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stealth61 [152]
2 years ago
12

-2x+4y=28 -3x +2y = 6 Solve for x

Mathematics
1 answer:
NNADVOKAT [17]2 years ago
3 0

Answer:

x=4, y=9

Step-by-step explanation:

Solve with substitution.

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Otrada [13]
The equation is:
y = 10 sin(π/15 t) + 30 
where 30 represents the initial height of the blade above the ground and π/15 represents the period as we are given that the blade completes two rotation every minute.Finally the 10 represents the length of the blades.

Hope this helps :)
7 0
3 years ago
NEED QUICKLY <br> Write the equation of the line shown below?
grandymaker [24]

y = x + 2

Step-by-step explanation:

General formula for any straight line:

y = mx + c

Where

m = gradient

c = constant

m = y2 - y1/x2 - x1

m = (4 - ( -2))/(2 - ( -4))

m = 6/6

m = 1

y = (1)x + c

y = x + c

Substitute any coordinate from the line of the equation.

4 = 2 + c

c = 2

substitute m and c into general formula

y = mx + c

y = x + 2

8 0
3 years ago
Read 2 more answers
Christian's bill at a restaurant is $840.If Christian's wants to leave a 17% tip, how much tip should he leave?
Ilya [14]
Hey there!


840 = 100%

x = 17%

840/x = 100%/17%

(840/x) * x = (100/17) * x 840 = <span>5.8823529411765
</span>
<span>= 840/5.8823529411765 = 142.80

The correct answer to your question is option C.

The tip Christian should leave is $142.80.

Hope this helps you.
Have a great day!
</span>
5 0
3 years ago
Gabe​ Amodeo, a nuclear​ physicist, needs 60liters of a 40%acid solution. He currently has a 30 % solution and a 60% solution. H
Alecsey [184]
39.5 I think that's the answer I hope its right if wrong than I'm truly srry
5 0
3 years ago
If f(x) = 3^x + 10 and g(x) = 2x − 4, find (ƒ+g)(x)
galina1969 [7]

Answer:

3^x+12x-4

Step-by-step explanation:

(f+g)(x) = f(x) + g(x) = 3^x + 10x + 2x - 4 = 3^x + 12x - 4

6 0
2 years ago
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