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2 years ago

omg guys imagine sneezing all day and then next thing hourssss later boom you lost your voice has that ever happened to you

Mathematics

2 answers:

Olenka [21]2 years ago

7 0

Yes I know that’s happened to my mom and she’s now dead

katrin2010 [14]2 years ago

6 0

Answer:

no lol

Step-by-step explanation:

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Reflect A (1,3) over the y-axis

gulaghasi [49]

Answer:

Up 1 and over 3

Step-by-step explanation:

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3 years ago

Can somebody help me with Find 15% of $25

Zolol [24]

Answer:

$3.75

Step-by-step explanation:

This is the answer! Just trust me!

7 0

3 years ago

Read 2 more answers

A recipe requires 3/4 of a cup of flour.

nalin [4]

Answer:

Step-by-step explanation:

the required mass of flour = (3÷4)×225 = 168.75

8 0

3 years ago

If 3/8 of my money is $3840.00. How much did I have at first? *

NNADVOKAT [17]

Answer:

E $10240.00

Step-by-step explanation:

The total amount of money is x.

3/8 × x = 3840

Multiply both sides by the reciprocal of 3/8 which is 8/3.

x = 3840 × 8/3

x = 10240

Answer: E $10240.00

7 0

2 years ago

Read 2 more answers

what is the probability of seeing a sample mean for 21 observations less or equal to the sample mean that we observed

kramer

Answer:

$P(x \le 21) = 0.69146$

Step-by-step explanation:

The missing parameters are:

$n = 64$ --- population

$\mu = 20$ --- population mean

$\sigma = 16$ -- population standard deviation

Required

$P(x \le 21)$

First, calculate the sample standard deviation

$\sigma_x = \frac{\sigma}{\sqrt n}$

$\sigma_x = \frac{16}{\sqrt {64}}$

$\sigma_x = \frac{16}{8}$

$\sigma_x = 2$

Next, calculate the sample mean $\bar_x$

$\bar x = \mu$

So:

$\bar x = 20$

So, we have:

$\sigma_x = 2$

$\bar x = 20$

$x = 21$

Calculate the z score

$x = \frac{x - \mu}{\sigma}$

$x = \frac{21 - 20}{2}$

$x = \frac{1}{2}$

$x = 0.50$

So, we have:

$P(x \le 21) = P(z \le 0.50)$

From the z table

$P(z \le 0.50) = 0.69146$

So:

$P(x \le 21) = 0.69146$

4 0

2 years ago