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lara [203]
3 years ago
10

Evaluate this expression for a = 2 and b = 3. (a+5)-(b/b-4)+2(b+3/a)

Mathematics
1 answer:
klasskru [66]3 years ago
4 0
((2)+5)−(b/b−4)+2∗(b+3/(2)) = <span>7</span>
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HELP ASAP: Factor By Grouping: 12a^3 - 9a^2 + 4a - 3
MAVERICK [17]

We have been given an expression 12a^3 - 9a^2 + 4a - 3. We are asked to factor the given expression by grouping.

First of all, we will make two groups of our expression as:

(12a^3-9a^2)+( 4a - 3)

Now we will factor of greatest common factor from each group.

(3a^2\cdot 4a-3a^2\cdot 3)+( 4a - 3)

3a^2(4a-3)+1( 4a-3)

Now we will factor out common terms (4a-3) as:

(4a-3)( 3a^2+1)

Therefore, the factorized form of our given expression would be (4a-3)( 3a^2+1).

7 0
3 years ago
The table shows the values of different measurements in the metric system.
Lunna [17]

A micrometer has a power of 10^{-6}

A millimeter has a power of x 10^{-3}

A nanometer  has a power of 10^{-12}

A picometer  has a power of 10^{-12}

We are to write the numbers in standard form.

Standard form is a way of writing simplifying numbers and expressing numbers to a power of 10.

For example, to express 1000  in standard form, count the number of digits after the first number. There are 3 zeros. 3 would be the power of the number. So, 1000 in standard form is 1 x 10³

To express a decimal in standard form, count the numbers of zeros and the first non-zero digit  The negative of the number would be the power.

For example, 0.001 is standard form is 1 x 10^{-3}

A micrometer has 6 digits after the decimal point , it power would be x 10^{-6}

A millimeter has 3 digits after the decimal point, its power would be x 10^{-3}

A nanometer has 9 digits after the decimal point, its power would be x 10^{-12}

A picometer has 12 digits after the decimal point, its power would be x 10^{-12}

To learn more about standard form, please check: brainly.com/question/23123973?referrer=searchResults

4 0
3 years ago
How many solutions does this linear system have? y =2/3 x+ 2 6x – 4y = –10
ZanzabumX [31]
2.  They are both straight lines.  The solution of a linear system is where the two lines intersect, and if they're both straight lines, then they can only cross once.  

See the picture attached.

8 0
3 years ago
What is 6x7 i give brainlest
Rus_ich [418]

Answer:

42

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Vertex A in quadrilateral ABCD lies at (-3, 2). If you rotate ABCD 180° clockwise about the origin, what will be the coordinates
natali 33 [55]

The rule for a rotation by 180° about the origin is (x,y) -->(−x,−y)

So A(-3, 2) to A'(3, -2)

Answer:

A'(3, -2)

4 0
3 years ago
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