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
BigorU [14]
3 years ago
5

To the nearest tent what the area of a circle whose diameter is 9 feet? Use 3.14 for x Please help :’(((( will give 25pts

Mathematics
2 answers:
makkiz [27]3 years ago
8 0

Answer:

area of circle =πr²

Step-by-step explanation:

3.14×4.5×4.5

63.585 in ft

Fynjy0 [20]3 years ago
6 0

Step-by-step explanation:

Diameter of circle = 9 ft

Therefore, radius = 9/2 = 4.5 ft

area \: of \: circle  \\ = \pi {r}^{2}  \\  = 3.14 \times  {4.5}^{2}  \\  = 3.14 \times 20.25 \\  = 63.585 \\  = 63.6 {ft}^{2}  \\

You might be interested in
Solve for θ. <br>sin(74) = cos(θ) <br><br>1. 6° <br>2. 74° <br>3. 36° <br>4. 16° ​
Marianna [84]

Sin74 = Cos16

cause 16 + 74 = 90

Whenever the sum of two angles is equal with 90, the Sin of one is equal with the Cos of the other like :

Sin(30) = Cos(60)

and also

Tan(30) = Cot(60)

5 0
3 years ago
Read 2 more answers
The quantity r varies jointly with t and u and inversely with s when t= -12, u= -7, and s= -4, r= -126. Find r when t= -8, u= 8,
vichka [17]

Answer:

r = 64

Step-by-step explanation:

r = (k*t*u)/s

Where,

k = constant of proportionality

t = -12,

u= -7,

s= -4,

r= -126.

r = (k*t*u)/s

-126 = (k*-12*-7)/-4

-126 * -4 = 84k

504 = 84k

k = 504/84

k = 6

Find r when t= -8, u= 8, and s= -6.

r = (k*t*u)/s

= (6*-8*8) / -6

= -384 / -6

= 64

r = 64

6 0
3 years ago
Please help meeee it’s question #7
Ugo [173]

Answer:

In my own opinion i time 104 and 72and if gives me7488

3 0
3 years ago
Automobile engineers wanted to check the effect of a new automatic transmission on mileage. They selected 50 cars of the same ma
daser333 [38]

Answer:

d. Twenty-five cars are randomly selected with the new transmission and 25 with the old transmission.

Step-by-step explanation:

A hypothesis test on the difference between the means must satisfy the following conditions

1) the samples must be randomly selected

2) each sample must have a known standard deviation

3) the samples must be independent

4) the samples must be from normal distribution

Hence only part d gives the right answer.

3 0
3 years ago
lexi has $13.00 less that renee. together, they have a total of $95.00. how much money does renee have?
ivanzaharov [21]

Answer:

if I am right Renee would have 82.00 because Lexi has 13.00 less than Renee and together their money's adds up to 95.00 so if you take 13.00 from 95.00 you will have 82.00 that in my opinion

5 0
3 years ago
Other questions:
  • Julie, the soccer team's captain, wants to borrow her parents' car to drive to the tournament. Her parents tell her that she has
    12·1 answer
  • The chart shows the number of points Jerry scored on each test this week out of the number of points possible for the test.
    7·1 answer
  • PLease help me LOTS of points
    9·1 answer
  • Find the area of the triangle defined by the given system?
    9·1 answer
  • State whether either extreme in the data set is an outlier.
    7·1 answer
  • Please help and explain!! I got 14x +0​
    12·2 answers
  • The international cricket team is going to stadium to play the T20 cricket game. A coordinate grid is superimposed on a highway
    5·1 answer
  • 3t - 7 = 5t, then 6t= ?
    12·2 answers
  • In a laboratory Solution A will be mixed with Solution B in a ratio of 3 ml to 2 ml. How much of Solution A should be mixed with
    12·1 answer
  • Layla is cutting bows out of ribbon which will be used to wrap gifts. If Layla needs 1/3 of a foot of ribbon to make a bow, and
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!