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2 years ago

8

A cashier checks the price of a kitchen table that is marked $51, because it usually rings up at $86. What percentage is the dis

count? Round your answer to the nearest percent and include a percent sign (%).

1 answer:

Tpy6a [65]2 years ago

4 0

90000000000 y r u cheating

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Find all the points that are on the x-axis that are a distance of 13 units from the point (12,-5).

Viefleur [7K]

Let point A(x,y) be the point on the x-axis. All points that lie on the x-axis have y-coordinate equal to 0, then A(x,y).

Find the distance from point A to point (12,-5):

$d=\sqrt{(x-12)^2+(0-(-5))^2}=\sqrt{(x-12)^2+25}.$

This distance is equal to 13, then

$\sqrt{(x-12)^2+25}=13,\\ \\(x-12)^2=169-25,\\ \\(x-12)^2=144,\\ \\x-12=12 \text{ or } x-12=-12,\\ \\ x=24 \text{ or }x=0.$

You get two ponts (0,0) and (24,0).

6 0

2 years ago

Para la ecuación 2x+5y-3=0, halla la coordenada que falta (-3,?)

butalik [34]

Answer:

$(-3, \frac{9}{5})$

Step-by-step explanation:

We have the equation $2x + 5y-3 = 0$ .

The ordered pairs of this equation have the form $(x_0, y_0)$

Where x is the independent variable and y is the dependent variabe.

That is, the points belonging to the line $2x + 5y-3 = 0$ have the form $(x_0, f (x_0))$

For $y = f(x)$ .

So, we need to find $f(x_0)$ for x_0 = -3.

Then we substitute x = -3 into the equation and clear the value of y.

$2(-3) + 5y -3 = 0$

$-6 + 5y = 3\\\\5y = 9\\\\y = \frac{9}{5}$ .

Then the ordered pair is:

$(-3, \frac{9}{5})$

6 0

3 years ago

I NEED HELP WITH THIS ASAP!! Please!

ipn [44]

Answer:

f(x)=3x+2,g(x)=2x^(2)-1

Step-by-step explanation:

First set up the composite result :

f (g (x))

Evaluate f (g (x))

3( 2x sqaured -1 ) + 2

Simplify:

f ( 2X SQUARED -1 ) 6 x squared -3 + 2

Add 2 and -3

8 0

3 years ago

The sum of the first k terms in the sequence is 118096, find the value of k. The first term is 78732 the common ratio is 1/3.

FrozenT [24]

Answer:

k = 10

Step-by-step explanation:

The sum of k terms of a geometric sequence with first term a1 and common ratio r is given by ...

... Sk = a1·(1 -r^k)/(1 -r)

For the given numbers, this is ...

... 118096 = 78732·(1 -(1/3)^k)/(1 -1/3)

Manipulating this to get the term containing k, we have

... 1 -(2/3)(118096/78732) = (1/3)^k

... 1/59049 = (1/3)^k

Taking logarithms, we get

... -log(59049) = -k·log(3)

... log(59049)/log(3) = k = 10

8 0

2 years ago

How do i turn decimals into coordinates

kati45 [8]

On a calculator put in the latitude and longitude lines and press convert

8 0

3 years ago