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
stepan [7]
3 years ago
13

Help with number 2 and show how you got the answer

Mathematics
2 answers:
dimulka [17.4K]3 years ago
6 0
2/5 on the pie chart it says that 2/5 of the band plays a brass instrument
luda_lava [24]3 years ago
6 0
It should be 12 people. 2/5 of 30 is 12
You might be interested in
531 times what equals 5,310
Leya [2.2K]

Answer:

10

531 x 10 = 5,310

4 0
3 years ago
Read 2 more answers
H(n) = 3^n+3; Find h (3n)
olya-2409 [2.1K]

Answer:

The option which you chose is absolutely right.

Step-by-step explanation:

h(n) = 3^ n + 3

h(3n) = 3 ^3n + 3

Hope it will help :)

5 0
3 years ago
Simplify the expression to one number using order of operations:
geniusboy [140]
<h2><u>COMBINED OPERATIONS</u></h2><h3>Exercise</h3>

First, let's solve the subtraction (in parentheses):

\mathsf{\dfrac{-8\left(2-6\right)}{2}}

\mathsf{\dfrac{-8(-4)}{2}}

Now, let's solve the multiplication. Remember: in multiplication, two negative numbers will give a positive number:

\mathsf{\dfrac{-8(-4)}{2}}

\mathsf{\dfrac{32}{2}}

Finally, let's solve the division:

\mathsf{\dfrac{32}{2} = 16}

<h3><u>Answer</u>: 16</h3>
5 0
3 years ago
A greenhouse room at the botanical garden is in the shape of a hemisphere the height at the center of the dome is 24 feet what i
Montano1993 [528]

Answer:

C

Hope this helped!

8 0
3 years ago
In a study of government financial aid for college​ students, it becomes necessary to estimate the percentage of​ full-time coll
ICE Princess25 [194]

Answer:

a) n = 1037.

b) n = 1026.

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}}

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.

​(a) Assume that nothing is known about the percentage to be estimated.

We need to find n when M = 0.04.

We dont know the percentage to be estimated, so we use \pi = 0.5, which is when we are going to need the largest sample size.

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

0.04 = 2.575\sqrt{\frac{0.5*0.5}{n}}

0.04\sqrt{n} = 2.575*0.5

(\sqrt{n}) = \frac{2.575*0.5}{0.04}

(\sqrt{n})^{2} = (\frac{2.575*0.5}{0.04})^{2}

n = 1036.03

Rounding up

n = 1037.

(b) Assume prior studies have shown that about 55​% of​ full-time students earn​ bachelor's degrees in four years or less.

\pi = 0.55

So

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

0.04 = 2.575\sqrt{\frac{0.55*0.45}{n}}

0.04\sqrt{n} = 2.575*\sqrt{0.55*0.45}

(\sqrt{n}) = \frac{2.575*\sqrt{0.55*0.45}}{0.04}

(\sqrt{n})^{2} = (\frac{2.575*\sqrt{0.55*0.45}}{0.04})^{2}

n = 1025.7

Rounding up

n = 1026.

6 0
3 years ago
Other questions:
  • Solve for x.... 10 points
    11·2 answers
  • What is the expanded form of this number?<br><br> 509.307
    10·1 answer
  • The slope of y=13/12x+43
    14·1 answer
  • How many real roots are in<br> X^3 - 4x^2 + 5x<br> A) 0<br> B) 3,<br> C) 1<br> D) 4<br> E) 2
    13·1 answer
  • What is the answer pls
    8·2 answers
  • 5,510 divided by 56 equals
    8·1 answer
  • PLS HELP ASAP <br> REFER TO ATTACHMENT
    12·1 answer
  • You have $10. If you and 3 of your friends want to go to the movies, what does the ticket price need to be for you to be able to
    8·1 answer
  • The probability that a student guesses the correct answer to a four-choice multiple-choice question is ​P(correct)=0.25. How man
    9·1 answer
  • I need help , what’s the answer <br><br> A. 25 feet<br> B. 13 feet <br> C. 17 feet<br> D. 12 feet
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!