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balandron [24]
3 years ago
5

Mr. Gupta gave his students a quiz with three questions on it. Let X represent the number of questions

Mathematics
1 answer:
irakobra [83]3 years ago
7 0

Answer:

24.5 points

8 points

Step-by-step explanation:

khan academy

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Simplify the following expression and write in standard form: 3 x (6y - 4y + 5x) PLEASE HELP
mylen [45]

Answer: 15x^2+6xy

Step-by-step explanation: 3x(6y−4y+5x)

(3x)(6y+−4y+5x)

(3x)(6y)+(3x)(−4y)+(3x)(5x)

18xy−12xy+15x^2

15x^2+6xy

8 0
3 years ago
40 POINTS!!!!!!!! NEED HELP
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6 0
3 years ago
While grading her students' most recent quiz on equation solving, Mrs. Jones calculated that approximately forty percent of her
EastWind [94]

The given equation is,

3(-n+4)+5n=2n

Part 1:

Solve the above equation for n.

Using distributive property of multiplication,

\begin{gathered} -3n+3\times4+5n=2n \\ -3n+12+5n=2n \end{gathered}

Now, group the like terms.

-3n+5n-2n+12=0

Now, add the like terms.

\begin{gathered} -5n+5n+12=0 \\ 0=-12 \end{gathered}

0=-12 is a false statement.

Since we obtained a false statement, the given equation has no solution.

So, option b is correct.

Part 2:

The option (a) is n=3.

If while solving an equation, a single value is obtained for the variable, then the equation has only a single solution. If n=3 is obtained after solving the equation, then the student should chose option (a) as the answer.

The option (b) is "no solution".

While solving an equation, if we obtain an equation which is mathematically false, then the equation will have no solution. So, no solution is chosen when no value is obtained for n and the final equation is mathematically false.

The option (c) is "infinitely many solutions".

While solving an equation, if we obtain an equation which is mathematically correct such as 0=0, 7=7 etc., then the equation will have infinietly many solutions. So, infinitely many solutions is chosen when no value is obtained for n and the final equation is mathematically correct.

8 0
1 year ago
What is the solution of the inequality shown<br> below?<br> y-1 &gt; 0
kipiarov [429]

Answer:

y>1

Step-by-step explanation:

y-1 > 0

Add 1 to each side

y-1 +1> 0+1

y>1

7 0
3 years ago
What is the transformation of the logarithmic function from the parent log5 x?
TiliK225 [7]

Answer: Choice #3 - compressed horizontally and translated by 4 units to the right.

g(x)=\log_5(4x-16)=\log_5 4(x-4)

This corresponds to horizontal shift to the right by 4 units and a horizontal compression.

4 0
4 years ago
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