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yanalaym [24]
3 years ago
12

choose the equation below that represents the line passing through the point (1, −4) with a slope of 1/2. a.) y − 4 = 1/2(x − 1)

b.) y 4 = 2(x − 1) c.) y 4 = 1/2(x − 1) d.) y − 4 = 2(x 1)
Mathematics
1 answer:
Ganezh [65]3 years ago
3 0
Point (1, -4)
Slope=1/2
y=mx+c
y=1/2x +c
-4=1/2(1)+c
-4=1/2+c
c=-4-1/2
c=-4 1/2
y=\frac{1}{2} x- \frac{9}{2}
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Which of the following graphs is the inverse of f(x) = x2 + 4?
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Answer:

Step-by-step explanation:

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3 years ago
?.?.?.?.??.?..?.?.???..?..?
Mice21 [21]

Answer:

82

Step-by-step explanation:

Sides AB and BC are equal, which means angle BAC and BCA have the same measure, as stated in the base angles theorem. Angle BAC is 49 degrees, so angle BCA must also be 49 degrees. The sum of all angles in a triangle is 180 degrees, so angles BAC, BCA, and CBA will add up to 180. Write this in an equation:

BAC+BCA+CBA=180

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lmk if i made any errors, hope this helps :)

6 0
3 years ago
Ok the photo is bad but please help me because my mom is going to spank me if I don’t get a good grade and I need this assignmen
Tpy6a [65]

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8 0
3 years ago
X+y+z=1
andrezito [222]

Answer: x = 0

y = 2

z = -1

Step-by-step explanation:

The system of equations are

x+y+z=1 - - - - - - - - - - 1

-2x+4y+6z=2 - - - - - - - - - 2

-x+3y-5z=11 - - - - - - - - - 3

Step 1

We would eliminate x by adding equation 1 to equation 3. It becomes

4y -4z = 12 - - - - - - - - - 4

Step 2

We would multiply equation 1 by 2. It becomes

2x + 2y + 2z = 2 - - - - - - - - - 5

We would add equation 2 and equation 5. It becomes

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Step 3

We would multiply equation 4 by 6 and equation 6 by 4. It becomes

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24y + 32z = 16 - - - - - - - - 8

We would subtract equation 8 from equation 7. It becomes

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z = -56/56 = -1

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24y - 24×-1 = 72

24y + 24 = 72

24y = 72 - 24 = 48

y = 48/24 = 2

Substituting y = 2 and z = -1 into equation 1, it becomes

x + 2 - 1 = 1

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4 0
4 years ago
Solve for missing variable d=rt, r=57, t=4
____ [38]

D=228

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8 0
3 years ago
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