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GaryK [48]
3 years ago
8

which of the following Expressions could be interpreted as "a number times negative seven added to five equals two"?​

Mathematics
2 answers:
Brrunno [24]3 years ago
5 0

Answer:

It depends on how you interpret the statement.

( x * -7 ) + ( 5 - 2 )

x * ( -7 + 5 ) - 2

Step-by-step explanation:

"a number times negative seven added to five equals two"

Let's set x as our number.

So the statement would translate to:

x * -7 + 5 - 2

To simplify, we might try to organize things by adding some parentheses. But that's when things start to get a little.....dicey.

Depending on how you interpret the original statement, both (x*-7)+5-2 and x*(-7+5)-2 can satisfy the statement.

Herein lies our problem. Which of the two expressions is correct?

Well.....both of them, actually. It just depends on how you're interpreting the statement and what options you have available.

If you can only pick one, but all of the expressions are possible options, then you're kind of stuck.

ryzh [129]3 years ago
3 0
X(-7)+5=2 it can be this
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Answer:

It should be the top left graph  where there is point (1,1) and (-1, -1)  y = 1/x

Step-by-step explanation:

from the original graph, I see:

f(x) =  2/x    because  f(2) = 1 = 2/2

f(1/4)= 2/(1/4) = 2

...

so then  f(2x)  compresses f(x) horizontally by a factor of 2

so f(2x) =  2/(2x) = 1/x

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8 0
3 years ago
A circle is inscribed in a square. Write and simplify an expression for the ratio of the area of the square to the area of the c
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A(circle) = πr^2 
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8 0
3 years ago
A positive real number is 6 less than another. If the sum of the square of the two numbers is 38, then finds the numbers.
Serggg [28]

Answer:

There seems to be a typo error but still this has solution.

Let the number be = x

A positive real number is 6 less than another. Means the second will be (x+6)

The sum of the square of the two numbers is 38.

x^{2} +(x+6)^{2} =38  

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=> 2x^{2}+12x+36 =38

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Taking out 2 common;

=> x^{2}+6x-1=0

Solving this quadratic equation, we get;

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