A slope is also known as the gradient of a line. The two lines are perpendicular lines. Thus, the correct option is B.
What is Slope?A slope also known as the gradient of a line is a number that helps to know both the direction and the steepness of the line.
If the two of the given equations are written in the slope intercept form then,
-2y = -x + 1
y = (x/2) - (1/2)
Therefore, the slope of the first equation is 1/2.
-y=2x− 4
y = -2x + 4
Therefore, the slope of the second equation is -2.
Since, for two lines to be parallel the slope of the equation must be equal, while for the lines to be perpendicular the product of their slope must be equal to -1.
slope 1 × slope 2
= 1/2 × -2
= -1
Hence, the two lines are perpendicular lines. Thus, the correct option is B.
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Could you please help got this wrong twice.
Answer:
it is a reflection over x axis
what makes the winds and ocean currents not move in straight lines as they move from pole to equator or back?
Answer:
Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This deflection is called the Coriolis effect. Click the image for a larger view. Coastal currents are affected by local winds.
Explanation:
Answer:
Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This deflection is called the Coriolis effect. Click the image for a larger view. Coastal currents are affected by local winds.
Explanation:
I hope this helps?
Explain how the layers of the Earth are connected and affected by each other?
Explanation:
The 3 main layers are the core, mantle and crust. The mantle is composed of the mesosphere and the asthenosphere and the uppermost part of the mantle. That uppermost part of the mantle is what is combined with the crust to make the lithosphere.The inner core is solid, the outer core is liquid, and the mantle is solid/plastic. This is due to the relative melting points of the different layers (nickel–iron core, silicate crust and mantle) and the increase in temperature and pressure as depth increases We have the inner core, outer core, mantle and crust which play an important role on Earth. The layers of the Earth are responsible for the formation of our continents. ... Earthquakes can be important because of Energy (seismic energy) released during Earthquakes provides much information about the Earth's interior.
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Which feature of the ocean floor includes its deepest parts?
Answer:
Sus animales misteriosos y gigantes que se ocultan bajo el mar
Explanation:
Consider the following intermediate chemical equations.
3 equations. 1: upper C solid plus upper o subscript 2 gas right arrow upper C upper O subscript 2 gas Delta H 1 equals negative 393.5 kilojoules. 2: 2 upper C upper O gas plus upper O subscript 2 gas right arrow 2 upper C upper O subscript 2 gas Delta H 2 equals negative 566.0 kilojoules. 3: 2 upper H subscript 2 upper o gas right arrow 2 upper H subscript 2 gas plus upper O subscript 2 gas delta H 3 equals 483.6 kilojoules.
The overall chemical equation is Upper C (s) plus upper H subscript 2 upper O (g) right arrow upper C upper o (g) plus upper H subscript 2 (g).. To calculate the final enthalpy of the overall chemical equation, which step must occur?
Reverse the first equation, and change the sign of the enthalpy. Then, add.
Reverse the second equation, and change the sign of the enthalpy. Then, add.
Multiply the first equation by three, and triple the enthalpy. Then, add.
Divide the third equation by two, and double the enthalpy. Then, add.
Answer:
Hess's law:
First reaction:
Ca (s) + CO₂ (g) + ½O₂ (g) → CaCO₃ (s) ΔH₁ = -812.8 kJ
Second reaction:
2Ca (s) + O₂ (g) → 2CaO (s) ΔH₂ = -1269 kJ
Overall reaction:
CaO (s) + CO₂ (g) → CaCO₃ (s) ΔH = ?
According to the Hess law of constant heat summation, the enthalpy of the overall reaction is the sum of the enthalpy of both reactions but this will not give the enthalpy of the overall reaction in this case. The enthalpy of the overall reaction is rather obtained by halving the enthalpy of the second intermediate reaction and reversing its sign before taking the sum as shown below;
Enthalpy of Intermediate reaction 1 + ½(- Enthalpy of Intermediate reaction 2) = Enthalpy of Overall reaction
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2 trapezoids have identical angle measures but different side lengths. Trapezoid 1 has side lengths 4, 2, 6, 2. Trapezoid 2 has side lengths 8, 4, 12, 4.
Which description is true about the transformation shown?
It is a dilation because the transformation is isometric.
It is a dilation because the transformation is not isometric.
It is a stretch because the transformation is isometric.
It is a stretch because the transformation is not isometric.
Answer:
the answer is b
Explanation:
i just did the test on edge
It is a dilation because the transformation is not isometric is the description is true about the transformation shown. Hence, option B is correct.
Exercising or doing a series of exercises that include putting opposite muscles under tension to the point where there is little muscle shortening but a large increase in muscle tone.
An isometric exercise, to put it simply, involves contracting muscles without making them move. Instead, you adopt and stick with a single position. For instance, when completing a plank or a wall sit, the muscles are moving but not actively changing lengths.
Isotonic implies "same tension," but isometric means "same length," because the weight on your muscles remains constant. It's also critical to be aware that different exercises can be performed isometrically.
Thus, option B is correct.
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Which of the following is most likely the next step in the series?
What is one strategy or behavior that individuals can use or do to support a healthy environment
Answer:
Behavior or strategy that individuals can use or do to support a healthy envitonment is to mainatain sanitanion. to conduct awareness programm or can keep yoirself clean first by maintaing cleanliness. suggest people not to make a environment dirty, and lastly to support a healthy envitonment, we need to maintain a healthy eco system and recycle the waste products.
How did the Soviet invasion of Afghanistan contribute to the fall of the Soviet Union?
The Red Army lost its strength and reputation.
The Soviet Union used nuclear weapons illegally against Afghanistan.
The United States provided no military aid to Afghanistan, thereby lengthening the conflict.
The Soviet economy crumbled further due to the heavy military cost of the invasion.
Eventually, Afghanistan managed to gain the support of many Soviet satellite states.
The fall of the Soviet Union was due to the invasion of Afghanistan, which jeopardized the soviet economy with high military costs. Option D is correct.
What happened in Afghanistan during the Soviet invasion?The Soviet–Afghan War was a nine-year guerrilla war between Mujahideen insurgent groups as well as smaller insurgent groups with Marxist-Leninist-Maoist ideologies.
One of the components that altered the Soviet Union's ending was the Soviet invasion of Afghanistan, which put the Soviet economy in jeopardy by incurring high military costs.
Therefore, option D is correct.
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A person who studies the Earth's oceans is a(n)
OA. oceanographer
O B. Poseidist
OC. hydrologist
OD. meteorologist
Answer:oceanographer
Explanation: