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Vilka [71]
3 years ago
12

Look at the expressions. -2×^3 -19×^2y -15×y. +11×^2y What are the like terms?

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0

Answer:

-19x^2y and 11x^2y are like terms.

Step-by-step explanation:

Recall what "like terms" means in an algebraic expression: Those terms that have the same variables at exactly the same exponents.

so in the expression: -2x^3-19x^2y-15xy+11x^2y the second term and the fourth one are like terms. Notice that both terms have the variables: x^2y with the variable "x" to the power 2, and with the variable y to the first power.

-19x^2y and 11x^2y are like terms.

Therefore, those are the only terms you can combine to reduce the expression.

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Using 6 as a denominator, what fraction completes the following
mixas84 [53]

Answer:

B

Step-by-step explanation:

We can start by converting 1 into 6/6 and 1/3 into 2/6. This makes subtraction much easier, and by subtracting the numerators, (6/6 - 2/6) you should get 4/6.

5 0
3 years ago
I don't like word problems, i need help with this guys
alina1380 [7]
Okay so first we want to find out how many cans one person uses a year. To find this we divide 16,801 by 53 and we get 317 cans a year. Using this we can find how many cans 1,694,000 people use a year by multiplying the people by 317. You get 536,998,000 cans a year, which is your answer.
7 0
3 years ago
How much more is 3 1/4 than 1 3/4
Stels [109]

Answer:

1 and 1/2

Step-by-step explanation:

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4 0
4 years ago
The average weight of a group of seven boys is 56 kg. The individual weights (in kg) of 6 of them are 52,57,55,60,59 and 55. fin
garik1379 [7]

Answer:

54 kg

Step-by-step explanation:

Total weight of 7 boys is 392 kg. And other 6 boys total weight is 338 kg.

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7 0
3 years ago
Read 2 more answers
A rectangle or piece of paper has a width is 3 inches less than its link it is cut in half along a diagonal to create two congru
kolezko [41]

The length and width of the rectangle is 11 in and 8 in respectively.

Step-by-step explanation:

Given,

The width of a rectangle is 3 in less than the length.

The area of each congruent right angle triangle = 44 in²

To find the length and width of the rectangle.

Formula

The area of a triangle with b base and h as height = \frac{1}{2}bh

Now,

Let, the width = x and the length = x+3.

Here, for the triangle, width will be its base and length will be its height.

According to the problem,

\frac{1}{2}×(x+3)×x = 44

or, x^{2} +3x = 88

or,x^{2} +3x-88 = 0

or, x^{2}+(11-8)x-88 = 0

or, x^{2}+11x-8x-88 =0

or, x(x+11)-8(x+11) = 0

or, (x+11)(x-8) = 0

So, x = 8 ( x≠-11, the length or width could no be negative)

Hence,

Width = 8 in and length = 8+3 = 11 in

3 0
3 years ago
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