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LUCKY_DIMON [66]
3 years ago
15

7x + 2x^2 + 3x^2 - 2x

Mathematics
1 answer:
slava [35]3 years ago
8 0

Answer:

Step-by-step explanation:

Explanations are below

Step 1

7x + 2x^2 + 3x^2 - 2x  Observe the equation

Step 2

7x + 2x^2 + 3x^2 - 2x  Combine the like terms

(2x^2+3x^2)+(7x+-2x)

Step 3

(2x^2+3x^2)+(7x+-2x)  Simplify by adding and subtracting

Answer: 5x^2+5x

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How much is 1 foot line of quarters worth
Alborosie

a quarter is 1.75 mm thick

1 mm = 0.0393701 inches

0.0393701/12 = 25.4 mm per inch

25.4/1.75 = 14.5 quarters per inch

14.5 x 12 = 174 quarters per foot

174 x 0.25 = 43.50

$43.50 for a foot of quarters


5 0
3 years ago
What is the answer ?
Alja [10]
I plugged it into my calculator and I got 1,870.
6 0
3 years ago
What is the slope of y = 1 + 5?
IgorLugansk [536]

Step-by-step explanation:

if there is no typo, then that is

y = 1 + 5 = 6

y = 6

has no term in x.

that means 6 is the constant result of the line function, no matter what x value we pick.

and that means this is a horizontal line (parallel to the x-axis) going through the point y=6 or (0, 6).

remember that the slope is the ratio "y coordinate change / x coordinate change".

but y is not changing at all, the change or difference is always 0 no matter what points we pick on the line.

and so, the slope ratio is always "0/...". and that is 0.

so, the slope of that line is 0.

but if there is a typo, then please know : the slope of a line

y =ax + b

is always a (the factor of x).

6 0
3 years ago
Greg has 2 bags with 7 marbles in each bag Sarah has 10 bags with marbles in each bag how many more marbles does Sarah have
Troyanec [42]
56, because you times 7 by 2 because Greg has 2 then you times 7 by 10 because then you get the answers 14 and 70 and take them away from each other
7 0
3 years ago
the sides of a triangle is 6,8,15 cm long. in a similar triangle, the longest side is 21 cm long find the two sides.
Varvara68 [4.7K]
Longest Side is 15 and 21.
Find the ratio which is 21/15.
= 1.4 , so every side multiply by 1.4 will give the size of the sides of the other triangle.

*note : it's a similar triangular so enlargement is used and the enlargement factor (k) is = 1.4*

so. 6 × 1.4 = 8.4
and. 8 × 1.4 = 11.2.
8 0
3 years ago
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