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
pogonyaev
3 years ago
5

Ight so the pryramid has a square base height that is 18 inches on each side. It gots a surface area of 864 square inches. Whats

the slant height?
A) 2.6 inches
B) 8 inches
C) 15 inches
D) 48 inches
This proably pretty easy for you smart math people so hurry up.
Mathematics
1 answer:
BaLLatris [955]3 years ago
4 0
I believe the answer is D because i divided 864 by 18 and i got 48

Hope my answer helped :)
You might be interested in
please answer will mark brainalist .the area of a triangle of altitude 15 m is 225 sq.m.whatbis the length of its base please sh
Amanda [17]

Step-by-step explanation:

30. i already know this sa. . ....

7 0
3 years ago
A high definition radio station charges $200 per year in addition to $50 per month for the first 3 months to recieve its broadca
saul85 [17]
X - number of months ( 1, 2 or 3 );
A function is:
f ( x ) = 50 x + 200
A reasonable domain is:
x ∈ { 1, 2, 3 }
The range is:
y ∈{ $250, $300, $350 }
5 0
3 years ago
Read 2 more answers
Find the cartesian equation for the parametric equation x = 2sin x, y = cos x
MaRussiya [10]
In this equation y would equal 4 or it could be 1
8 0
2 years ago
The dwarves of the Grey Mountains wish to conduct a survey of their pick-axes in order to construct a 99% confidence interval ab
Dmitry_Shevchenko [17]

Answer:

The minimum sample size needed is 125.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

For this problem, we have that:

\pi = 0.25

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

What minimum sample size would be necessary in order ensure a margin of error of 10 percentage points (or less) if they use the prior estimate that 25 percent of the pick-axes are in need of repair?

This minimum sample size is n.

n is found when M = 0.1

So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.1 = 2.575\sqrt{\frac{0.25*0.75}{n}}

0.1\sqrt{n} = 2.575{0.25*0.75}

\sqrt{n} = \frac{2.575{0.25*0.75}}{0.1}

(\sqrt{n})^{2} = (\frac{2.575{0.25*0.75}}{0.1})^{2}

n = 124.32

Rounding up

The minimum sample size needed is 125.

5 0
3 years ago
What is 11,000*.0425*30
Evgesh-ka [11]

Answer:

14025

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Using complete sentences, explain how to find the average rate of change for f(x) from x = 4 to x = 7.
    8·1 answer
  • À partir d'une certaine profondeur, la température à l'intérieur de la Terre, exprimée
    5·1 answer
  • Which number completes the Pythagorean triple: 12,16____? <br><br> 18<br> 20<br> 22<br> 24
    14·2 answers
  • A baby weighs 115 ounces. What is the baby's weight in pounds and ounces? *Plz explain your answer*
    9·2 answers
  • What is 9:21 equal to in rational form
    8·1 answer
  • A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before​ treatment, 2
    12·1 answer
  • Graph the line that represents a proportional relationship between d and t with the property that an increase of 3 units in t co
    5·1 answer
  • The amount of money that Kelly makes varies directly with the number of hours she works. If Kelly makes $306 when she works 18 h
    10·2 answers
  • Prepare the journal entries to record the following transactions on Pharoah Company’s books using a perpetual inventory system.
    14·1 answer
  • Limitation of -4 to the left of the absolute value of x+4 divided by x+4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!