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defon
3 years ago
14

PLS HELP Solve the equation for a. Show your work. 4a-14=7a-8

Mathematics
2 answers:
OLEGan [10]3 years ago
7 0
A=-2 Im attaching a picture with the steps

Tems11 [23]3 years ago
3 0

Answer:

a=-2

Step-by-step explanation:

4a-14=7a-8

Subtract 7a from both sides:

4a-14-7a=7a-8-7a

Group like terms:

4a-7a-14=7a-8-7a

Simplify the arithmetic:

-3a-14=7a-8-7a

Group like terms:

-3a-14=7a=-7a-7a-8

Simplify the arithmetic:

-3a-14=-8

Add 14 to both sides:

-3a-14+14=-8+14

Simplify the arithmetic:

-3a=-8+14

Simplify the arithmetic:

-3a=6

Divide both sides by-3:

Cancel out the negatives:

Simplify the fraction:

Simplify the signs:

Find the greatest common factor of the numerator and denominator:

Factor out and cancel the greatest common factor:

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1. Determine the magnitude of the resultant force acting on the plate and its direction, measured counter-clockwise from the pos
AlexFokin [52]
F1 . . . 100% of it = 900N is in the +x direction.

F2 . . . 70.7% of it (cos45°, 530.3N) is in the +x direction,
and 70.7% of it (sin45°, 530.3N) is in the +y direction.

F3 . . . 80% of it (520N) is in the -x direction,
and 60% of it (390N) is in the +y direction.

Total x-component:  900 + 530.3 - 520  =  1,950.3 N

Total y-component:  530.3 + 390  =  920.3 N

Magnitude of the resultant = √ (x²  +  y²)

                                       = √(1950.3²  +  920.3²)

                                       =  √4,650,070.09

                                       =   2,156.4 N  .

Angle of the resultant, measured counterclockwise
from the +x axis, is 
 
                               tan⁻¹  (y / x)

                         =    tan⁻¹  (920.3 / 1950.3)

                         =    tan⁻¹  (0.4719)

                         =    about    25.3°  .

Caution:
The same fatigue that degrades my ability to READ the question accurately
may also compromise the accuracy of my solutions.  Before you use this
answer for anything, check it, check it, check it !

 
4 0
4 years ago
an object exerts a force of 10 N on an area of 2 square meters. what is the pressure the object exerts on the surface?
motikmotik

Pressure = Force/Area

P = 10 / 2 N/m²

P = 5 N/m²

5 0
3 years ago
What is the slope of a linear that is perpendicular to the line y=-1/2x+5?​
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Step-by-step explanation:

Equation of given line is:

y =  -  \frac{1}{2} x + 5 \\  \\ equating \: it \: with \: y =m_1x + c  \\ we \: find \:  \\ m_1 = -  \frac{1}{2} \\ let \: m_2 \: be \: the \: slope \: of \: required \: line \\  \\  \therefore \: m_1 \times m_2 =  - 1( \because \: lines \: are \:  \perp) \\  \\ \therefore \: -  \frac{1}{2} \times m_2 =  - 1\\  \\ \therefore \: m_2 = 2 \\

Thus, the slope of required line is 2.

6 0
3 years ago
Please in desperate<br><br> Evaluate C(20, 18).
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6 0
4 years ago
Which expression represents this word
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The answer to this would be B the quotation is the division between x/3 and to get 8 less than that you would just subtract 8
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