MATHEMATICS MIDDLE SCHOOL

Parallelogram A B C D is shown. The length of A B is (9 x minus 14) inches and the length of D C is (3 x + 4) inches. In parallelogram ABCD, what is DC? (trust me) 13 in.

Answers

Answer 1

Answer:

Answer:

$DC=13\ in$

Step-by-step explanation:

we know that

in a parallelogram, opposite sides are congruent

In this problem

AB and DC are opposite sides

therefore

AB=DC

substitute the given values

$9x-14=3x+4$

solve for x

$9x-3x=4+14\n6x=18\nx=3$

Find the length of side DC

$DC=3x+4$

substitute the value of x

$DC=3(3)+4=13\ in$

Answer 2

Answer:

Answer:

i just took the test and 13 in. was the right answer

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Y=-3x+24x-15 in vertex form

Answers

Answer: (4,-38) i think

Y = a(x-h)^2+k
First divide factor out -3 so Y = -3(x^2-8x+5)
Then complete the square:
Y = -3(x^2-8x+16+5-16)
Y = -3(x-4)^2+33

Which of the following is equivalent to (5 /k) + ((k + 3) /(k + 5)) ?A. (k +8) /(2k + 5)
B. (k + 8) /k(k + 5)
C. 5(k + 3) /k(k + 5)
E. (k^2+ 8k + 25) /k(k + 5)

Answers

$(5)/(k)+(k+3)/(k+5)=(5(k+5))/(k(k+5))+(k(k+3))/(k(k+5))=(5k+25+k^2+3k)/(k(k+5))=(k^2+8k+25)/(k(k+5))\n\nAnswer:E$

Answer:

E is the answer.

Step-by-step explanation:

Help please K? cya gtg

Answers

Answer:

Pretty sure its Quadratic

Step-by-step explanation:

Linear, needs to be in a straight line.

Quadratic, involving the second and no higher power of an unknown quantity or variable.

Exponential, (of an increase) becoming more and more rapid.

How can I get straight A's

Answers

By being smart...
Or studying and listening and taking notes in class

You should take notes during class and do revisions when you get home always write down your home work study stuff like that

Find the distance between the points (5/2,3) and (3/2,8)

Answers

Answer:

d = $√(26)$ ≈ 5.1 ( to 1 dec. place )

Step-by-step explanation:

to calculate the distance d use the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = ( $(5)/(2)$ , 3) and (x₂, y₂ ) = ( $(3)/(2)$ , 8)

d =√ ( $(3)/(2)$ - $(5)/(2)$ )² - (8 - 3)²

= $√(1+25)$ = $√(26)$ ≈ 5.1

Describe two different strategies you could use to add 16+35+24+14

Answers

Additions strategies assist children in learning number relationships and comprehending why quantities connect. When kindergartners were allowed to regularly answer addition problems that enhanced skills provide a framework for understanding mathematics at the elementary level.

Given:

$\bold{16+35+24+14}$