Answer:
There are two ways to solve this question. The faster way is to multiply each side of the given equation by ax−2 (so you can get rid of the fraction). When you multiply each side by ax−2, you should have:
24x2+25x−47=(−8x−3)(ax−2)−53
You should then multiply (−8x−3) and (ax−2) using FOIL
("First, Outer, Inner, Last")
24x2+25x−47=−8ax2−3ax+16x+6−53
Then, reduce on the right side of the equation
24x2+25x−47=−8ax2−3ax+16x−47
Since the coefficients of the x2-term have to be equal on both sides of the equation, −8a=24, or a=−3.
The other option which is longer and more tedious is to attempt to plug in all of the answer choices for a and see which answer choice makes both sides of the equation equal. Again, this is the longer option, and I do not recommend it for the actual SAT as it will waste too much time.
soo the final answer is B -3
Answer:
10
Explanation:
Engine generates 100,000\ W power
Force exerts F=10,000\ N
Distance traveled d=100\ m
work done is given by
W=F\cdot d\\W=10,000\times 100\\W=10^5\ J
Also, Energy is given as
\Rightarrow E=P\cdot t
Insert the values
\Rightarrow 10^6=100,000\times t\\\\\Rightarrow t=\dfrac{10^6}{10^5}\\\\\Rightarrow t=10\ s
In terms of communication, information is expressed either as the content of a message or through direct or indirect observation. That which is perceived can be construed as a message in its own right, and in that sense, information is always conveyed as the content of a message.
Information can be encoded into various forms for transmission and interpretation (for example, information may be encoded into a sequence of signs, or transmitted via a signal). It can also be encrypted for safe storage and communication.
D. the test is made up of multiple-choice questions that are based on a series of passages
The dihedral angle of a regular tetrahedron is 70.5 degrees.
<h3>
Dihedral angle</h3>
A dihedral angle is defined as the angle between two planes. When two intersecting planes meet, it forms an angle known as dihedral angle.
A regular tetrahedron is a tetrahedron in which all four faces are equilateral triangles.
The dihedral angle of a regular tetrahedron is 70.5 degrees.
Find out more on Dihedral angle at: brainly.com/question/8588225