PHYSICS HIGH SCHOOL

Y = -2x + 5 and 2x + y = -7

Answers

Answer 1

Answer:

Answer:

not true

Explanation:

substitution is convenient here

2x + (-2x + 5) = -7

2x - 2x - 5 = -7

-5 = -7

not an equality, thus the lines are parallel and have no intersection

Answer 2

Answer: This is not an equality

Related Questions

You're conducting a physics experiment on another planet. You drop a rock from a height of 2.3 m and it hits the ground 1.1 seconds later. What is the acceleration due to gravity on this planet?A. 4.2 m/s2 B. 3.8 m/s2 C. 2.4 m/s2 D. 9.8 m/s2
An observer on the earth sees a spaceship approaching at 0.54c. The ship then launches an exploration vehicle that, according to the earth observer, approaches at 0.82c. What is the velocity of the exploration vehicle relative to the spaceship? Give your answer as a decimal fraction of c, i.e. a β factor.
A heart defibrillator is used to enable the heart to start beating if it has stopped. This is done by passing a large current of 12 A through the body at 25 V for a very short time, usually about 3.0 ms. (a) What power does the defibrillator deliver to the body, and (b) how much energy is transferred
Which of the following is NOT a stage of cellular respiration?a. fermentation b. electron transport c. glycolysis d. Krebs cycle
Is it ok for some help pwease?What is the area of calm winds near the equator called?doldrumspolar easterliestrade windshorse latitudes

Fluorine, chlorine, bromine, and iodine are part of a family called a. noble gases. b. metalloids. c. halogens. d. alkali metals.

Answers

Answer: Option (c) is the correct answer.

Explanation:

The elements Fluorine, chlorine, bromine, and iodine all belong to group 7. All of these are electron deficient and all of them are non-metals.

Also, it is known that elements of group 7 are also known as halogens because the word halogen means 'salt former' and compounds which contain halogens are known as salt.

Thus, we can conclude that Fluorine, chlorine, bromine, and iodine are part of a family called halogens.

c. halogens
they are under group 7

The Earth rotates on its axis every __________ and revolves around the Sun every __________.a. day . . . year
b. month . . . day
c. year . . . month
d. year . . . day

Answers

The Earth rotates on its axis every __day________ and revolves around the Sun every _____year_____.

What is Rotation and Revolution of earth ?

Rotation refer to an object's spinning motion about its own axis

Revolution refers to the object's orbital motion around another object

The earth rotates on its axis 23 hours, 56 minutes and 4 seconds which is approximately equal to one day whereas the earth revolve around sun in 365 days , 6hours , 9minutes which is nearly equal to an year.

Hence , correct option is a) day . . . year

learn more about rotation and revolution of earth:

brainly.com/question/2976977?referrer=searchResults

#SPJ2

Earth rotates about this axis once each day (approximately 24 hours)
and revolves around the sun every year ..
Hope this helped ! :)

Suppose you want to separate the leaves, acorns, and twigs from a pile of soil. Filtration and distillation are two processes of separating mixtures. Explain which process you would use and why.Have only 30 minutes to answer!!!!!
I will mark brainliest!

Answers

filtration b/c you can use different size filters

Mark him brainliest! XD

(your welcome btw)

If the deflection of a spring is doubled, then how much does the force change?

Answers

If the deflection of the spring is doubled, the force exerted by the spring will also be doubled.

What is the Hooke's Law?

The relationship between the deflection of a spring and the force it exerts is described by Hooke's Law, which states that the force exerted by a spring is directly proportional to its deflection. Mathematically, this can be expressed as:

F = kx

where F is the force exerted by the spring, x is the deflection of the spring, and k is the spring constant, which represents the stiffness of the spring.

If we double the deflection of the spring, then x becomes 2x, and the force exerted by the spring becomes:

F = k(2x) = 2kx

Thus, if the deflection of the spring is doubled, the force exerted by the spring will also be doubled (assuming the spring constant remains constant).

Learn more about the deflection here:

brainly.com/question/28334742

#SPJ6

Answer:

The force is doubled as well.

Explanation:

If you double the spring then the force doubles as well.

What is the relationship among amplitude,crest,and trough?

Answers

These are characteristics of a wave. The amplitude is how high and low the waves go. Crests are high points on the wave, and troughs are low points on the wave.

Covalent bonds tend to make atoms more stable by helping them