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scoray [572]
3 years ago
11

What is 4c minus 7.8 if c is 4

Mathematics
1 answer:
Debora [2.8K]3 years ago
5 0
Here is a substitution problem. By saying c is 4, we can replace anywhere we see c with the number 4.

c = 4

4c - 7.8
= 4(4) - 7.8
= 16 - 7.8
= 8.2

Hope this helps! :)
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Each brother should get 4 slices. 12 slices divided by 3 brothers equals 4 slices each.
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Evaluate show the solution of 14C6 and 15C4​
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Which table of values will generate this graph? On a coordinate plane, points are at (negative 2, 0), (0, 1), (0, negative 4), a
zhuklara [117]

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Option D.

Step-by-step explanation:

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5 0
3 years ago
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Simplify expression X^2+x-2/x^3-x^2+2x-2
professor190 [17]

Answer:


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Step-by-step explanation:

The given question is \frac{x^2+x-2}{x^3-x^2+2x-2}


To solve the problem we have to group or split middle term and then factorise


\frac{x^2+(2x-x)-2}{(x^3-x^2)+(2x-2)}


Taking x^2 common from first two terms of denominator and 2 from next two terms


= \frac{x^2+2x-x-2}{x^2(x-1)+2(x-1)}


Now,taking x common from first two terms of numerator and -1 from next two terms and in denominator taking(x-1) common from both terms


= \frac{ x(x+2)-1(x+2)}{(x-1)(x^2+2)}



=\frac{(x+2)(x-1)}{(x-1)(x^2+2)}


Now cancel out x-1 from both numerator and denominator we get


=\frac {x+2}{x^2+2} is the required simplest form.



7 0
3 years ago
HELPPP I DONT GET THISSS
Lina20 [59]
2x + 21 = 35
hope this helps
3 0
3 years ago
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