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FromTheMoon [43]
3 years ago
12

What's the complete factorization of 10a^2 - 40a + 30?

Mathematics
1 answer:
geniusboy [140]3 years ago
5 0
Ok first you want to reduce down to get the poly into its smallest form. You can do this by dividing by 10 which leaves you with a^2-4a+3. Now you use regular factoring rules. For this equation you need what multiplies to get +3 and adds to get -4. Which is a -1 and a -3. Now you put it into the blanks to get        10(a-1)(a-3)
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What binomial do you have to add to the polynomial 2x^2+3y^2-5xy+1 to get the following?
Contact [7]

Binomial -3y^{2}+5xy when added to polynomial 2x^{2} +3y^{2} -5xy+1  gives  polynomial  that does not contain the variable y .

<h3>What is binomial?</h3>

A mathematical expression consisting of two terms connected by a plus sign or minus sign .

Example: x + 2 is a binomial, where x and 2 are two separate terms.

<h3>What is polynomial?</h3>

A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer

According to the question

polynomial 2x^{2} +3y^{2} -5xy+1

when added with  -3y^{2}+5xy  

= 2x^{2}+1   (as 3y^{2} -5xy got cancelled )

that does not contain the variable y

Hence, Binomial -3y^{2}+5xy when added to polynomial 2x^{2} +3y^{2} -5xy+1  gives that does not contain the variable y .

To know more about Binomial and polynomial here :

brainly.com/question/1698358

# SPJ2

3 0
2 years ago
Read 2 more answers
A restaurant bill is $84.96. Estimate a 20% tip. Estimate a 15% tip.
Lisa [10]
If you have to estimate I will put $85 and then to find 20 % you just have to kniw that 10% is equal to 8.5 you just move a decimal then you just add 8.5 plus 8.5 = 17 so 20% of 85 is equal to $17 and to find 15% you already know how much is 10%=8.5 so you just need to find 5% that is equal to 4.25 and then you just add 4.25 to 8.5 and that's equal to 12.75

20%= 17
15%=12.5
4 0
3 years ago
Read 2 more answers
Simplify 3/5 • 3/4 .
Ostrovityanka [42]

Answer:

9/20 as a faction as a decimal 0.45

Step-by-step explanation:

Simplify 3/5 • 3/4

I hope this help

4 0
3 years ago
Four students have summer jobs. The table shows how much each student earns after working a certain number of hours. Which stude
vlada-n [284]

Answer:

C Jacob

Step-by-step explanation:

Alfredo: 157.5/18 = 8.75

Helene: 198/24 = 8.25

Jacob: 142.5/15 = 9.53

Leonna: 111/12 = 9.25

7 0
3 years ago
What's the answer to this question, a salesperson receives a 3% commission on sales the salesperson receives a $180 in commissio
VikaD [51]
$5.40 is off
180-5.4= $174.60
7 0
3 years ago
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