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3 years ago

What is -4y+7y²+7x-x+3y+x-4y

Mathematics

2 answers:

Dmitrij [34]3 years ago

7 0

Answer:

-5y+7y²+7x

Step-by-step explanation:

Since two opposites add up to zero, remove the from the expression

-4y+7y²+7x3y-4y

Collect like terms

-5y

Answer= -5y+7y²+7x

Zanzabum3 years ago

4 0

Step-by-step explanation:

look at the pic................... hope it helps

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Gre4nikov [31]

Answer:

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6 0

3 years ago

Read 2 more answers

Brainliest for the correct answer :)

KiRa [710]

$\huge \mathrm{ \underline{ \underline{Àñswér}}}$

The Area of Shaded region is equal to the difference in Area of rectangle and Area of triangle .

let's solve for area of rectangle :

$➢ \: \: length \times width$

$\longrightarrow8 \times 3x$

$\longrightarrow24x$

Now, Area of Triangle :

$➢ \: \dfrac{1}{2} \times base \times height$

$\longrightarrow \dfrac{1}{2} \times 4 \times x$

$\longrightarrow2x$

So, the area of the shaded region in terms of x :

$\longrightarrow24x - 2x$

$\longrightarrow22x$

And since, Area of Shaded region = 44 cm²

By equating the area, we get

$\large \boxed{ \boxed{22x = 44}}$

Value of x = 2

$\mathrm{✌TeeNForeveR✌}$

4 0

3 years ago

Read 2 more answers

1. Let U the set of students of the university of Cambridge. Let the subsets of U:

Marysya12 [62]

Answer:

A) A ∩ C means in both sets, in this case A and C, and in this question all students both over 20 years and with social stratum of 1, 2 and 3.

B) A ∪ B means in either set or both, both will do, in this case meaning all students in A or B or any in between, and in this question all students over 20 years and/or are women.

C) As is already explained above, B ∪ C means in this question all students that are women and/or have social stratum of 1, 2, and 3.

D) This is the same as A). Refer to A).

E) A ∪ C is already explained above, and in this question means all students over 20 years and/or have social stratum of 1, 2, and 3.

F) Same as E). Refer to E).

G) Same as A). Refer to A).

H) A ∩ B ∩ C means in students in all three sets simultaneously, and in this question all students that are over 20 years, women, and with social stratum of 1, 2 and 3.

I) A - B, in set theory would mean all students in A but not in B, in other words the difference. In this question, it would mean all students over 20 years that are not women.

J) (A - B) ∩ C would mean, as already explained above, all students over 20 years that are not women and with social stratum of 1, 2 and 3. Usually, it's easier to treat all unions or intersections or whatnot inside brackets as one whole thing, kind of like how you do algebra.

K) B 4 C is nonsensical, there is nothing in set theory like this.

L) Same as K).

The given description between C) and D) would be that they are the same, and comparing F) and G), it seems that the question is trying to make the point that they are almost the same but defined differently.

Step-by-step explanation:

Hope this helped!

6 0

2 years ago

4(x−2+y) It's for khan academy

inessss [21]

The answer is 4x-8+4y i think?

4 0

2 years ago

Find the quotient of -85^2-27n+76 / -17n-19

bagirrra123 [75]

Answer:
5n-4

Explanation:
The given expression is:
$\frac{-85n^2-27n+76}{-17n-19}$

1- Take the negative as a common factor from both the numerator and the denominator. This will give us:
$\frac{-(85n^2+27n-76)}{-(17n+19)}$

2- Cancel out the negative sign (common factor) from the numerator and denominator. This will give us:
$\frac{(85n^2+27n-76)}{(17n+19)}$

3- Factor the numerator. This wil give:
$\frac{(5n-4)(17n+19)}{(17n+19)}$

4- Finally, cancel out the (17n+19) which common in both numerator and denominator. This will give us the final expression:
5n-4

Hope this helps :)

6 0

3 years ago