago

GEOMETRY!!!! CLICK ON THE PICTURE

Helga [31]

Answer:

#1 - Two complementary angles with measures that have a sum of 90.

#2- angles with a common vertex and side.

#3 - two supplementary angles with measures that have a sum of 180.

#4 - the region of a plane inside an angle

#5 - the region of a plane outside an angle

#6 - an angle with a measure of anything less than 90 degrees.

#7 - an angle with a measure of anything greater than 90 degrees.

These all should be right :)

Lmk how I did!

7 0

2 years ago

Where v is the final velocity (in m/s), u is the initial velocity (in m/s), a is the acceleration (in m/s²) and s is the distanc

Anna11 [10]

Answer:

The final velocity v is 21.74 m/s.

Step-by-step explanation:

Given:

$\textrm{initial velocity} = u = 9\ m/s\\\textrm{acceleration} = a = 7\ m/s^{2}\\\textrm{distance} = s = 28\ m$

To find:

$\textrm{final velocity} = v = ?$

Solution:

As we know the third equation of motion is represented as

$v^{2} = u^{2} + 2\times a\times s\\$

Substituting the values u, a and s in the above equation we get

$v^{2} = 9^{2} + 2\times 7\times 28\\ =81 + 392\\=473\\$

$v =\±\sqrt{473} \\v =\sqrt{473} \ \textrm{as acceleration is positive v is also positive}\\v = 21.74\ m/s$

7 0

3 years ago