What's 1+1 ??? <br><br> enjoy!

The total cost of Anja’s trip to the dentist was $628.35. She paid a flat fee of $89.95 which included the checkup and cleaning

Nuetrik [128]

I may be wrong but I am sure this is the equation...
$628.35= $89.95+4x

4 0

4 years ago

Help me find the perimeter

schepotkina [342]

We can definitely help you find the perimeter if you give us the shape and dimensions of the figure.

Xo,
Coug.

3 0

3 years ago

On the planet of Mercury, 4-year-olds average 3 hours a day unsupervised. Most of the unsupervised children live in rural areas,

erastova [34]

Answer:

a

The distribution of X is normal

b

$P(X < 1.4) = 0.12654$

c

$P(X > 3.5) = 0.36051$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 3 \ hours$

The standard deviation is $\sigma = 1.4 \ hours$

Generally given from the question that the amount of time spent alone by the population size is normally distributed then then the distribution of X (i.e the amount of time spent by the sample size (the one Mercurian)) will be normally distributed

Generally the probability that the child spend less than one hour in a day is mathematically represented as

$P(X < 1.4) = P(\frac{X - \mu}{\sigma} < \frac{1.4 - \mu}{\sigma} )$

Here $\frac{X - \mu}{\sigma } = Z (The\ standardized\ value\ of\ X)$

So

$P(X < 1.4) = P(Z < \frac{1.4 - 3.0}{1.4} )$

$P(X < 1.4) = P(Z < -1.1429 )$

From the z-table the value of

$P(Z < -1.1429 )=0.12654$

So $P(X < 1.4) = 0.12654$

Generally the percentage of children that spends over 3.5 hours unsupervised is mathematically represented as

$P(X > 3.5) = P(\frac{X - \mu}{\sigma} > \frac{3.5 - \mu}{\sigma} )$

$P(X > 3.5) = P(Z > \frac{3.5 - 3.0}{1.4} )$

$P(X > 3.5) = P(Z > 0.3571 )$

From the z-table the value of

$P(Z >0.3571 )=0.36051$

So $P(X > 3.5) = 0.36051$

5 0

3 years ago

In your own words, describe how you find the slope of a line.

myrzilka [38]

You can find the slope of a line by looking at the number that has an X next to it.

for example
y=2x+5
the slope is = 2

hope this helps

6 0

3 years ago

0.88 as a fraction in simplest form

ANTONII [103]

Answer:

0.88 as a fraction in simplest form is 22/25.

0.88 = 88/100

Simplify (divide both by 4)

22/25

A fraction is in simplest form when the top and bottom cannot be any smaller, while still being whole numbers.

I hope this was helpful to you! If it was, please consider rating, pressing thanks, and marking as Brainliest. It would mean a lot :) Have a wonderful day.

5 0

3 years ago

Read 2 more answers

What's 1+1 ??? enjoy!