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3 years ago

(02.05)The figure shows three quadrilaterals on a coordinate grid:

Mathematics

2 answers:

erastovalidia [21]3 years ago

7 0

Nd f are similar but not congruent in other words the answer is A!!!

denis-greek [22]3 years ago

5 0

Answer:

A. D and E are similar but not congruent.

Step-by-step explanation:

The side lengths of D are 3 units and 1 unit. The side lengths of E are 2 units and 6 units. The sides are proportional, but are not congruent; this means that the quadrilaterals are similar but not congruent. Choice A is true and choice C is false.

The side lengths of E are 2 units and 6 units. The side lengths of F are 3 units and 1 unit. The sides are proportional, but are not congruent; this means that the quadrilaterals are similar but not congruent. Choice B is false.

The side lengths of D are 3 units and 1 unit. The side lengths of F are 3 units and 1 unit. The sides are congruent; this means that the quadrilaterals are congruent. Choice D is false.

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Add the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending powers o

tresset_1 [31]

ANSWER
$13 {x}^{3} - 2 {x}^{2} + 3x + 13$

EXPLANATION

The first polynomial is
$5 {x}^{3} + 3 {x}^{2} - 5x + 4$

The second polynomial is
$8 {x}^{3} - 5 {x}^{2} + 8x + 9$

If we add the two polynomials we obtain,

$(5 {x}^{3} + 3 {x}^{2} - 5x + 4) + (8 {x}^{3} - 5 {x}^{2} + 8x + 9)$

Next we group like terms to obtain,

$5 {x}^{3} + 8 {x}^{3}+ 3 {x}^{2} -5 {x}^{2} - 5x + 8x + 9 + 4$

We simplify the to obtain,

$13{x}^{3} -2{x}^{2} + 3x + 13$

This is the sum of the two polynomials in descending powers of
$x$

Descending means from the highest power to the least.

8 0

3 years ago

Please help I don’t understand! #10

Sergeeva-Olga [200]

Answer:

This answer on 10 looks too be 75 inches

Step-by-step explanation:

Mark me brainliest : ) do good

7 0

3 years ago

Help with these 2 questions pls

wariber [46]

Answer:

6 .

4X + 2 + X = 8X +2 -3X

5X+2=5X+2

0=0

The two sides of the equation are always equal ,so 3 or any other number can be a solution for it .

6X+6-3X+6= X+4

3X+12= X+4

2X= -8

X= -4

Hope it was helpful .

5 0

3 years ago

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I need help please?!!

Nataly [62]

Answer:

- 5

Step-by-step explanation:

The opposite of 7c is the negative of 7c, that is - 7c

Thus the sum of 7c - 5 and the opposite of 7c is

7c - 5 + (- 7c) = 7c - 5 - 7c = - 5

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3 years ago

Luke has $120 to buy two watches that cost $58 each and one chain for $13 . Select the answer that uses reasonable estimation to

Alexus [3.1K]

3. No, Lucas does not have enough money. $58 + 58+ 13 = 129
Lucas would be nine dollars over budget.

Hope this helped :)

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3 years ago

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