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sveticcg [70]
3 years ago
14

A=2x+y²/7 make y the subject of the formula

Mathematics
2 answers:
ValentinkaMS [17]3 years ago
4 0

Answer:

y=√(7A-2x)

Step-by-step explanation:

A=2x+y²/7

Multiplying both sides by 7

7A=2x+y²

7A-2x=y²

Taking square root on both sides

y=√(7A-2x)

tino4ka555 [31]3 years ago
3 0

Start with

a=2x+\dfrac{y^2}{7}

Subtract 2x from both sides:

a-2x=\dfrac{y^2}{7}

Multiply both sides by 7:

7a-14x=y^2

Take the square root of both sides. Remember that this implies a double sign:

y=\pm\sqrt{7a-14x}

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tangare [24]

40 = x - 20

move -20 to the other side

sign changes from -20 to +20

40+20= x-20+20

40+20=x

60=x

Answer:

b 60

4 0
2 years ago
B. Solve for the product of the following fractions. Express your answer in simples form.
sladkih [1.3K]

Answer:

  1. 5/9
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  3. 1/7
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5 0
2 years ago
Rectangle with a width of 36 centimeters and a perimeter of 80 centimeters
olga2289 [7]

Answer: Height = 4 centimeters

Area = 144 cm^2

Step-by-step explanation:

So we know that on a rectangle opposite sides are equal in distance.

If one side of the rectangle is 36 centimeters then that means the opposite side is also 36 centimeters.

36 + 36 = 72 centimeters

The perimeter is the sum of all sides, so two out of the four of our sides total to 72 centimeters. So the remaining length of both sides is as follows:

80 - 72 = 8

The sum of the remaining sides is 8 so divide it between the two and that is the height.

8/2 = 4

I'm not sure what the question wants so here is pretty much everything:

Height: 4 cm

Area: 144 cm^2

7 0
3 years ago
At the start of 2014, tim house was worth £100,000 the value of the house increases by 10%per every year work out the value of h
kotykmax [81]

Answer:

$146410

Step-by-step explanation:

The formula for calculating future value:

FV = P (1 + r)^n

FV = Future value  

P = Present value  

R = interest rate  

N = number of years

100,000 x (1.1)^4 = $146410

4 0
2 years ago
Functions f(x) and g(x) are shown below:
hoa [83]

f(x) is a multiple of the cosine function. g(x) is a multiple of the sine function. Both the cosine function and the sine function have a maximum value of 1, so the magnitude of the multiple will determine which function has the largest maximum value.

The multiple for f is 2; the multiple for g is 3, which is greater than 2. Hence g(x) has a larger maximum value than f(x).

6 0
2 years ago
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