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Trava [24]
3 years ago
10

Which graph represents the function (x) = -1x - 21 - 1?

Mathematics
1 answer:
Olin [163]3 years ago
8 0

Answer:

Given in the graph

Step-by-step explanation:

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Find the coordinates of the intersection of the diagonals of parallelogram HJKL with the given vertices: H(-1, 4), J(3, 3), K(3,
lakkis [162]

Answer:

(1, 1)

Step-by-step explanation:

Given vertices of the <u>parallelogram</u>:

  • H = (-1, 4)
  • J = (3, 3)
  • K = (3, -2)
  • L = (-1, -1)

Therefore the <u>parallel sides</u> are:

\sf \overline{HJ} \parallel \overline{LK}\:\: \textsf{ and }\:\: \overline{LK} \parallel \overline{HL}

Therefore, the <u>diagonals</u> of the parallelogram are:

\sf \overline{LJ} \:\: \textsf{ and }\:\:\overline{HK}

To find the <u>coordinates of the intersection of the diagonals</u>, either:

  1. draw a diagram (see attached) and determine the point of intersection of the diagonals from the diagram, or
  2. determine the midpoint of either diagonal (as the diagonals of a parallelogram bisect each other, i.e. divide into 2 equal parts).

<u>Midpoint between two points</u>

\textsf{Midpoint}=\left(\dfrac{x_2+x_1}{2},\dfrac{y_2+y_1}{2}\right)\quad \textsf{where}\:(x_1,y_1)\:\textsf{and}\:(x_2,y_2)\:\textsf{are the endpoints}}\right)

To find the <u>midpoint of diagonal LJ</u>, define the endpoints:

  • (x_1,y_1)=L=(-1, -1)
  • (x_2,y_2)=J=(3,3)

Substitute the defined endpoints into the formula and solve:

\begin{aligned} \implies \textsf{Midpoint of LJ} & =\left(\dfrac{3-1}{2},\dfrac{3-1}{2}\right)\\ & =\left(\dfrac{2}{2},\dfrac{2}{2}\right)\\ & =\left(1,1\right) \end{aligned}

Therefore, the coordinates off the intersection of the diagonals of parallelogram HJKL are (1, 1).

Learn more about midpoints here:

brainly.com/question/27962681

8 0
2 years ago
Read 2 more answers
2/7 x N = 8/5 <br> What is the fraction for N?
olga nikolaevna [1]

Answer:

Assuming ur solving for n

2/7n=8/5

Sinc edits a proportion cross multiply

now you’d get 28=5n

Or if you solve

n= 28/5 or 5 3/5

5 0
3 years ago
Read 2 more answers
Write the fraction 27/63 in simplest form ?
BARSIC [14]

Answer:

3/7

Step-by-step explanation:

both of them divisible by 9

5 0
3 years ago
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Sin(θ) cos(3θ) + cos(θ) sin(3θ) = 0
pychu [463]

\displaystyle\\&#10;\text{We use formula:}\\&#10;\sin(\alpha+\beta)=\sin(\alpha)\cos(\beta)+cos(\alpha)\sin(\beta)\\\\&#10;Resolve:\\\\&#10;\sin(\Theta)cos(3\Theta)+cos(\Theta)sin(3\Theta)=0\\\\&#10;\sin(\Theta+3\Theta)=0\\\\&#10;\sin(4\Theta)=0\\\\&#10;\text{We have two solutions:}\\\\&#10;4\Theta=0~~\Longrightarrow~~\Theta=\frac{0}{4}=0~~\Longrightarrow~~ \boxed{\Theta_1=0+2k\pi}\\\\&#10;4\Theta=\pi~~\Longrightarrow~~\Theta=\frac{\pi}{4}~~\Longrightarrow~~ \boxed{\Theta_2=\frac{\pi}{4}+2k\pi}\\\\



5 0
3 years ago
Use the product to sum formulas to write the product as a sum or difference
alina1380 [7]
Ok can you please show the formula or give more information please
6 0
3 years ago
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