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
ololo11 [35]
4 years ago
9

GIVING BRAINLIEST PLZ NO FALSE ANSWERS Which statement best explains how Earth's magnetic field is generated? Earth's core spins

slower than its crust Heat exchange between the mantle and crust The convection of heat within the mantle Rotation of liquid iron in the outer core
Mathematics
1 answer:
snow_lady [41]4 years ago
8 0

Answer:

The convection of heat within the mantle Rotation of liquid iron in the outer core

Step-by-step explanation:

The electrical currents and convecting movements within the Earth's liquid core generate the planet's powerful magnetic field, which in turn drives the inner core in the way that can now be observed.

You might be interested in
The seasonal output of a new experimental strain of pepper plants was carefully weighed. The mean weight per plant is 15.0 pound
DanielleElmas [232]

Answer:

There are 118 plants that weight between 13 and 16 pounds

Step-by-step explanation:

For any normal random variable X with mean μ and standard deviation σ : X ~ Normal(μ, σ)  

This can be translated into standard normal units by :  

Z = \frac{(X - \mu)}{\sigma}

Let X be the weight of the plant  

X ~ Normal( 15 , 1.75 )  

To find : P( 13 < X < 16 )  

= P(\frac{( 13 - 15 )}{1.75} < Z < \frac{( 16 - 15 )}{1.75})

= P( -1.142857 < Z < 0.5714286 )  

= P( Z < 0.5714286 ) - P( Z < -1.142857 )  

= 0.7161454 - 0.1265490  

= 0.5895965  

So, the probability that any one of the plants weights between 13 and 16 pounds is 0.5895965  

Hence, The expected number of plants out of 200 that will weight between 13 and 16 = 0.5895965 × 200

                                            = 117.9193  

Therefore, There are 118 plants that weight between 13 and 16 pounds.

4 0
3 years ago
Module 4 End Test Study
Snowcat [4.5K]
You'd do $500 x 0.15 to which gives you 75$ in tax. $500 + $75 = $575 selling price
5 0
3 years ago
3c-d=T<br> Could you<br> solve for c
RSB [31]
- - Let's solve for C.

Starting off with our equation:
3c+d=T

Transform:
3c=T+D

Solve for that:
\frac{3c}{3} = \frac{T+D}{3}


Solve for that for the last time and your answer is \frac{T+D}{3} =C



7 0
3 years ago
Read 2 more answers
Suppose we take two different random samples from the same population of test scores. The population mean and standard deviation
Leto [7]

Answer:

The 95% confidence interval obtained with a sample size of 64 will give greater precision.            

Step-by-step explanation:

We are given the following in the question:

A 95% confidence interval is calculated with the following sample sizes

n_1 = 25\\n_2 = 64

The population mean and standard deviation are unknown.

Effect of sample size on confidence interval:

  • As the sample size increases the margin of error decreases.
  • As the margin of error decreases the width of the confidence level decreases.
  • Thus, with increased sample size the width of confidence level decreases.

If we want a confidence interval with greater precision that is smaller width, we have to choose the higher sample size.

Thus, the 95% confidence interval obtained with a sample size of 64 will give greater precision.

3 0
3 years ago
Pls help me ............
natima [27]
The answer to your question is 134:)
4 0
2 years ago
Read 2 more answers
Other questions:
  • Rename the number <br> 25,600=_______?
    10·1 answer
  • Help I don’t get this
    5·1 answer
  • 200 centimeters divided by 3
    7·2 answers
  • If f(x) = -x³ + x² + x, find f(-3).
    14·2 answers
  • Can you help me with this math problem and tell me how to do it?
    15·1 answer
  • Apples sell for $1.90 per pound, and bananas sell for $0.75 per pound. Troy bought some apples and some bananas. Together they w
    5·1 answer
  • Last year a computer was $350. The computer company raise prices this year and the price has increased by 5%. What was the price
    13·1 answer
  • 5x+9=84 please someone answer this^^!
    7·2 answers
  • What animal can I draw in this shape has to fill the whole shape for art
    11·2 answers
  • Ava wants to know the distance JK across a pond. She locates points as shown. She says that the distance
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!