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
jekas [21]
3 years ago
15

COUGH COUGH CORONA I HAVE CORONA HERE SOME POINTS

Mathematics
1 answer:
Helga [31]3 years ago
6 0
Thanks for the points lol
You might be interested in
Jade says that the absolute value of a number and the opposite of a number is the same thing. Is Jade correct? Use examples to h
avanturin [10]

Answer:

No, the absolute value of a number is different from the opposite.

Step-by-step explanation:

For example, the absolute value of 4 is 4.

l4l = 4

But the opposite of 4 is -4.

Absolute value is ALWAYS positive, but the opposite of a positive number is a negative number.

8 0
3 years ago
Please help with this math question asap
MaRussiya [10]

Answer:

150

Step-by-step explanation:

us I'd send bag I'd send veg svdudhvgdkdbdbdudduddh

7 0
2 years ago
A study was conducted to determine whether magnets were effective in treating pain. The values represent measurements of pain us
gregori [183]

Answer and Step-by-step explanation: The null and alternative hypothesis for this test are:

H_{0}: s_{1}^{2} = s_{2}^{2}

H_{a}: s_{1}^{2} > s_{2}^{2}

To test it, use F-test statistics and compare variances of each treatment.

Calculate F-value:

F=\frac{s^{2}_{1}}{s^{2}_{2}}

F=\frac{1.26^{2}}{0.93^{2}}

F=\frac{1.5876}{0.8649}

F = 1.8356

The <u>critical value of F</u> is given by a F-distribution table with:

degree of freedom (row): 20 - 1 = 19

degree of freedom (column): 20 - 1 = 19

And a significance level: α = 0.05

F_{critical} = 2.2341

Comparing both values of F:

1.856 < 2.2341

i.e. F-value calculated is less than F-value of the table.

Therefore, failed to reject H_{0}, meaning there is <u>no sufficient data to support the claim</u> that sham treatment have pain reductions which vary more than for those using magnets treatment.

4 0
3 years ago
6 divided by2/3 equals
Sati [7]
You do kcf so 6/2/3 equal to 9
8 0
3 years ago
Read 2 more answers
1. How much heat is absorbed by a 50g iron skillet when its temperature rises from 10oC to 124oC? Joules
hoa [83]
<span>1. How much heat is absorbed by a 50g iron skillet when its temperature rises from 10oC to 124oC? Joules

Formula: Heat = mass * specific heat * ΔT

Data:
mass = 50 g = 0.050 kg
specific heat of iron = 450 J/ kg °C
ΔT = 124°C - 10°C ¿ 114 °C

=> heat = 0.050kg * 450 J / kg°C * 114°C ≈ 2.6 J

2. If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 492J of energy to the room? Joules

The firs law of thermodynamics is conservation of energy => energy removed from inside of the refrigerator = energy released to the room

=> Answer = 492 J

3. How much heat is needed to raise the temperature of 45g of water by 63oC? Joules

Formula: heat = mass * specific heat * ΔT

specific heat of water = 4186 J / Kg °C

heat = 0.045 kg * 4186 J/kg °C * 63°C = 11,867.31 J
</span>
7 0
3 years ago
Other questions:
  • Six friends at movies they have half a bag of popcorn's how much will each friend get
    11·2 answers
  • Can you help me Solve this and show the stepd
    6·1 answer
  • Please answer correctly i need help with these.
    10·2 answers
  • Five comedians (Joe, Beth, Seth, Lucia and Darth) are planning a show. The order of each performance is randomly selected. How m
    9·2 answers
  • What’s the difference between 76 and -18
    15·2 answers
  • Find the value of x such that the data set has a mean of 103.<br><br> 99,122,103,113,109,x
    15·1 answer
  • I need help on this, pls :)<br> what is the value of a?
    15·1 answer
  • Please help I’ll give brainliest
    13·2 answers
  • HELP ME ASAP I NEED HELP PLEASE SOMEONE
    14·2 answers
  • Which is larger? a or -a
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!