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3 years ago

Write an algebraic expression for the word expression.

Mathematics

1 answer:

kolbaska11 [484]3 years ago

3 0

Answer:

3 + x

Step-by-step explanation:

Sum means to add, so you would just add 3 and x (since they haven't given an actual number and only a variable).

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Korolek [52]

Answer:

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Step-by-step explanation:

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3 years ago

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Ulleksa [173]

Answer:

Plug in the 12 into the x's and find the ordered pair

Step-by-step explanation:

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3 years ago

Each of the skiers above have the same weight of 100 pounds. Which skier (yellow or blue) has the greatest gravitational potenti

KIM [24]

Answer:

The highest.

Step-by-step explanation:

I'm assuming there is supposed to be a picture but the skier highest on the mountain will have the greatest gravitational potential energy.

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3 years ago

A(2, -1), B(-4, -4) HELP THIS IS ALGEBRA PLEASE HELP

shtirl [24]

Step-by-step explanation:

y2-y1

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x2-x1

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3 0

3 years ago

assume x and y are both differentiable functions of t. find dx/dt given x=-1 and dy/dt=8 for the relation: 4x^2+3y^3=28

melomori [17]

Given:

x and y are both differentiable functions of t.

$4x^2+3y^3=28$

$x=-1\text{ and }\dfrac{dy}{dt}=8$

To find:

The value of $\dfrac{dx}{dt}$ .

Solution:

We have,

$4x^2+3y^3=28$ ...(i)

At x=-1,

$4(-1)^2+3y^3=28$

$4+3y^3=28$

$3y^3=28-4$

$3y^3=24$

Divide both sides by 3.

$y^3=8$

Taking cube root on both sides.

$y=2$

So, y=2 at x=-1.

Differentiate (i) with respect to t.

$4(2x\dfrac{dx}{dt})+3(3y^2\dfrac{dy}{dt})=0$

Putting x=-1, y=2 and $\dfrac{dy}{dt}=8$ , we get

$4(2(-1)\dfrac{dx}{dt})+3(3(2)^28)=0$

$-8\dfrac{dx}{dt}+9(4)(8)=0$

$-8(\dfrac{dx}{dt}-9(4))=0$

Divide both sides by -8.

$\dfrac{dx}{dt}-36=0$

$\dfrac{dx}{dt}=36$

Therefore, the value of $4x^2+3y^3=28$ is 36.

6 0

3 years ago