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faltersainse [42]
3 years ago
10

What Correct Solution That Define m(x) as a trinomial where, m(x)=(x+2)(7x-1)+3xsquar2-2

Mathematics
1 answer:
Rom4ik [11]3 years ago
8 0
(x + 2)(7x - 1) + 3x^ -2
= 7x^2 + 14x - x - 2 + 3x^2 - 2
= 10x^2 + 13x - 4  Answer

Its choice A
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Sammy bought a car and got a discount of 2/5 off the original price of $30,000. How much did Sammy pay for the car after the dis
SVETLANKA909090 [29]

Answer:

$18000

Step-by-step explanation:

To find the do $30000/5 ( do divide the price into 5 parts)

30000/5

6000

5/5 minus 2/5

3/5

6000 times 3

18000

3 0
3 years ago
In science class, the girl to boy ratio is 3 to 7.
Mariana [72]

Answer:

There are <u>35 boys</u> in the class.

Step-by-step explanation:

Girls to Boys ratio = 3:7

Total number of students in class = 50

Let total number of girls be '3x' and total number of boys be '7x'

Total number of girls + Total number of boys = Total number of students

3x + 7x = 50

10x = 50

x = 50/10

x = 5

\therefore

Total number of girls = 3 × 5 = 15

Total number of boys = 7 × 5 = 35

7 0
3 years ago
CAN SOMEONE HELP ME​
ANTONII [103]

Answer:

C is the answer

you can also see

7 0
3 years ago
Pls help asap i will give brenerlist plus 10 points
Anastasy [175]

12 meters longer than his throw = t+12

So, option C is correct.

Step-by-step explanation:

We need to translate the word phrase into a math expression.

the word phrase is:

12 meters longer than his throw

Let throw = t

So, 12 meters longer than his throw = t+12

So, option C is correct

Keywords: translate the word phrase into a math expression.

Learn more about translate the word phrase into a math expression at:

  • brainly.com/question/1600376
  • brainly.com/question/1617787
  • brainly.com/question/9720317

#learnwithBrainly

7 0
3 years ago
Help please help me its a hard one
DanielleElmas [232]

Answer:

The sum of a and b is 12.

Step-by-step explanation:

Try drawing this figure. ABCD would actually be a triangle, rather than the common quadrilateral you would expect -  considering there are 4 points plotted. Therefore, we would have to find the distance between respective points ( 0, 1 ) and ( 2, 5 ) / ( 2, 5 ) and ( 7, 0 ) / ( 0, 1 ) and ( 7, 0 ). Let's apply the distance formula and calculate the distance between each point, therefore determining the perimeter.

Distance between points ( 0, 1 ) and ( 2, 5 )

= \sqrt{(2-0)^2+(5-1)^2}

= \sqrt{(2)^2+(4)^2}

= \sqrt{4+16}

= \sqrt{20} = 2\sqrt{5}

Distance between points ( 2, 5 ) and ( 7, 0 )

= \sqrt{(7-2)^2+(0-5)^2}

= \sqrt{5^2+(-5)^2}

= \sqrt{25+25}

= \sqrt{50} = 5\sqrt{2}

And you can calculate the distance between points ( 0, 1 ) and ( 7, 0 ) to be exactly 5\sqrt{2} as well. Therefore, you can say that the perimeter of this triangle is 2(5\sqrt{2}) + 2\sqrt{5} = 10\sqrt{2} + 2\sqrt{5}. Note that this is similar to the form we are given. Thus, a = 10, and b = 2 - making it's sum 10 + 2 = 12.

8 0
4 years ago
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