All categories

3 years ago

ANYONE GOOD AT MATH CAN PLEASE HELP ME???

Mathematics

2 answers:

dmitriy555 [2]3 years ago

6 0

Answer:

i can help you

any time u want

solong [7]3 years ago

6 0

Answer:

i am not perfect in math but i always trying to help you

You might be interested in

What is the y-intercept of the equation of the line that is perpendicular to the line y =3/5x + 10 and passes through the point

vladimir1956 [14]

The answe would be y=-5/3x+20

4 0

3 years ago

Read 2 more answers

The lifetime of a certain type of battery is normally distributed with mean value 15 hours and standard deviation 1 hour. There

KIM [24]

Answer:

If the lifetime of batteries in the packet is 40.83 hours or more then, it exceeds for 5% of all packages.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 15

Standard Deviation, σ = 1

Sample size = 4

Total lifetime of 4 batteries = 40 hours

We are given that the distribution of lifetime is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling:

$\displaystyle\frac{\sigma}{\sqrt{n}} = \frac{1}{\sqrt4} = 0.5$

We have to find the value of x such that the probability is 0.05

P(X > x) = 0.05

$P( X > x) = P( z > \displaystyle\frac{x - 40}{0.5})=0.05$

$= 1 -P( z \leq \displaystyle\frac{x - 40}{0.5})=0.05$

$=P( z \leq \displaystyle\frac{x - 40}{0.5})=0.95$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 40}{0.5} = 1.64\\x = 40.825 \approx 40.83$

Hence, if the lifetime of batteries in the packet is 40.83 hours or more then, it exceeds for 5% of all packages.

8 0

3 years ago

This test is literally the death of me but can anyone help?

Neporo4naja [7]

Answer:

answer is b

Step-by-step explanation:

i hope this helps you

7 0

3 years ago

Read 2 more answers

What type of triangle is pictured in the following figure?

maks197457 [2]

This is an isosceles triangle. The angles in the legs are congruent therefore making the legs congruent as well. Hope this helps!

4 0

3 years ago

Read 2 more answers

An amusement park charges $8 admission and $2 a ride show a table please

NNADVOKAT [17]

Answer:

Step-by-step explanation:

$ 8 admission and $ 2 a ride

y = 2x + 8.....where y is the total cost and x is the # of rides

table :

x = 1 , 2 , 3 , 4 ,5 , 6

y = 10, 12 , 14, 16 , 18 , 20

7 0

3 years ago