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Andrej [43]
3 years ago
13

Emma, Steve, Maria, and George are comparing the solution of a math assignment problem below.

Mathematics
2 answers:
Ann [662]3 years ago
7 0
Steve did it perfectly, because he got the common denominator first, then expanded and subtracted.
LekaFEV [45]3 years ago
5 0

Answer:

A. Steve

Step-by-step explanation:

We are given the expression, \frac{1}{x-1}-\frac{3}{x^{2}+2x-3}.

So, upon simplifying the expression, we get,

\frac{1}{x-1}-\frac{3}{x^{2}+2x-3}

implies \frac{1}{x-1}-\frac{3}{(x-1)(x+3)}

i.e. \frac{1(x+3)-3}{(x-1)(x+3)}

i.e. \frac{x+3-3}{(x-1)(x+3)}

i.e. \frac{x}{(x-1)(x+3)}

So, from the options, we see that,

Steve has correctly subtracted the rational expressions.

Thus, option A is correct.

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Is (6,5) for y = 5x - 25 a solution
Y_Kistochka [10]

Answer:

Yes.

Step-by-step explanation:

When you plug in 6 for x and solve for y, you get 5.

y=5(6)-25

y=30-25

y=5

When X is 6, Y is 5.

8 0
3 years ago
Write a numerical expression for the verbal expression.
BARSIC [14]

7+3×11

if it helps then plz plz mark brainliest

5 0
3 years ago
2.Which of the following is NOT true? *
Svetlanka [38]

Answer:

The line of symmetry divides the quadratic graph into 4 parts

Step-by-step explanation:

The line of symmetry divides the quadratic graph into 2 parts, not 4 parts.

Since a quadratic parabola is symmetrical on two sides, the line of symmetry divides it into these 2 parts.

So, this statement is not true.

7 0
3 years ago
Noah raised $54 to support the animal shelter , which is 60% of his fundraising goal.
aniked [119]

Answer:

The linear equation that represent this problem is  0.60x=54

The fundraising goal is $90

Step-by-step explanation:

Let

x ----> the fundraising goal

Remember

60\%=60/100=0.60 ----> percentage in decimal form

we know that

The fundraising goal multiplied by the percentage in decimal form must be equal to the amount raised

so

The linear equation that represent this problem is

0.60x=54

solve for x

Divide by 0.60 both sides

x=54\0.60\\x=\$90

3 0
3 years ago
1/3 times the difference of a number and five is -2/3 which equation best shows this
LekaFEV [45]

Answer:

\frac{1}{3}*(x-5)=\frac{-2}{3}

Step-by-step explanation:

Let the number be x

Difference of a number & 5 : x-5

1/3 time the difference of a number & 5: 1/3 (x-5)

Equation:

\frac{1}{3}*(x-5)=\frac{-2}{3}

Solution:

x-5=\frac{-2}{3}*\frac{3}{1}\\\\x-5=-2\\\\x=-2+5\\x=3

4 0
3 years ago
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