1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ella [17]
3 years ago
9

Please help me i don't get this and im dum

Mathematics
2 answers:
Tom [10]3 years ago
5 0

Answer:

5,280 is equal to 1 mile

Step-by-step explanation:

balu736 [363]3 years ago
4 0

Answer:

The answer is 1.

Step-by-step explanation:

You might be interested in
What is the degree for this polynomial 4ry2 + 3x<br> 5
kenny6666 [7]

Answer:

I hope your question is 4x²+3x+5, then the degree of this polynomial is 2

6 0
3 years ago
SOMEONE PLEASE HELP ME ASAP PLEASE!!!​
viva [34]

Answer:

30°

Step-by-step explanation:

First we take the full amount of degrees from points A to C, which is given as 125° then subtract 94°, which is the given amount from points A to D, this results in 30°

6 0
3 years ago
Ken, a single taxpayer, has a gross income of $79,685. He claims one exemption and can take a deduction of $1,257 for medical ex
Ganezh [65]
The answer is c. $12,675 just took the test 
4 0
3 years ago
Read 2 more answers
What is the probability a sample of 90 test takers will provide a sample mean test score within 10 points of the population mean
Elena-2011 [213]

Answer:

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

Step-by-step explanation:

The following information is missing:

The standard deviation of population is 100.

We are given the following information in the question:

Population mean, μ = 502

Standard Deviation, σ = 100

Sample size, n  = 90

Standard error =

\dfrac{\sigma}{\sqrt{n}} = \dfrac{100}{\sqrt{90}} =  10.54

Formula:

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

P(test score within 10 points)

P(492 \leq x \leq 512) \\\\= P(\displaystyle\frac{492 - 502}{10.54} \leq z \leq \displaystyle\frac{512-502}{10.54}) \\\\= P(-0.9487 \leq z \leq 0.9487)\\= P(z \leq 0.9487) - P(z < -0.9487)\\= 0.829 -0.171 = 0.658 = 65.8\%

P(492 \leq x \leq 512) = 65.8\%

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

7 0
3 years ago
a 23 gram sample of a substance thats a by-product of fireworks has a K-value of .13. whats the substances half life in days
nata0808 [166]
Given:
Initial mass, m₀ = 23 g
Decay constant, k = 0.13

Exponential decay obeys the equation
m(t)=m_{0} e^{-kt}
where t = time, days

For half life, the mass is m = m₀/2.
Therefore
e^{-0.13t} = \frac{1}{2} \\ -0.13t = ln(0.5)\\t= \frac{ln(0.5)}{-0.13} =5.33

Answer: The half life is 5.33 days
3 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate f(3) for each of the following:
    14·1 answer
  • The simplest form of the decimal 0.525 as fraction is
    7·1 answer
  • Write the equation for twelve times h =100 and twenty minus thirty six
    5·1 answer
  • Geometry proofs <br> Need help!!
    11·1 answer
  • The closest distance between Earth and Mars is approximately 3.39x107 miles. The fastest rocket leaving Earth travels at an
    6·1 answer
  • Parentheses 3 squared - 2 cubed parentheses 66<br><img src="https://tex.z-dn.net/?f=%28%20%7B3%7D%5E%7B2%7D%20%20-%20%20%7B2%7D%
    8·1 answer
  • 2x4 + 4x3 – 30x2 = 0
    10·1 answer
  • Pleeeease help me please
    12·1 answer
  • The vertices of a triangle are P[4.1). Q(2.-8), and R(-8.1). What are the vertices of the image reflected across the y-axis?
    13·1 answer
  • What is the direction of the vector = ?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!