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3 years ago

Find the sale price. regular price = $48; discount rate = 25%

Mathematics

2 answers:

Anvisha [2.4K]3 years ago

8 0

Answer:

$36 is the price after applying thou discount

Step-by-step explanation:

inn [45]3 years ago

5 0

Answer:

Step-by-step explanation:

25 x 48

100

= 12

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A hot air balloon rising vertically is tracked by an observer located 5 miles from the lift-off point. At a certain moment, the

Zigmanuir [339]

Answer:

Step-by-step explanation:

aThe person and the hot air balloon form a right triangle, with the lift-off point as the vertex that form the right angle. If you were to try to solve for the height of the balloon, you would need to use tangent to do so:

tanθ = opp/adj = y/x

y = xtanθ

What this problem ultimately wants to know, is how the distance of the balloon is changing with respect to time: dy/dt. So we need to take the derivative of the above equation (you need to product rule to do so):

dy/dt = (dx/dt)tanθ + xsec2θ(dθ/dt)

We need to find out values for all of the variables:

The observer is not moving, therefore dx/dt = 0.

The observer is standing 4 miles away from the lift-off point, so x = 4.

The angle between the horizontal and the observer's line of sight is π/3, therefore θ = π/3.

The rate of change for the angle, dθ/dt, is 0.1.

Just plug all the numbers in:

dy/dt = (0)tan(π/3) + (4)sec2(π/3)(0.1)

dy/dt = 0 + 1.6

dy/dt = 1.6 mi/min

5 0

2 years ago

Please help. Is algebra. PLEASE HELP NO LINKS OR FILES. I don't want links.

elena55 [62]

Answer:

question 12 is answer B

question 13 is -8x^3

Step-by-step explanation:

exponent rule $\frac{a^m}{a^n} = a^(^m^-^n^)$

4 0

3 years ago

Bro please help for a brainlist for best answer !!!!!!

tatiyna

The domain of a function are the possible input values of the function.

The domain of the function is (d) Whole numbers

First, we identify the start and end values of x on the graph.

We have:

$Start = 0$

The graph has no end; so:

$End = \infty$

This means that the domain of the graph is $(0,\infty)$

The number of times one can visit the pool cannot be decimal.

Hence, the domain of the function is whole numbers

Read more about domain at:

brainly.com/question/15339465

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3 years ago

<img src="https://tex.z-dn.net/?f=Compare%20%5C%3A%20the%20%5C%3A%20graphs%20%5C%3A%20of%20%5C%5C%205x%20-%20y%20%3D%2012%20%5C%

fenix001 [56]

Answer:

Given

Equation 5x - y = 12

and

Inequality 5x - y > 12

See the graphs attached

To draw the graphs follow the rules we described in the previous questions.

1. Identify x-intercept and y-intercept and connect them to have the line.
2. Shade the region above or below the line for the inequality.

We see the only difference the expressions have is the equation or inequality symbols.

Equation symbol means the graph of the equation is a line.
Inequality symbol means the graph of this is a region above the same line, in our case the line is not a part of the covered region because it is "<".

We can state that the inequality excludes the line and includes only the region above the same line.

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3 years ago

The sum of a number and 7 is the same as double the number increased by 3

koban [17]

So, let’s represent the number as n:
n+7=2n+3
Subtract both sides by 3:
n+4=2n
Now by n:
2n=4
Divide:
n=2
The number is 2

4 0

3 years ago

Read 2 more answers