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Svet_ta [14]
3 years ago
13

Why Does Mathematics Use Letters?

Mathematics
2 answers:
nata0808 [166]3 years ago
7 0

Answer:

letters are used to represent numbers

Step-by-step explanation:

I am Lyosha [343]3 years ago
3 0

Answer:

Numerals are symbols for numbers that we know. We usually use letters as symbols for numbers that we don't know - which we call variables.

Step-by-step explanation:

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a coach requires the athletes on a team to run a time, t, of a 9 minute mile or faster. which graph represents this requirement
Vladimir [108]

C is the correct answer


4 0
3 years ago
The distance between points (X7, Yı) and (4, 8) is the square root of (x7 - 8)2 +
serious [3.7K]

Answer:

B. False

Step-by-step explanation:

Given

Points: (x_7 - y_i),(4,8)

Required

Is the distance between them \sqrt{(x_7 - 8)^2 + (y_1 - 4)^2}

Given that there are two points, the distance between them is calculated using

Distance = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

In this case;

(x_1,y_1)= (x_7 - y_i)\\(x_2,y_2) =(4,8)

Substitute these in the given formula

Distance = \sqrt{(4- x_7)^2 + (8 - y_1)^2}

Comparing this with the given formula, both are not the same;

Hence, the formula is false and the correct formula is of the form \sqrt{(4- x_7)^2 + (8 - y_1)^2}

6 0
3 years ago
The sum of x and 3 is divided by 2
Ganezh [65]
The mathematical expression in this case is
(x+3)/2
6 0
3 years ago
remy said the table shows a proportional relationship because each distanc went up by 6ftg. Collin said that it was not a propor
sdas [7]

Answer:

remy would be correct

Step-by-step explanation:

3 0
3 years ago
If 75 is added to a number, the result is 39 less than three times the number.find the number
antoniya [11.8K]

Answer:

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Step-by-step explanation:

First, we would set the number to x.

Then, we turn the words into an equation.

x+75 = 3x-39

Isolate the x.

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So...

x = 57

3 0
3 years ago
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