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]
2 years ago
11

Math

Mathematics
1 answer:
denis-greek [22]2 years ago
7 0

Answer:

\bullet \ \large\text{The mean in period 2 is higher than the mean in period 1.}

Step-by-step explanation:

<u><em>the mean in period</em></u> 1 :

(2.3+2.1+2.2+2.2+2.2+2.1+2.4+2.5+2.2+2.0+1.9+1.9+2.1+2.2+2.3)÷15=21.733...

<u><em>the mean in period</em></u> 2 :

(2.3+2.1+3.3+1.5+3.6+1.6+3.0+1.1+4.7+2.1+2.4+1.9+2.8+0.5+2.3)÷15=23.466...

Since 23.466 > 21.733 then “The mean in period 2 is higher than the mean in period 1”.

You might be interested in
2(67+8)*3 plz help<br> A. 450<br> B.908<br> C.154<br> D 679
sasho [114]

Answer:

A. 450

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
Solve –2k + 12 &lt; 30 for k.
PIT_PIT [208]

Answer:

k > -9

Step-by-step explanation:

Subtract 12 from both sides as we want to isolate k-

30 - 12 = 18

-2k < 18

Divide both sides by -2

18/-2 = -9

k > -9

5 0
4 years ago
Read 2 more answers
The measure of angle zero is 600°. The point XY corresponding to zero on the unit circle is
Andrej [43]

<u>Answer:</u>

x= -\frac{1}{2}\\\\ y= -\frac{\sqrt{3}}{2}

<u>Step-by-step explanation:</u>

We are given that the measure of angle θ is 600° and we are to fin the point (x, y) corresponding to angle θ on the unit circle,

We know that the x,y coordinates in the unit circle are the cosine and sine ratios, respectively.

θ = 600

1 unit circle= 360°

It means that 600° corresponds to 600° - 360° = 240°.

So, θ =  360° + 240°

180° < 240° < 270° (this tells that the point is in the third quadrant and its coordinates are negative)

240° - 180° = 60° (using the supplementary angles to find the sin and cos)\sin 60^\circ = \frac{\sqrt{3}}{2}\\\\\cos 60^\circ= \frac{1}{2}

Therefore, the x-coordinate is the cos of the given angle while y-coordinate is the sine of the given angle and the coordinates are:

x= -\frac{1}{2}\\\\ y= -\frac{\sqrt{3}}{2}

3 0
3 years ago
2. The side lengths of a square measure 25.3 cm. Estimate the area of the
Katarina [22]

Answer:

625 sq ft.

Step-by-step explanation:

25 cm is close to 25.3 so our estimate is 25 * 25 = 625.

5 0
3 years ago
May you please help im begging ii will give out branilyist
Delicious77 [7]

Answer:

A

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • ∠5 ​ and​ ​ ∠6 ​ ​are complementary adjacent angles. m∠5=13° What is the measure of ​ ∠6 ​? Enter your answer in the box.
    14·2 answers
  • Find the value of 1225 by using prime factorization
    7·2 answers
  • What x-value makes the set of ratios equivalent? 2 : 3 = 6 : x 4 : 7 = x : 42 2x : 48 = 3 : 12 12 : 15 = x : 20
    7·1 answer
  • Change each of the following angles in degrees to angles in radians
    11·1 answer
  • Carmen gaetano worked 46 hours during this pay week. he is paid time and a half for hours over 40 and his pay rate is 17.90/hour
    14·1 answer
  • Which expression has the greatest values?<br>NEED HELP ASAP!<br>(look at picture)​
    9·1 answer
  • 513,428 rounded to the nearest thousand
    5·2 answers
  • which measure of central tendency best describes the situation, the ages of 7 people who auditioned for a role in a play: 17,20,
    10·1 answer
  • A video has 42 thumbs down. What integer represents its score in points?
    12·1 answer
  • 7over10 subtract 5over12 in simplest form
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!