3 years ago

How do I solve problems like this?

Mathematics

1 answer:

iris [78.8K]3 years ago

4 0

I think u have to add the fractions or multiply them

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The teacher wanted to know what the average test grade was, so she added up all the grades and divided by the number of tests to

svp [43]

Answer:

Mean

Step-by-step explanation:

Adding up and dividing to find the mean.

We simply add up all of the individual grades, get the total, and then divide by the number of students in the class.

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A taste test asks people from Texas and California which pasta they prefer, brand A or brand B. this table shows the results

enyata [817]

Answer:

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Step-by-step explanation:

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Algebraically determine if the relation y = x3 − 4x is symmetric with respect to the x-axis, y-axis, the origin or has no symmet

Gala2k [10]

$\bf y=x^3-4x
\\\\\\
\textit{check for y-axis symmetry}\\\\
\stackrel{x=-x}{y=(-x)^3-4(-x)}\implies y=(-x)(-x)(-x)+4x\implies \boxed{y=-x^3+4x}
\\\\\\
\textit{checking for x-axis symmetry}\\\\
\stackrel{y=-y}{(-y)=x^3-4x}\implies -y=x^3-4x\implies \boxed{y=-x^3+4x}
\\\\\\
\textit{checking for origin symmetry}\\\\
\stackrel{x=-x\qquad y=-y}{(-y)=(-x)^3-4(-x)}\implies -y=(-x)(-x)(-x)+4x
\\\\\\
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notice, if you replace x = -x and y = -y accordingly for each test for symmetry, if the resulting function, is equal to the original function, then it has that type of symmetry.

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Angie completes 80% of her homework problems before practice. She was assigned 30 problems. How many problems were completed bef

Sunny_sXe [5.5K]

The correct answer is 50

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Need help with this please

Nastasia [14]

Answer:

158 correct