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
Ann [662]
2 years ago
12

The mean of 5,7,9 show that the mean of these numbers is 7

Mathematics
1 answer:
olasank [31]2 years ago
3 0

Answer: 7

Step-by-step explanation:

5+7+9=21

3 total numbers to start with so;

21/3=7

You might be interested in
The space shuttle is accelerated off its launch pad to a velocity of 525 m/s in 18.0 seconds.
deff fn [24]

Answer:

<h2> 29.17m/s²</h2>

Step-by-step explanation:

Acceleration is defined as the change in velocity of a body with respect to time.

Acceleration = velocity/time

Given velocity of the space shuttle = 525m/s and time = 18.0seconds

Its average acceleration = 525/18

Its average acceleration (in m/s²) = 29.17m/s²

6 0
3 years ago
A bag contains 13 dark chocolates, 16 white chocolates, and 11 milk chocolates. Maggie’s class teacher, Jill, is very strict, an
Katarina [22]
We are given with a bag containing 13 dark chocolates, 16 white chocolates, and 11 milk chocolates. hence the sample space is 13 + 16 + 11 equal to 40 chocolates. The <span> probability that she randomly picks a white chocolate is 16/40 or 2/5 and that she picks a milk chocolate is 11/40. Hence the probability of picking either is (16+11) /40 equal to 27/40</span>
5 0
3 years ago
Solve the equation for x<br>√x+4-7=1 <br>Options:<br>x=4<br>x=12<br>x=60<br>x=68​
KIM [24]

Answer:

i honestly dont know its tooooo hard

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
i will give brainliest to first correct answer!! what is the length of YZ? i will report if you give a fake answer
luda_lava [24]

Answer:

25

Step-by-step explanation:

7 0
2 years ago
A newspaper published an article about a study in which researchers subjected laboratory gloves to stress. Among 260 vinyl​ glov
yawa3891 [41]

Answer:

Step-by-step explanation:

pop 1 n₁ = 260, p₁ = 58% = 0.58

pop 2 n₂ = 260, p₂ = 8% = 0.08

Null hypothesis: p₁ ≤ p₂

Alternative hypothesis: p₁ > p₂

The test statistic : p₁-p₂ / √{p-sample (1 - p-sample) (1/n₁ + 1/n₂)}

where p-sample is sample proportion = p₁n₁ +p₂n₂ / n₁+n₂

Thus, p-sample = 0.58x260 +0.08x260 / 260+260 =150.8+20.8 / 520 = 171.6 / 520 = 0.33.

Thus, the test statistic is (0.58 - 0.08) / √[0.33 (1-0.33) (0.0038+0.0038)

  = 0.5 / √[0.33(0.67) (0.0076)

= 0.5 / √0.00168036

= 0.5 / 0.04099

= 12.20

P = P(Z>12.20) = 1-P(Z≤12.20) at a significance level of 0.1= the p-value is less than the hypothesized thus, we have sufficient evidence to reject the null hypothesis and concluding that vinyl gloves have a greater virus leak than latex gloves.

5 0
3 years ago
Other questions:
  • That are the greatest common factors of 16 28 and 48
    11·2 answers
  • On a particular day, the wind added 5 miles per hour to Jaime's rate when she was rowing with the wind and subtracted 5 miles pe
    6·1 answer
  • A gym membership cost $19 each month. If Miss Lacey joins the gym for one year, will she pay more or less than $190? Explain you
    12·1 answer
  • Dwayne starts assembling marketing packets at 11 a.m. Ashlie starts assembling marketing packets at 11:30 a.m. and assembles at
    7·1 answer
  • Can someone find the slope of these points- (8,20) and (4,61)
    8·2 answers
  • Need help with all these questions.
    8·1 answer
  • i 5. Greta made a design with squares. She I colored 8 out of the 12 squares blue. What 3. fraction of the squares did she Color
    11·1 answer
  • Total principal in both accounts​
    12·1 answer
  • 4. A certain bacteria doubles every day. If there are 810 bacteria on day one, how long will it take the bacteria to grow to 206
    10·1 answer
  • The lengths of two sides of a triangle are 7.8 cm and 5.6 cm. Between what two measures should the length of the third side fall
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!