Answer:
A.
Step-by-step explanation:
The Elimination Method is the method for solving a pair of linear equations which reduces one equation to one that has only a single variable.
If the coefficients of one variable are opposites, you add the equations to eliminate a variable, and then solve.
If the coefficients are not opposites, then we multiply one or both equations by a number to create opposite coefficients, and then add the equations to eliminate a variable and solve.
When multiplying the equation by a coefficient, we multiply both sides of the equation (multiplying both sides of the equation by some nonzero number does not change the solution).
So, option B is not allowed (it is not allowed to multiply only one part of the equation)
Answer:
96.52 centimeters
Step-by-step explanation:
1 inch is equal to 2.54 centimeters
38 inches = 38*2.54 cm
38 * 2.54 = 96.52
The answer is 96.52 centimeters
Hope this helps :)
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There are certain rules to follow when rotating a point 90 deg clockwise. Since it is given that ABCD is a parallelogram and the coordinates of point C are given, we just have to follow this simple relation:
R(90 deg) : (X,Y) ---> (-Y,X)
Using the given coordinates:
R(90 deg<span>) : (-4,1) ---> (-1,-4)
</span>
Therefore, Point C' will be located at (-1,-4)
Answer: a) w = -26, -2
b) x = -4, -1
c) k = 17, -1
d) z = 65, 935
Multiple choice: D)
Step-by-step explanation:
a) (w+26)(w+2) = 0
w = -26, w = -2
b) (x+4)(x+1) = 0
x = -4, x = -1
c) (k-17)(k+1) = 0
k = 17, k = -1
d) (z-65)(z-935) = 0
z = 65, x z 935
Multiple Choice
D)
Multiply all terms by 2.
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Answer:
15) ![C=frac{5}{9}(F-32)](https://tex.z-dn.net/?f=%20C%3Dfrac%7B5%7D%7B9%7D%28F-32%29)
16) 12 hours
Step-by-step explanation:
15) ![F=\frac{9}{5}C+32 \\F-32 = \frac{9}{5}C\\\frac{5}{9}(F-32)=C](https://tex.z-dn.net/?f=F%3D%5Cfrac%7B9%7D%7B5%7DC%2B32%20%5C%5CF-32%20%3D%20%5Cfrac%7B9%7D%7B5%7DC%5C%5C%5Cfrac%7B5%7D%7B9%7D%28F-32%29%3DC)
16) If Jim drove 168 mi in 4 hours, this means it takes him
![\frac{4 hours }{168 mi}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%20hours%20%7D%7B168%20mi%7D%20)
this many hours to drive 1 mile. So if we multiply this by 504 mi:
![\frac{4 hours }{168 mi} 504 mi = 4 \cdot 3 hours = 12 hours](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%20hours%20%7D%7B168%20mi%7D%20504%20mi%20%3D%204%20%5Ccdot%203%20hours%20%3D%2012%20hours%20)