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4 years ago

If JK LM , which statement is true ?

Mathematics

2 answers:

Alika [10]4 years ago

7 0

The answer to this question would be: B. JK and LM meet at a right angle.

The reversed T symbol in this question means "perpendicular". That means the JK and LM line have 90-degree angle difference. A straight angle is 180 degree and right angle mean 90 degrees.
A perpendicular line should be in the same plane and intersect each other.

12345 [234]4 years ago

4 0

The correct answer is B

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Plz, help ASAP!!!!!!!<br> will mark brainliest

Anarel [89]

Answer:

139

Step-by-step explanation:

first you need to find the x:

180= 8x + 51 + 6x - 25

180 - 51 +25 = 8x + 6x

154 = 14x

154/14 = x = 11

then you have to work out AOB:

8x +51

8(11) +51

88+51 = AOB = 139

to check your work, workout angle BOC and add both. angles together to check if you get 180:

BOC= 6x - 25

6(11) - 25

66 - 25 = 41

To check:

BOC + AOB = 180

41 +139 = 180

180 = 180

Hope this helps!

8 0

4 years ago

The image of a triangle after it has been dilated with a center at the origin has vertices at A’(-12,6) B’(6,-18) and C’ if the

ArbitrLikvidat [17]

Answer:

scale factor is 2/3.

coordinates of B are (9,-27).

coordinates of C' are : (12,18)

Step-by-step explanation:

The image of a triangle after it has been dilated with a center at the origin has vertices at A’(-12,6) B’(6,-18) and C’ .

Point A has coordinates of (-18,9) and the pre- image of C' point C has coordinates of (18,12).

Clearly when we compare point A and point A' we see that the transformation is a dilation.

let the scale factor of dilation is 'k'.

i.e. A→ A'

i.e. k(-18,9)=(-12,6)

(-18k,9k)=(-12,6)

i.e. -18k=-12

and 9k=6

Hence, on solving we get:

k=2/3

i.e. the scale factor is 2/3.

Also,

we find the coordinates of B(c,d) by:

2/3(c,d)=(6,-18) since B→ B'

2/3×c=6

Hence c=9

and 2/3 ×d=-18

d=-27.

Hence, the coordinates of B are (9,-27).

Also the coordinates of C are (18,12)

Hence, coordinates of C' are:

$(\dfrac{2}{3}\times 18,\dfrac{3}{2}\times 12)\\\\=(12,18)$

Hence, the coordinates of C' are : (12,18)

7 0

3 years ago

Read 2 more answers

Jon caught four fish that weighed a total of 252 pounds.The kingfish weighed twice as much as the amberjack and the white marlin

fenix001 [56]

1 Amberjack
Kingfish equals 2 Amberjacks
Marlin equals 2 Kingfish or 4 Amberjacks
Tarpon equals 5 AmberJacks

So:
1A plus 2A plus 4A plus 5A equals the 252.
(where A is weight of the AmberJack).

Therefore:
12A equals 252, and A is 21. (252/12 = 21)

Then:
The Amberjack is 21Ibs.
The Kingfish (twice as much as A) is 42Ibs.
The Marlin (four times A) is 84Ibs.
And the Tarpon (five times A) is 105Ibs.

To Check:
21 + 42 + 84 + 105 = 252

8 0

4 years ago

Read 2 more answers

3xy<br> z<br> +2xy-2yz-xz+5x, for x=4, y=6, z=8

Sloan [31]

Answer:

The answer would be 508

Step-by-step explanation:

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3 years ago

Juwan drives an ATV due east from the edge of a road into the woods. The ATV breaks down and stops after he has gone 2000 feet.

Dimas [21]