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3 years ago

1.If the triangle with vertices A(3,-9) B(-1, 7) C(5, 0) is reflected over the y-axis, what are the coordinates of

Mathematics

1 answer:

Mamont248 [21]3 years ago

3 0

Answer:

25 times 58

Step-by-step explanation:

guessed

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Points P, Q, and S are collinear. What is mZRQS? R ((x + 1) (3x – 5)° s

kiruha [24]

Answer:

m∠RQS = 47°

Step-by-step explanation:

The collinear points form a "straight angle," one whose measure is 180°. That is the sum of the marked values:

(3x -5) +(x +1) = 180

4x = 184

x = 46

m∠RQS = (x+1)° = (46+1)°

m∠RQS = 47°

8 0

4 years ago

Find the perimeter of the polygon with the vertices X(−1, 3), Y(3, 0), and Z(−1,−2). Round your answer to the nearest hundredth

antoniya [11.8K]

Answer:

The perimeter of the polygon is $P=14.47\ units$

Step-by-step explanation:

we know that

The perimeter is the sum of the length sides of the polygon

In this problem

P=XY+YZ+XZ

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

step 1

Find the distance XY

we have

X(−1, 3), Y(3, 0)

substitute

$d=\sqrt{(0-3)^{2}+(3+1)^{2}}$

$d=\sqrt{25}$

$dXY=5\ units$

step 2

Find the distance YZ

we have

Y(3, 0), Z(−1,−2)

substitute

$d=\sqrt{(-2-0)^{2}+(-1-3)^{2}}$

$d=\sqrt{20}$

$dYZ=4.47\ units$

step 3

Find the distance XZ

we have

X(−1, 3), Z(−1,−2)

substitute

$d=\sqrt{(-2-3)^{2}+(-1+1)^{2}}$

$d=\sqrt{25}$

$dXZ=5\ units$

step 4

Find the perimeter

P=XY+YZ+XZ

$P=5+4.47+5=14.47\ units$

5 0

3 years ago

I need to do this it due tommorow

Ierofanga [76]

Answer:

Step-by-step explanation:

when you add all the numbers together you get 14, also where you put the line you can see that the line is a 3 and 5 minus 2 is 3. The next corner next to the 3 is 1 cm because if you look at the horizontal 2 it matches up with the horizontal 1 and 2 minus 1 is 1.

8 0

2 years ago

Let f(x)=x^2+x+2 and g(x)=2x^2+5. find f(g(x)). Show each step of your work. Please help me!

hodyreva [135]

Just let every x in f(x) be g(x)
it means:
f(g(x))=(2x^2+5)^2+(2x^2+5)+2
=4x^4+20x^2+25+2x^2+5+2
=4x^4+22x^2+32

5 0

3 years ago

No i dont want to download ur answer. the area is ___ square units

Zanzabum

Answer: I think it’s 4

Step-by-step explanation: count the squares surrounding the triangle, 4 times 2 is eight 1/2 of that is 4

6 0

3 years ago