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2 years ago

I know it’s one, but how do you solve to get to one?

Mathematics

1 answer:

Kisachek [45]2 years ago

3 0

Answer:

Step-by-step explanation:

1/15 + 7/30y + 1/2y = 4/5

2 + 7y + 15y = 24

2 + 22y = 24

22y = 24 - 2

22y = 22

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Use the Pythagorean Theorem to find the length of the leg in the triangle shown below. The figure shows a right triangle with on

Natali5045456 [20]

Answer:

Step-by-step explanation:

you would just to 39^2-15^2 which is 1296 and the square root of that is 36 so 36 would be the answer

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3 years ago

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Hailey spent $12 to buy $2 fish her cousin spent double the amount on fish each fish cost the same amount how many fish do haile

Alchen [17]

I believe 18 is the correct answer.

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3 years ago

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In the previous part, we obtained dy dx = 3t2 − 27 −2t . Next, find the points where the tangent to the curve is horizontal. (En

mina [271]

Answer:

(27.55, 7.22), (-11.3, 3.21).

Step-by-step explanation:

When is the tangent to the curve horizontal?

The tangent curve is horizontal when the derivative is zero.

The derivative is:

$\frac{dy}{dx} = 3t^{2} - 2t - 27$

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this question:

$3t^{2} - 2t - 27 = 0$

$a = 3, b = -2, c = -27$

Then

$\bigtriangleup = b^{2} - 4ac = (-2)^{2} - 4*3*(-27) = 328$

$t_{1} = \frac{-(-2) + \sqrt{328}}{2*3} = 3.35$

$t_{2} = \frac{-(-2) - \sqrt{328}}{2*3} = -2.685$

Enter your answers as a comma-separated list of ordered pairs.

We found values of t, now we have to replace in the equations for x and y.

t = 3.35

$x = t^{3} - 3t = (3.35)^{3} - 3*3.35 = 27.55$

$y = t^{2} - 4 = (3.35)^2 - 4 = 7.22$

The first point is (27.55, 7.22)

t = -2.685

$x = t^{3} - 3t = (-2.685)^3 - 3*(-2.685) = -11.3$

$y = t^{2} - 4 = (-2.685)^2 - 4 = 3.21$

The second point is (-11.3, 3.21).

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2 years ago

If 1/2 = 32/d what is d first answer gets brainerlist

Scilla [17]

Answer:

D would be equal to 64

You just need to multiply 32 by 2

4 0

3 years ago

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A) AAS<br> C) ASA<br> B) SSS<br> D) SAS

scoray [572]

What’s the question??

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3 years ago

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