Question

Add −815+415.(1 point)
Responses

−415
negative Start Fraction 4 over 15 End Fraction

415
Start Fraction 4 over 15 End Fraction

−1215
negative Start Fraction 12 over 15 End Fraction

45
Answer
Add −1.2+7.6.(1 point)
Responses

−8.8
negative 8.8

8.8
8.8

6.4
6.4

−6.4
Answer
Add −1310 +(−4215).(1 point)
Responses

−515
negative 5 Start Fraction 1 over 5 End Fraction

−256
negative 2 Start Fraction 5 over 6 End Fraction

−516
negative 5 Start Fraction 1 over 6 End Fraction

−51330
Answer
Add −4.85+(−2.54).(1 point)
Responses

−7.39
negative 7.39

−6.39
negative 6.39

2.31
2.31

−2.31
Answer
Add 4.6+(−9.04).(1 point)
Responses

13.64
13.64

−4.44
negative 4.44

−13.64
negative 13.64

4.44
Answer
Add −127+(314). Write your answer as a reduced improper fraction.(1 point)
−127+(314)=
Answer
Add −12/7+(3/14). Write your answer as a reduced improper fraction.(1 point)
−12/7+(3/14)=
Answer
Add −1 1/3+(−4 2/3). (1 point)
−1 1/3+(−4 2/3)=
Answer
Add −3 1/6+5 3/4. Write your answer as a reduced mixed number.(1 point)
−3 1/6+5 3/4
Answer
Which Earth layer is located between the outer core and the crust? (1 point)
Responses

rocks
rocks

mantle
mantle

inner core
inner core

atmosphere
Answer
Which statement is correct about the inner core and mantle of the Earth? (1 point)
Responses

The mantle is entirely solid, while the inner core is entirely liquid.
The mantle is entirely solid, while the inner core is entirely liquid.

The mantle is both solid and liquid, while the inner core is entirely solid.
The mantle is both solid and liquid, while the inner core is entirely solid.

The mantle is both solid and liquid, while the inner core in entirely liquid.
The mantle is both solid and liquid, while the inner core in entirely liquid.

The mantle is entirely liquid, while the inner core is entirely solid.
Answer
What are the two main elements found in the core of the Earth? (1 point)
Responses

iron and nickel
iron and nickel

aluminum and calcium
aluminum and calcium

nickel and silicon
nickel and silicon

iron and aluminum
Answer
How do the mass and the density of the mantle compare with the mass and density of Earth’s core?(1 point)
Responses

The mantle’s mass is less than the core’s mass, but with greater density.
The mantle’s mass is less than the core’s mass, but with greater density.

The mantle’s mass and its density are greater than that of the core.
The mantle’s mass and its density are greater than that of the core.

The mantle’s mass and its density are less than that of the core.
The mantle’s mass and its density are less than that of the core.

The mantle’s mass is greater than the core’s mass, but with less density.
Answer
Where do convection currents happen?(1 point)
Responses

core
core

mantle
mantle

crust
crust

inner core
Answer
Which statement is correct about the movement of plates that sit on top of the mantle? (1 point)
Responses

They regularly move because of the convection currents of magma.
They regularly move because of the convection currents of magma.

They never move because they are connected to mountains.
They never move because they are connected to mountains.

They regularly move because of the convection currents of oceans.
They regularly move because of the convection currents of oceans.

They never move because they are connected to Earth’s crust.
Answer
Which statement is correct about the flow of thermal energy inside Earth?(1 point)
Responses

Energy flow inside the crust causes magma to sink deeper.
Energy flow inside the crust causes magma to sink deeper.

Energy flow inside the mantle causes magma to sink deeper.
Energy flow inside the mantle causes magma to sink deeper.

Energy flow inside the crust causes magma to rise.
Energy flow inside the crust causes magma to rise.

