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romanna [79]
2 years ago
7

3x-7y=9, x=-2,0,2 When x=2, the value of y is

Mathematics
1 answer:
vodomira [7]2 years ago
5 0

Answer:

3*2-7y=9

or,6-7y=9

or,-7y=9-6

or,-7y=3

or y=3/-7

therefore the value of y=3/-7

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Please help!!!!!!!!!!​
natta225 [31]

if 15 x 1.8 = 27 then

45 x 1.8 = 81

so answer: B) 81

8 0
2 years ago
Can anyone tell me the correct answer of this. I already have it but I wanna make sure. please ​
Mamont248 [21]

Answer:

x = 44.3°

Step-by-step explanation:

Redrawing the triangle,

To obtain x, we can apply the trigonometric relation :

Sin x = opposite / hypotenus

Opposite side = 6.5

Hypotenus = 9.3

Sin x = 6.5/9.3

x = sin^-1(6.5 / 9.3)

x = 44.34

x = 44.3°

4 0
3 years ago
Here are two equations.<br> k= a+b<br> a+b+k=30<br> What is the value of k?
Rina8888 [55]
(1) k = a + b
(2) a + b + k = 30

subtitute a + b = k to (2)

k + k = 30

2k = 30    |divide both sides by 2

k = 15
5 0
3 years ago
Solve the system of equations.<br> 6x – 5y = 15<br> x = y + 3
kati45 [8]
The first equations answer is x=5/2+5/6y, yeR (yeR) means that y is a real number.
6 0
3 years ago
Ax + 3b = 2f <br> Solve for x.
satela [25.4K]
<span>The answer is x=(2/a)f - (3/a)b. 

Explanation:
We want to isolate x, which means we must cancel everything else on that side of the equals sign. We start with the term farthest from x, which is 3b. Since it was added, we cancel it by subtracting. This gives us ax=2f-3b.
 
Next we have an a to cancel. Since it is beside x, it has been multiplied; this means we cancel it by dividing. Dividing both sides by a, we have x=(2f-3b)/a. We can rewrite this as each term of the answer being divided by a, or x=(2/a)f - (3/a)b.</span>
6 0
3 years ago
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