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MissTica
3 years ago
9

What is the answer to this 3a^2-9a

Mathematics
2 answers:
olchik [2.2K]3 years ago
4 0
If i'm correct, the answer should be

-3a

hope this helped! 8)

Nikolay [14]3 years ago
3 0

ANSWER:

{3a}^{2}  - 9a \\  =  {( \sqrt{3} a)}^{2}  -  {(3 \sqrt{a}) }^{2}  \\  = using \: formula \:  {a}^{2}  -  {b} = (a + b)(a - b) \\  = ( \sqrt{3} a + 3 \sqrt{a} )( \sqrt{3} a - 3 \sqrt{a} )

HOPE IT HELPED YOU ☺

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Police use photographs of various facial features help witnesses identify suspects. One basic identification kit contains 195 ha
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Answer: 99 different faces

Step-by-step explanation:

Since a witness can clearly remember the hairline and the eyes and eyebrows of a suspect, and the

basic identification kit contains 195 hairlines, 99 eyes and eyebrows, the number of different faces that can be produced with this information will be 99

5 0
3 years ago
Louis brings 79 pencils to school. After he gives each of his 15 classmates an equal number of pencils, he will give any leftove
slavikrds [6]

Answer:

a. 4\ pencils

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Step-by-step explanation:

a. The total number of pencils Louis brings to school is:

total\ pencils=79

Then, in order to calculate the number of pencils Louis’s teacher will receive after he gives each of his 15 classmates an equal number of pencils, you need to solve the division show in the picture attached.

Notice that the remainder obtained is: 4.

<em>This means that Louis’s teacher will receive 4 pencils.</em>

b. If Louis decides instead to take an equal share of the pencils along with his classmates, his teacher will receive more pencils; because the amount of pencils each classmate will receive will be less. This means that the number of pencils leftover will increase, leaving more pencils for his teacher.

4 0
3 years ago
Read 2 more answers
Solve the inequality 3x - 5
SSSSS [86.1K]
The anwser would be -15  
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4 0
3 years ago
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6 0
3 years ago
The graph of the step function g(x) = –⌊x⌋ + 3 is shown. On a coordinate plane, a step graph has horizontal segments that are ea
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Answer:

{x| –2 ≤ x < 5}

Step-by-step explanation:

There is a box function plotted on the graph.

The function is  g(x) = –⌊x⌋ + 3.

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It is given that the left-most segment of the given graph goes from (-2,5) to (-1,5) and the rightmost segment goes from (4,-1) to (5,-1).

So, for the left most segment the domain is -2 ≤ x < -1

And for the right most segment the domain is  4 ≤ x < 5  

Therefore, the total domain of g(x) will be  {x| –2 ≤ x < 5} (Answer)

8 0
3 years ago
Read 2 more answers
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