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Blababa [14]
3 years ago
14

Identify the terms and like terms in the expression. x² - 3x + 4 + 2x² - x - 12. Thank you to anyone who helps, I appreciate it

:)
Mathematics
1 answer:
marta [7]3 years ago
4 0

Given:

The expression is:

x^2-3x+4+2x^2-x-12

To find:

The terms and like terms in the expression.

Solution:

Terms: Variables, constants and product of variable and constants are known as terms which are separated by addition sign "+".

Like terms: The terms which contain same variables with same power are known as like terms.

The given expression is:

x^2-3x+4+2x^2-x-12

It can be rewritten as:

x^2+(-3x)+4+2x^2+(-x)+(-12)

Terms are x^2,-3x,4,2x^2,-x,-12.

Like terms are x^2,2x^2 and -3x,-x and 4,-12.

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It says that mean of six nos is 4.7

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the same goes for the average of the other four numbers=6.5

If we're talking about the mean ( average) of all the ten numbers , we usually would need the ten numbers ( their values and their frequency) , but since its already given as mean itself , we could just add up the values.

4.7+6.5=11.2

6 0
3 years ago
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Find two mixed numbers so that the sum is 15 3/10 and the difference is 8 5/10
Juliette [100K]
11 9/10 and 3 2/5

\left \{ {{ 11\frac{9}{10}+3\frac{2}{5}=15\frac{3}{10}} \atop { 11\frac{9}{10}-3\frac{2}{5}=8\frac{5}{10}}} \right.

To solve for this, you can create a series of two equations
\left \{ {{y+x=15 \frac{3}{10} } \atop {y-x= 8\frac{5}{10} }} \right.

After that, you solve one of the equations for x and plug it into the other equation.
\left \{ {{x=15 \frac{3}{10}-y } \atop {y-x= 8\frac{5}{10} }} \right.

{2y-15 \frac{3}{10}= 8\frac{5}{10}

Then, solve for variable y
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Then, you plug in this value for y into one of the original equations

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x=15 \frac{3}{10} -11\frac{9}{10}

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8 0
3 years ago
F(x) = 2x2 + 3x + 5,
SIZIF [17.4K]

Answer:

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Step-by-step explanation:

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3 years ago
Ravi has 33 marbles his brother has twice as many how many marbles do they have all together​
ycow [4]

Answer

Together, they have 99 marbles.

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6 0
3 years ago
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