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worty [1.4K]
2 years ago
15

When solving an equation, Gabrielle’s first step is shown below. Which property justifies Gabrielle’s first step?

Mathematics
1 answer:
Luba_88 [7]2 years ago
6 0
I need help too !!!!!!!!
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A particle moves along the curve y = 5x^2 – 1 in such a way that the y value is decreasing at the rate of 2 units per second. At
Shtirlitz [24]

Answer:

The correct option is;

Increasing one fifth unit/sec

Step-by-step explanation:

The equation that gives the curve of the particle of the particle is y = 5·x² - 1

The rate of decrease of the y value dy/dt = 2 units per second

We have;

dy/dx = dy/dt × dt/dx

dy/dx = 10·x

dy/dt = 2 units/sec

dt/dx = (dy/dx)/(dy/dt)

dx/dt = dy/dt/(dy/dx) = 2 unit/sec/(10·x)

When x = 1

dx/dt = 2/(10·x) = 2 unit/sec/(10 × 1) = 1/5 unit/sec

dx/dt = 1/5 unit/sec

Therefore, x is increasing one fifth unit/sec.

8 0
3 years ago
A company will lease office space in two buildings. The annual cost of $21.75 per square foot in the first building and cost $17
lbvjy [14]
C...................
4 0
3 years ago
What is and equation line that passes through the point (8,-5) and is parallel to the line 5x+4y=24
GenaCL600 [577]

Answer:

5x + 4x = 20

Step-by-step explanation:

You have your x and y values and if you substitute them in you find yourself with 40 - 20 = 24 this doesn't make sense. So you get another answer which can be set to 20 and 40 - 20 = 20 therefore you you can make sure that your line intersects with your x and y values.

4 0
3 years ago
What is 3x eqauls -3x plus 2
sergiy2304 [10]

Answer:

x = \frac{1}{3} or 0.33333333

Step-by-step explanation:

3x = -3x + 2 (Given)

3x + 3x= -3x + 3x + 2 (Addition Property of Equality)

6x = 2 (Simplify)

\frac{6x}{6y} = \frac{2}{6}

x = \frac{1}{3} or 0.3333333

8 0
3 years ago
Find the value of x in the triangle.
Dmitrij [34]

Answer:

X = 65*

Step-by-step explanation:

Each triangle's angles equal 180*. So the equation you would type to find X is

180 - 65 - 50 = X

X = 65

6 0
2 years ago
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