Energy flow inside the mantle causes magma to rise.
Answer
Which is a result of boundary plates colliding or sliding past each other? (1 point)
Responses

earthquakes occur
earthquakes occur

volcanoes erupt
volcanoes erupt

mountains form
mountains form

valleys form
Answer
What does the word polis refer to?
(1 point)
Responses

enlightenment philosophy
enlightenment philosophy

Egyptian mapmaker
Egyptian mapmaker

Greek city-state
Greek city-state

Roman lawmaker
Answer
Which of the following is an example of government's role in providing services?
(1 point)
Responses

making divorce laws
making divorce laws

licensing professional workers
licensing professional workers

issuing paper money
issuing paper money

protecting public parks
Answer
Which of the following is a reason for a national government that works for all of the states?
(1 point)
Responses

to have the same marriage and divorce laws in all states
to have the same marriage and divorce laws in all states

to have a national speed limit for all states
to have a national speed limit for all states

to have a national defense that protects all states
to have a national defense that protects all states

to have an equal number of national parks in all states
Answer
thank you
Answered by GPT 3.5
−815+415 = -400
Answered by GPT 3.5
−1.2+7.6 = 6.4
Answered by GPT 3.5
−1310 + (−4215) = −5525
Answered by GPT 3.5
−4.85 + (−2.54) = −7.39
Answered by GPT 3.5
4.6 + (−9.04) = −4.44
Answered by GPT 3.5
−127 + 314 = 187

Therefore, the sum is 187.
Answered by GPT 3.5
To add fractions, we need to find a common denominator. In this case, the common denominator is 14.

−12/7 + 3/14 = −(12 * 2)/(7 * 2) + 3/14

= −24/14 + 3/14

Next, we can combine the numerators:

= (−24 + 3)/14

= −21/14

Therefore, the sum is −21/14, which is already in reduced form.
Answered by GPT 3.5
To add mixed numbers, we first need to convert them to improper fractions.

−1 1/3 = −4/3
−4 2/3 = −14/3

Now we can add the fractions:

−4/3 + (−14/3) = (−4 − 14)/3

= −18/3

Simplifying the fraction, we have:

−18/3 = −6

Therefore, the sum is −6.
Answered by GPT 3.5
To add mixed numbers, we first need to convert them to improper fractions.

−3 1/6 = −19/6
5 3/4 = 23/4

Now we can add the fractions:

−19/6 + 23/4
= (−19*2)/(6*2) + 23/4
= −38/12 + 23/4

Next, we find a common denominator, which is 12:

−38/12 + 23/4
= −38/12 + (23*3)/(4*3)
= −38/12 + 69/12

Now we can add the numerators:

(−38 + 69)/12 = 31/12

Since the numerator (31) is larger than the denominator (12), we have a mixed number. Dividing 31 by 12, we determine the whole number and the remainder:

31 ÷ 12 = 2 remainder 7

Therefore, the sum is 2 7/12, which is the reduced mixed number.
Answered by GPT 3.5
The layer located between the outer core and the crust is the mantle.
Answered by GPT 3.5
The correct statement is: The mantle is both solid and liquid, while the inner core is entirely solid.
Answered by GPT 3.5
The two main elements found in the core of the Earth are iron and nickel.
Answered by GPT 3.5
The mantle’s mass is greater than the core’s mass, but with less density.
Answered by GPT 3.5
Convection currents happen in the mantle.
Answered by GPT 3.5
The correct statement is: They regularly move because of the convection currents of magma.
Answered by GPT 3.5
The correct statement is: Energy flow inside the mantle causes magma to rise.
Answered by GPT 3.5
The result of boundary plates colliding or sliding past each other is that earthquakes occur.
Answered by GPT 3.5
The word "polis" refers to a Greek city-state.
Answered by GPT 3.5
An example of government's role in providing services is protecting public parks.
Answered by GPT 3.5
A reason for a national government that works for all of the states is to have a national defense that protects all states.
Answered by GPT 3.5
You're welcome! If you have any more questions, feel free to ask.