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aksik [14]
3 years ago
13

Solve for x. x + 8 = 12

Mathematics
2 answers:
spayn [35]3 years ago
8 0
X=12-8
X=4
X is equal to 4
VashaNatasha [74]3 years ago
4 0

Answer:

Step-by-step explanation:

move constant to the right and change the sign

X=12-8

X=4

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When solved for c, the equation is c = k – 273.15 c = 273.15 – k c = k 273.15 c = 273.15k
charle [14.2K]

The the equation K = C + 273.15 when solved for c is C = K - 273.15

<h3>Change of subject of formula</h3>

K = C + 273.15

  • subtract 273.15 from both sides

K - 273.15 = C

Therefore,

C = K - 273.15

Complete question:

The temperature measured in Kelvin (K) is the temperature measured in Celsius (C) increased by 273.15. This can be modeled by the equation K = C + 273.15.

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brainly.com/question/13763238

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8 0
2 years ago
the line passing through the points A (-1,3k) and B (k , 3) is parallel to the line whose equation is 2y+3x=9. write down the co
vodomira [7]

Answer:

k = 3

Step-by-step explanation:

If the line passing through the points A (-1,3k) and B (k , 3) is parallel to the line whose equation is 2y+3x=9, then their slopes are equal

For coordinate AB;

slope m1 = 3 - 3k/k-(-1)

m1 = 3-3k/k+1

For the line 2y+3x = 9

2y = -3x + 9

y = -3/2 x + 9/2

Slope m2 = -3/2

Since m1 = m2

3-3k/k+1 = -3/2

Cross multiply

2(3-3k) = -3(k+1)

Expand

6 - 6k = -3k - 3

-6k+3k = -3 - 6

-3k = -9

k = -9/-3

k = 3

Hence the value of k is 3

4 0
3 years ago
Evaluate the expression when x= -3.<br> x² – 7x+6
aksik [14]

Answer:

-6

Step-by-step explanation:

3^{2} = -3 × -3

-3 × -3 =  9

7 × -3 =-21

9 - 21 +6 = -6

7 0
3 years ago
Read 2 more answers
How would I solve n^2=2n
lidiya [134]

Answer: n=0 or n=2

Step-by-step explanation: Step 1: Subtract 2n from both sides.

n²−2n=2n−2n

n²−2n=0

Step 2: Factor left side of equation.

n(n−2)=0

Step 3: Set factors equal to 0.

n=0 or n−2=0

n=0 or n=2

5 0
3 years ago
Use the sine ratio to find the variable
jek_recluse [69]
Answer: 6.8829172362
Explanation:
sin35=e/12
Multiply 12 on each side
12sin35=e
4 0
3 years ago
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