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Trava [24]
3 years ago
7

What is the approximate area of a circle whose radius is 3 m long? (Use 3.14 for pi.)

Mathematics
1 answer:
VashaNatasha [74]3 years ago
4 0
Area of a circle (formula) = \pir²
                                        =(3)²\pi
                                        =9\pi    (using 3.14 as \pi)
                                        =28.26 m²
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Lines c and d are parallel lines cut by transversal p. Which much be true by the corresponding angles theorem?
Flura [38]
Hello!
The corresponding angle theorem states that if two parallel lines are cut my a transversal, then the corresponding angles are congruent. Therefore, the correct answer is:
B. ∠2 = ∠6

If this was correct, please give it 5 stars!
4 0
3 years ago
Read 2 more answers
(02.06)How many pounds are there in 2 and 3 over 4 tons? (1 ton = 2000 pounds)​
Veseljchak [2.6K]

Answer:

5500 pounds

Step-by-step explanation:

if you mean 2¾

in 2 tons there's 4000 pounds

in ¾ of a ton there is 1500 pounds

4000 + 1500 = 5500 pounds

3 0
2 years ago
Last Wednesday, a random sample of 24 students were surveyed to find how long it takes to walk from the Fretwell Building to the
Ray Of Light [21]

Answer:

E

Step-by-step explanation:

Solution:-

- We are to investigate the confidence interval of 95% for the population mean of walking times from Fretwell Building to the college of education building.

- The survey team took a sample of size n = 24 students and obtained the following results:

                Sample mean ( x^ ) = 12.3 mins

                Sample standard deviation ( s ) = 3.2 mins

- The sample taken was random and independent. We can assume normality of the sample.

- First we compute the critical value for the statistics.

- The z-distribution is a function of two inputs as follows:

  • Significance Level  ( α / 2 ) = ( 1 - CI ) / 2 = 0.05/2 = 0.025

Compute: z-critical = z_0.025 = +/- 1.96

- The confidence interval for the population mean ( u ) of  walking times is given below:

                      [ x^ - z-critical*s / √n  ,   x^ + z-critical*s / √n  ]

Answer:        [ 12.3 - 1.96*3.2 / √24  ,  12.3 + 1.96*3.2 / √24  ]

                   

3 0
3 years ago
What is 6x3-69+12x4-7x(9x3)+7-1?
aksik [14]

Answer:

44

Step-by-step explanation:

6 times 3 is 18 so.. 18 minus 69 would be -36 plus 12 is a positive 1 times 14 would be 14 minus 7 would be 7 7 times 27 would 38 plus 7 would be  45 minus one would be 44

4 0
2 years ago
Read 2 more answers
Could someone help me with this?
natulia [17]
Distributive property was the first property used in STEP 1, where -4 was distributed to -3x+ 2 resulting in the equation in STEP 1. Next in STEP 2, commutative property of addition no matter how 12x and 6x are arranged, when you add them together the result will be the same. 
*Take note that 12x and 6x are put together because they are like terms. 

For Steps 3 and 4, you will see that the addition property of equality was used in STEP 3. To keep the equation equal, you will add the same number on both sides.

STEP 4 uses Division property of Equality. Like Step 3, to keep both sides of the equation equal, you must divide both sides with the same number. It keeps the statement true by doing so. 

STEP 4 and 5 uses transitive property if you examine both as a whole. 
Transitive property assumes that if a = b and b = c, then a = c

If   18/18 (a) = 1 (b),  and x (c) = 18/18(a)  then, x (c) = 1 (b). 
5 0
3 years ago
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