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
djverab [1.8K]
3 years ago
8

If the radius of the circle is 7 cm, find its area, rounded to 2 decimal places.

Mathematics
1 answer:
stich3 [128]3 years ago
8 0

Answer:

153.94

Step-by-step explanation:

The formula for area is pi*radius^2

the radius is 7, so we do pi7^2 which is 49pi

49pi is 153.93804 which is 153.94 rounded to two decimal places

You might be interested in
HERE HELP PLEASE<br> plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
nevsk [136]
A function is a relation for which each value from the set the first components of the ordered pairs is associated with exactly one value from the set of second components of the ordered pair.
3 0
2 years ago
the populatipn of a school of fish increases at a rate of 18% a Month. There are currently 500 fish in the school.
ruslelena [56]
You first must find the 18% of the fish population.

You multiply 500 by .18 . You are supposed to get 90.

90 is the 18% fish increase.

Then you just add 500 + 90 and you will get 590 fish that are now in the school.
8 0
2 years ago
A sample of 16 items from population 1 has a sample variance 5.8 and a sample of 21 items from population 2 has a sample varianc
Nady [450]

Answer:

Reject the null hypothesis.

Step-by-step explanation:

n1 = 16

n2 = 21

S.V1 = 5.8

S.V2 = 2.4

\alpha = 0.05

H_{0} = Population Variance 1 ≤  Population Variance 2

H_{a} = Population Variance 1 >  Population Variance 2

Test statistic value = 5.8 / 2.4 = 2.417

Degrees of freedom is n - 1

15 and 20

Critical value is F_{0.05} = 2.2

2.417 > 2.2

we reject the null hypothesis as the critical value is greater than the test statistic.

3 0
3 years ago
R.a.t.e me 1 - 10 i.d.k why
ivann1987 [24]
10/10 you look pretty! Anyone looks pretty have a wonderful day!
4 0
3 years ago
Please answer 5,6,7. With explanation.
Anestetic [448]
First you need to know some rules 2 numbers that are the same with coefficients divided : you differentiate those coeff
and multyplied :you sum up them

12x^8/3x^3= 4x^8-3=4x^5

20^2x=20^x*20^x

m^5*m^-7=m^5-7=m^-2







8 0
3 years ago
Other questions:
  • A local hamburger shop sold a combined total of 601 hamburgers and cheeseburgers on Friday. There were 51 more cheeseburgers sol
    9·1 answer
  • A conical cup is 15 cm long. It has a radius of 4 cm. How many liters of water will the cup hold? 1 liter = 1000 cm3.
    9·1 answer
  • The exponent indicates how many times the what is used
    7·1 answer
  • 1. Students are allowed to choose 12 snacks a week at school. They may choose
    7·1 answer
  • Find b and c, with showing your work.​​
    6·1 answer
  • What the answer please​
    6·2 answers
  • In which story is the answer to the question 0?
    8·1 answer
  • The model represents the equation x - 1 &lt; -4. What is the solution for the inequality?
    9·1 answer
  • Nathaniel works as a baker and makes several batches of muffins every morning. each batch requires 1 1/7 cups of sugar. for a la
    11·1 answer
  • y= -4x-2y= -4x-5Graph each system. Tell whether the system has A. No solution B. One solution C. Infinitely many solutions D. Ca
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!