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evablogger [386]
3 years ago
7

The potential energy, P, in a spring is represented using the formula P = P equals StartFraction one-half EndFraction k x square

d.kx2. Lupe uses an equivalent equation, which is solved for k, to determine the answers to her homework.
Mathematics
1 answer:
Anastaziya [24]3 years ago
6 0

Answer:

k=\frac{2P}{x^{2}}

Step-by-step explanation:

<u><em>The question is</em></u>

Which equation should she use?

we have the formula

P=\frac{1}{2}kx^{2}

Solve for k

That means ----> isolate the variable k

Multiply by 2 both sides

2P=kx^{2}

Divide by x^2 both sides

\frac{2P}{x^{2}}=k

Rewrite

k=\frac{2P}{x^{2}}

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klio [65]

Answer:

slope=2

I think that you can use demos it is a calculator just put the point and you get the answer

7 0
2 years ago
A line that includes the point (-3,-4) and (-4,f ) has a slope of 6. What is the value of f?
Eduardwww [97]

Answer:

f = -10

( -3, -4) ( - 4 , -10)

Step-by-step explanation:

Formula for slope

m =( y_2 - y_1)/(x _2 - x _1)

m = 6

6 = (y_2 - y_1) / (x _2 - x_1)

Substitute the points

( -3 , -4) ( -4 , f)

x_1 = -3

y_1 = -4

x_2 = -4

y_2 = f

Insert the values into

6 = (y_2 - y_1) / (x_2 - x_1)

6 = (f - (-4))/ ( -4 - (-3)

6 = ( f + 4)/ ( -4 + 3)

Cross multiply

6 ( -4 + 3) = f + 4

6 ( -1) = f + 4

-6 = f + 4

-6 - 4 = f

f = -6 - 4

f = -10

( -3 , -4) ( -3 , f)

The value of f is -10

( -3 , -4) ( -3 , -10)

8 0
3 years ago
What is the solution to the system of equation<br> -7x-2y=-13<br> X-2y=11<br> Using substitution
Gnom [1K]
        -7x - 2y = -13
-7x + 7x - 2y = 7x - 13
               -2y = 7x - 13
                -2         -2
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                      x - 2y = 11
    x - 2(-3.5x + 6.5) = 11
x - 2(-3.5x) - 2(6.5) = 11
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                           8      8
                            x = 3

y = -3.5x + 6.5
y = -3.5(3) + 6.5
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8 0
3 years ago
What is negative 48 plus 14
leva [86]

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Step-by-step explanation:

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How much should you put in an investment paying a simple interest rate of​ 5% if you needed​ $4000 in eighteen​ mont
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now, there are 12 months in a year, so 18 months is really 18/12 of a year, thus

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6 0
2 years ago
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