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quester [9]
2 years ago
9

HELP 100 POINTS PLEASE GET IT RIGHT

Mathematics
2 answers:
Nat2105 [25]2 years ago
5 0

Answer:

Step-by-step explanation:

1) (2x^{2} - 9x + 4) + (3x^{2} + 2x - 3)

= 2x^{2} - 9x + 4 + 3x^{2} + 2x - 3

= 5x^{2} - 7x - 1

2) x^{2} - 4x - 3 + x^{2} -2x - 3

= 2x^{2} - 6x - 6

astra-53 [7]2 years ago
4 0

Answer:

1.) 5x^{2} -7x+1

2.)2(x^{2} -3x-3

Step-by-step explanation:

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HELP PLEASE!!
Harman [31]

Answer:  \text{quadrilateral FSHB}\sim\text{quadrilateral KTWJ }

Step-by-step explanation:

To polygons are said to be similar if all the corresponding angles of given polygons are equal.

In the given figure, it can be seen that in quadrilateral FSHB and quadrilateral KTWJ all the corresponding angles are equal.

∠F=∠K

∠S=∠T

∠H=∠W

∠B=∠J

Therefore, The given polygons are similar.

Hence, \text{quadrilateral FSHB}\sim\text{quadrilateral KTWJ }

7 0
3 years ago
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A diver is swimming at -10m. he then descends 3 m and rises 6 m. at what new level is the diver swimming?
yaroslaw [1]
-10-3+6= -7

hope this helped!!
7 0
3 years ago
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What is the shape of the the cross section<br> PLEASE HELP
Masteriza [31]

Answer: The shape of the cross section will be triangular.

Step-by-step explanation:

The cross section is the shape the shows when you cut a straight line. no matter where you cut it, you will still get a triangle.

4 0
3 years ago
Please anyone help me answer this question am giving the brainliest
DochEvi [55]

Answer:

(-3/2x+1) + (3/x-1)

Step-by-step explanation:

Dont put the answer in parenthesis, I just did that to seprate it so it was easier to read. If you need it to be put in word form for it to be easier for you to understand, its "negative three divided by two x plus one, plus 3 divided by x minus 1"

First, rewrite the expression as 3x+6/2x^2+x-2x-1

Then, factor the expression, 3x+6/x*(2x+1)-(2x+1) (*=multiply)

Then, write a new fraction for each factor in the denominator, then write a new fraction, 3x+6/(2x+1)*(x-1) to (A)/2x+1 + B/x-1)

Then write terms in the numerators, for now we will use A and B.

Now we set the sum of the fractions equal to the original fraction.

3x+6/(2x+1)*(x-1) = A)/2x+1 + B/x-1).

Then reorder and group the terms, giving you 3x+6=(A+2B)x+(-A+B).

Now equate the coefficiants, {6= -A+B, 3= A+2B

Then substitute back, (A, B)=(-3, 3)

Now finally, just rewrite the fraction. (-3/2x+1) + (3/x-1)

Hope this helps! Sorry its kind of long.

6 0
2 years ago
1- Random response The question on the right appears on a survey. Why are people told to roll a dice? It makes the survey more f
stellarik [79]
The answer would be 14 because I don’t know how to explain it
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