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2 years ago

Write the equation of the line perpendicular to the line x - 3y = 9 and passing through the point (3,5).

1 answer:

5 0

Here is a sample problem
has to be perpendicular to y=(4/9)*x-2 and pass through 4,3,

y-b=m(x-a)
slope of -9/4 is perpendicular to slope of 4/9, as y=4/9x-2 has slope 4/9. Our point is (4,3) therefore.
y-3=-9/4*(x-4)
y-3=-9/4x+9
y=-9/4x+9+3
y=-9/4x+12

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A new television is on sale for $680.00, which is 20% off of its original price. What was the original price of the television?

Effectus [21]

Answer:

Original price of the television = $850

Step-by-step explanation:

Television price on sale = $680.00

% of sale = 20%

It means price on sale = 80% = $680.00

Original price of the television = 100% = ?

Price on 1% = 680/80 = $8.5

Original price of the television = 100% = $8.5 x 100

= $850

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3 years ago

10 x 10 +100 – 1000 = X

boyakko [2]

Answer:-800

Step-by-step explanation: 10 times 10 is 100 plus another 100 is 200-1000 is -800 which is x

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2 years ago

Read 2 more answers

2. Which of the following is an equation? <br> A. y/9 - 3<br> B. 9 - 2<br> C. y/9 = 3<br> D. 7 + y

andrew11 [14]

An equation is something with a = sign btw and it’s C because it’s the only one with the = sign

7 0

2 years ago

Ryan has some nickels and dimes. altogether, he has 34 coins that total $2.60. write and solve a system of equations to determin

777dan777 [17]

N+d=34
.05n+.10d=2.60

Solve by substitution
n=34-d
.05(34-d)+.10d=2.60
1.7-.05d+.10d=2.60
.05d=.90
d=18 dimes
18+n=34
n=16 nickles

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2 years ago

The ordered pair (3,-4) is among the points on the graph of the function f. Which of the following doesn’t belong to the functio

julia-pushkina [17]

Answer:

(3, 4)

Step-by-step explanation:

A function is a relation that maps elements from a set (the domain, the set of the inputs) into elements from another set (the range, the set of the outputs).

Such that a function can map each element of the domain into only one element of the range.

Then, if a "function" has:

f(x1) = y1

and

f(x1) = y2

It is mapping the input "x1" into two different outputs, then this is not a function.

Now, we know that the ordered pair (3, -4) is among the points on the graph of the function f(x)

(The first value is the input and the second one is the output)

Then the point that does not belong to the graph, is the point that has the same input and different output.

(3, 4)

Any of the other points could belong to the graph.

3 0

2 years ago