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Arisa [49]
3 years ago
5

What does x mean in maths

Mathematics
2 answers:
dimaraw [331]3 years ago
7 0
It is a variable in math you solve for it can be any letter but O 
Nana76 [90]3 years ago
3 0
X is usually the representation for the unknown number.


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Is the relation a function? {(-1,7), (9,4), (3,-2), (5,3), (9,1)}
guapka [62]

Answer:

Yes. it is a function

Step-by-step explanation:

None of the x's axis are the same

7 0
2 years ago
As more and more people get their news online, the subscriptions to the Dorchester Daily has declined over the past years.
atroni [7]

Answer:

Step-by-step explanation:

The function s(x)=0.9(.82)^x models the number of subscription in tens of thousands where x represents the number of years since the trend has been observed.

s(x) represents the number of subscriptions to the Dorchester Daily in a given year.

0.9 in ten thousands represents the initial number of subscriptions to the Dorchester Daily in a given year.

0.82 represents the rate at which the number of number of subscriptions to the Dorchester Daily is declining. The rate in percentage is 100 - 82 = 12% each year.

x represents the number of years since the trend has been observed.

3 0
3 years ago
In the given equation, k is a constant. If the equation has no solution, what is the value of k?
MrRissso [65]

Answer:

0

Step-by-step explanation:

7 0
3 years ago
the length of a rectangular sing is 5 time its width. if the sign perimeter is 24 inches. what is the sign area ?
kumpel [21]

Answer:

20 in²

Step-by-step explanation:

Assuming that the width of the sign is x, then from the question, we're told that the length is 5 times it's width, so

b = x inches

l = 5x inches

Again, we're told that the perimeter of the sign is 24 inches, and we know already that the perimeter of a rectangle is given as

Perimeter = 2(l + b), substituting this, we have

24 = 2(5x + x)

24 = 10x + 2x

24 = 12x

x = 24 / 12

x = 2 inches.

Since x is the width of the rectangle, and it's 2 inches, we use it to find the length of the sign.

l = 5 * 2

l = 10 inches.

Then, we are asked to find the area of the sign. Area of a rectangle is given as

A = l * b, so if we substitute, we have

Area = 10 * 2

Area = 20 square inches

8 0
3 years ago
Y is equal to the sum of two and the product of three and x
Gennadij [26K]
Y=2+3x ejejjenejensnens
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3 years ago
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