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3 years ago

Subtract the polynomials. (5x^2 −3x − 2) − (−2x^2 − x + 10)

Mathematics

2 answers:

Eva8 [605]3 years ago

8 0

Answer:

7x^2−2x−12

Step-by-step explanation:

zhuklara [117]3 years ago

4 0

Let's simplify step-by-step.5x2−3x−2−(−2x2−x+10)Distribute the Negative Sign:=5x2−3x−2+−1(−2x2−x+10)=5x2+−3x+−2+−1(−2x2)+−1(−x)+(−1)(10)=5x2+−3x+−2+2x2+x+−10Combine Like Terms:=5x2+−3x+−2+2x2+x+−10=(5x2+2x2)+(−3x+x)+(−2+−10)=7x2+−2x+−12Answer:=7x2−2x−12

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Christiana and Marlena opened their first savings accounts on the same day. Christiana opened her account with $55 and plans to

PolarNik [594]

Answer: it will take 4 months for the amount to be the same and the amount would be $95

Step-by-step explanation:

Let x represent the number if months it will take for the two accounts have the same amount of money.

Christiana opened her account with $55 and plans to deposit $10 every month. This means that the amount that in the account after x months would be

10x + 55

Marlena opened her account with $35 and plans to deposit $15 every month. This means that the amount that in the account after x months would be

15x + 35

For the amount in the accounts to be the same, the number of months would be

15x + 35 = 10x + 55

15x - 10x = 55 - 35

5x = 20

x = 20/5

x = 4

The amount would be

15 × 4 + 35

= 60 + 35

= $95

8 0

3 years ago

Read 2 more answers

Romeo will roll a 6-sided number cube, numbered 1-6, twice. What is the probability of rolling an odd number on the 1st roll and

elena-s [515]

1st rol= 3/6
2nd roll= 1/6

8 0

2 years ago

Which equation results from adding the equations in this system? 11 x minus 3 y = -17. Negative 4 x + 3 y = - 18.

marta [7]

Answer:

Therefore the results from adding the equation in this system is

$7x=-35$

Step-by-step explanation:

Given:

Equations as

$11x-3y=-17$ .......................1

$-4x+3y=-18$ .......................2

To Find :

Result when adding equation 1 and 2 = ?

Solution

On adding equation 1 and 2 the "3y" term will get cancel and the like terms will combine that is add (11x and -4x ) and ( -17 and - 18) as shown below

11x - 3y = -17

-4x + 3y = - 18

-------------------------------------------

7x + 0 = - 35

---------------------------------------------

Therefore the results from adding the equation in this system is

$7x=-35$

7 0

3 years ago

Read 2 more answers

Please help and show your work-desperate

Dominik [7]

Answer:

$2\frac{7}{16}$ inches

Step-by-step explanation:

Since 1 mi = 5,280 ft., to convert miles to feet, multiply by 5,280.

96 mi. = 96(5,280 ft.)

96 mi. = 506,880 ft.

Since 1 ft. = 12 in., to convert feet to inches, multiply by 12.

506,,800 ft. = 506,880(12 in.)

506,880 ft. = 6,082,560 in.

The map scale is 1 in. represents 2,500,000 in.

$\frac{6,082,560}{2,500,00} = 2.4330...$

The distance on the map between Nanaimo and Campbell River is approximately $2\frac{7}{16}$

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3 years ago

There are ----- pairs of the perpendicular line segments shown in the picture of the box .

dimaraw [331]

Yeah there is 8 pairs in it I believe so

4 0

3 years ago