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
Airida [17]
3 years ago
10

The second and forth pic is the answers to the first and third pic.. second pic is the answers to first pic and the forth pic is

the answer for the third pic..

Mathematics
2 answers:
Deffense [45]3 years ago
7 0

Answer:

pic # 1 answer is B. 81 x pi

pic#3 answer is C. QC

Step-by-step explanation:

pic #1

         the formula to find the area of a circle is pi x the radius to the second power

they give you the diameter. (18)

the radius is half of a diameter (d/2)

so 18/3 = 9

9 to the second power (9 x 9) = 81

so your answer is 81 x pi

pic#2

        I don't much, but i do know they asking for the radius and since the radius is half the diameter of a circle then QC makes sense in my book.

hope this is helpful.

Illusion [34]3 years ago
7 0

Answer: knock knock

Step-by-step explanation:

You might be interested in
4. Is rap music more popular among young Indians than among young Asians? A sample survey compared 634 randomly chosen Indians a
bulgar [2K]

Answer:

H0 is accepted

there is no difference between the proportions of Indian and Asian young people who listen to rap music every day.

Step-by-step explanation:

Given  a sample survey compared 634 randomly chosen Indians aged 15 to 25 with 567 randomly selected Asians in the same age group.

p_{1} = \frac{368}{634} =0.580

It found that 368 of the Indians and 130 Asians listened to rap music every day.

p_{2} = \frac{130}{567} =0.229

Null hypothesis H0: there is no difference between the proportions of Indian and Asian young people who listen to rap every day.

p_{1} = p_{2}

Alternative hypothesis:- p_{1} \neq  p_{2}

Level of significance α = 0.05

The test of statistic

z = \frac{p_{1} -  p_{2}}{\sqrt{pq(\frac{1}{n_{1} }+\frac{1}{n_{2} })  } } }

where p = \frac{n_{1}p_{1} + n_{1}p_{2}}{n_{1}+n_{2}} = \frac{634(0.580)+567(0.229)}{634+567}

       p = 0.414

and q = 1-p = 1- 0.414 =0.586

Z = \frac{0.580-0.229}{\sqrt{0.414(0.586)(\frac{1}{634} +\frac{1}{567} } } }

on calculation , we get

z = 0.300 ><1.96 at 95 % level of significance

H0 is accepted

there is no difference between the proportions of Indian and Asian young people who listen to rap every day.

3 0
3 years ago
a molecule is measured and the width is 3x10-6 cm. how long will a string of 225 similar molecule be? give your answer in scient
mixer [17]

The length of the molecule is 6.75*10^-^4cm in scientific notation.

Data;

  • Width of molecule = 3*10^-6 cm
  • Number of molecules = 225

<h3>Length of the molecule</h3>

This can be calculated as the total length of the 225 molecules added together. To do this, we simply multiply both the numbers of the molecules by the width of the molecule.

This becomes;

3*10^-^6*225 = 0.000675cm = 6.75*10^-^4cm

The length of the molecule is 6.75*10^-^4cm in scientific notation.

Learn more on scientific notation here;

brainly.com/question/5756316

brainly.com/question/1712028

7 0
3 years ago
Factor the following:<br><br> x2+12x+35
Gelneren [198K]

Answer:

x = 6 - √ 71

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A book sold 31,700 copies in its first month of release. Suppose this represents 8.8% of the number of copies sold to date. How
elena-14-01-66 [18.8K]

For this case we propose a rule of three:

31700 ------------> 8.8%

x ----------------------> 100%

Where "x" represents the number of copies sold to date.

x = \frac {100 * 31700} {8.8}\\x = \frac {3170000} {8.8}\\x = 360,227.273

Thus, to date 360,227 copies of the book have been sold.

ANswer:

To date, 360,227 copies of the book have been sold.

8 0
4 years ago
Simplify the following expression.<br><br> 0.466 × 1.2
Ganezh [65]

Answer:

0.466 \times 1.2 \\  \frac{699}{1250}   \:  \: or \:  \: 0.55

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is 7/21 in its simplest form
    15·2 answers
  • Simplify the expression. –10z – 28z <br> 18 <br> 18z <br> –38z <br> 38z
    10·2 answers
  • 66×10^4 in standard notation
    14·1 answer
  • What is the equation for the vertical asymptote of the function shown below? f(x)=3x^4-3/2x-5
    12·1 answer
  • (adapted from Ross, 2.37) Your math professor gives you a set of 10 problems and tells you that the final exam will consist of a
    9·2 answers
  • Put these in order starting with the smallest:
    11·1 answer
  • Which expression is equivalent to square root of -80
    10·2 answers
  • You’re making to recipes one recipe calls for 2 1/3 cups of flour the other recipe calls for 1 1/4 cups of flour how much flour
    12·1 answer
  • Help!!!!!! Find the center and radius of the circle.
    9·1 answer
  • I need help with B) C) and D) <br> Please Help me!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!