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
IceJOKER [234]
3 years ago
13

Which number is composite? 5 11 9 2

Mathematics
1 answer:
Dmitrij [34]3 years ago
8 0

Answer:

9 and 2

Step-by-step explanation:

You might be interested in
A few seconds ago i posted a really hard question, but this one is WAY more hard, whats 2 + 4? (i doubt that anyones brain is bi
Gelneren [198K]

Answer:

Dude why did you do this to us it's too hard

Step-by-step explanation:

P.S. It' 6

7 0
2 years ago
A bakery sold 111 cupcakes in one day. The head baker predicted he would sell 91 cupcakes that day. What was the percent error o
Yuliya22 [10]
111-91=20-error\\\\\begin{array}{ccc}91&-&100\%\\\\20&-&p\%\end{array}\ \ \ |cross\ multiply\\\\\\91p=100\cdot20\\91p=2000\ \ \ \ |divide\ both\ sides\ by\ 91\\\\\boxed{p\approx21.98\ (\%)}\leftarrow answer
3 0
3 years ago
Stacy and Neil painted 280 ft2 of their living room wall with 4/5 gallon of paint. How many square feet can they paint with 4 ga
Neporo4naja [7]

Answer:

56

Step-by-step explanation:

Divide 280 by 4/5 and get 14 then multiply by 4 and get 56

3 0
3 years ago
Read 2 more answers
.11 A machine produces metal pieces that are cylindrical in shape. A sample of pieces is taken, and the diameters are found to b
Troyanec [42]

Answer:

The 99% confidence interval for the mean diameter of pieces from this machine is between 0.93 and 1.07.

Step-by-step explanation:

Sample mean:

Sum of all values divided by the number of values. So

M = \frac{1.01+0.97+1.03+1.04+0.99+0.98+0.99+1.01+1.03}{9} = 1

Sample standard deviation:

Square root of the sum of the differences between each value and the mean, divided by the 1 less than the sample size. So

s = \sqrt{\frac{(1.01-1)^2+(0.97-1)^2+(1.03-1)^2+(1.04-1)^2+(0.99-1)^2+(0.98-1)^2+(0.99-1)^2+(1.01-1)^2+(1.03-1)^2}{8}} = 0.0657

Confidence interval:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 9 - 1 = 8

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 8 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 3.355

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 3.355\frac{0.0657}{\sqrt{9}} = 0.07

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 1 - 0.07 = 0.93

The upper end of the interval is the sample mean added to M. So it is 1 + 0.07 = 1.07

The 99% confidence interval for the mean diameter of pieces from this machine is between 0.93 and 1.07.

7 0
2 years ago
The diameter of a circle has endpoints P(-6,-11 ) and Q(4, 7). Write an equation for the circle. Be sure to show and explain all
MrMuchimi

Answer:

(x + 1)^2 + (y + 2)^2 = 106

Step-by-step explanation:

The formula for a circle is

(x - h)^2 + (y - k)^2 = r^2

Where (h, k) is the center of the circle and r is the raadius

--------------------------------------

The center is the midpoint of the diameter end points

(h, k) = ( (-6 + 4)/2 , (-11 + 7)/2 )

(h, k) = (-1, -2)

The radius is the distance from the center to an endpoint

Using (h, k) and Q

r^2 = (4 - -1)^2 + (7 - -2)^2

r^2 = 5^2 + 9^2

r^2 = 106

-------------------------------

Plug into the circle formula

(x + 1)^2 + (y + 2)^2 = 106

7 0
3 years ago
Other questions:
  • Quadrilateral WILDWILDW, I, L, D is inscribed in circle OOO. \overline{WI} WI start overline, W, I, end overline is a diameter o
    12·1 answer
  • Bob packed twenty grapes and a pear in his lunch. He ate thirteen grapes and the pear. What fraction of the grapes did Bob eat?
    15·1 answer
  • True or False?<br> k = 3 over 5 is a solution to the inequality 15k + 3 &lt; 15.
    8·2 answers
  • ———-help plzzzzz—————
    11·2 answers
  • Homewood Middle School has 1200 students, and 730 of these students attend a summer picnic. If two-thirds of the girls in the sc
    6·1 answer
  • Can u help me with my warm up
    14·1 answer
  • Round off 174 to the nearest hundred​
    13·2 answers
  • Find K: mx=p(z/x+k + 2s/y)
    11·1 answer
  • Darla is creating a family tree. She starts by writing down the names of her two parents. For each of her parents, she writes do
    11·1 answer
  • How much weight does the women in the video lose in a year? 80 pounds 90 pounds 50 pounds 20 pounds
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!