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
mario62 [17]
3 years ago
14

Can someone help last one :((

Mathematics
1 answer:
vovangra [49]3 years ago
8 0

Answer:

40.49cm²

Step-by-step explanation:

I hope it helps

You might be interested in
Please Help! ASAP! WIll give Brainliest
goblinko [34]

Answer:

x/2 = 12.5/5

5 · x = 12.5 · 2

5x = 25

5x / 5 = 25 / 5

x = 5

Step-by-step explanation:

4 0
3 years ago
If 5 ounces is equal to 140 grams, then 2 pounds of pizza dough is equal to how many grams?
krok68 [10]
907.18 grams are in 2 pounds.
5 0
3 years ago
A random sample of 36 students at a community college showed an average age of 25 years. Assume the ages of all students at the
Pavel [41]

Answer:

98% confidence interval for the average age of all students is [24.302 , 25.698]

Step-by-step explanation:

We are given that a random sample of 36 students at a community college showed an average age of 25 years.

Also, assuming that the ages of all students at the college are normally distributed with a standard deviation of 1.8 years.

So, the pivotal quantity for 98% confidence interval for the average age is given by;

             P.Q. = \frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, \bar X = sample average age = 25 years

            \sigma = population standard deviation = 1.8 years

            n = sample of students = 36

            \mu = population average age

So, 98% confidence interval for the average age, \mu is ;

P(-2.3263 < N(0,1) < 2.3263) = 0.98

P(-2.3263 < \frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } } < 2.3263) = 0.98

P( -2.3263 \times {\frac{\sigma}{\sqrt{n} } < {\bar X - \mu} < 2.3263 \times {\frac{\sigma}{\sqrt{n} } ) = 0.98

P( \bar X - 2.3263 \times {\frac{\sigma}{\sqrt{n} } < \mu < \bar X +2.3263 \times {\frac{\sigma}{\sqrt{n} } ) = 0.98

98% confidence interval for \mu = [ \bar X - 2.3263 \times {\frac{\sigma}{\sqrt{n} } , \bar X +2.3263 \times {\frac{\sigma}{\sqrt{n} } ]

                                                  = [ 25 - 2.3263 \times {\frac{1.8}{\sqrt{36} } , 25 + 2.3263 \times {\frac{1.8}{\sqrt{36} } ]

                                                  = [24.302 , 25.698]

Therefore, 98% confidence interval for the average age of all students at this college is [24.302 , 25.698].

8 0
3 years ago
Harrison has 30 cds in his music collection. If 40% of the cds are country and 30% are pop, how many are other types of music
Pavel [41]
Well you have to find out how many cd is 40% and 30% 
30% = 30x.3=9
40% = 30x.4=16
now add 16 and 9
16+9=25 now subtract 25 from 30 and see that you have 5 cd of a different type of music to find that as a % divide 5 by 35 to get .14 I rounded it to the nearest hundreth now move the decimal over 2 spots to get 14%
8 0
3 years ago
Read 2 more answers
A bag of coins contains 2 quarters, 5 dimes, 3 nickels, and 4 pennies. If 2 coins are randomly chosen from the bag, one after th
sineoko [7]
The two coins chosen have to be a quarter and a penny. That leaves you with three pennies. You originally had 14 coins. You took out two you now have 12. 

<span>3/12 = 1/4 </span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • The difference of two numbers is equal to 0.6. Their quotient is also 0.6. What are the numbers?
    7·1 answer
  • What are the sine, cosine, and tangent of 2pi/3 radians?
    11·2 answers
  • What is the area of the trapezoid ?
    15·2 answers
  • You lose four points each time you attend gym class without your gym shoes. You forgot your shoes three times this month. What i
    11·1 answer
  • Pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee​ help​
    7·1 answer
  • What is the intermediate step in the form (x + a)2 = b as a result of completing the
    7·1 answer
  • A rectangle has a perimeter of 46 meters and a base of 8 meters. What is the height?​
    13·1 answer
  • I paid $125 for Pokémon cards and sold for $150. What is the percentage of mark up rate.
    10·1 answer
  • On a coordinate plane, a line goes through (negative 4, 0) and (4, negative 4). A point is at (2, 3).
    14·2 answers
  • Kuta Software In Systems of Two Solve each system by graphing. 2) y=x+2 1) y=-3x +41 y= 3x - 2
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!