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Wittaler [7]
3 years ago
5

What two variables are used most often in 2-variable equations?

Mathematics
1 answer:
MAXImum [283]3 years ago
8 0
I believe it is x and y
You might be interested in
38=2a+54 solve equation check your answer
alexgriva [62]

Answer:

a=-8

Step-by-step explanation:

38=2a+54

2a+54=38

2a+54-54=38-54

2a=-16

2a/2=-16/2

a=-8

4 0
3 years ago
In addition to the information given below in the drawing, which statement is sufficient to prove triangle STW similar to triang
elena-s [515]
D

XZ : YZ = 5:8

3 * XY = 27 (9*3 = 27)

3*XZ : 3*YZ = 3*5 : 3*8

SW : TW = 15 : 24

SW = 15 and TW = 24
4 0
3 years ago
Which measure is of an angle that is conterminal with a 95 degree angle
timofeeve [1]

Answer: Choice B

95 - 1080n for any integer n

=================================================

Explanation:

Notice how 1080 is a multiple of 360 since 360*3 = 1080. The other values 1450, 780 and 340 are not multiples of 360. For example 1450/360 = 4.02777 approximately. We need a whole number result to show it is a multiple.

Therefore, choice B shows subtracting off a multiple of 360 from the original angle 95. In my opinion, it would be better to write 95+360n or 95-360n to make it more clear we are adding or subtracting multiples of 360.

Choice B will find coterminal angles, but there will be missing gaps. One missing coterminal angle is 95-360 = -265 degrees. So again, 95-360n is a more complete picture. I can see what your teacher is going for though.

8 0
4 years ago
A rectangular hotel room is 5 meters by 7 meters. The owner of the hotel wants to recarpet the room with carpet that costs $43.0
Margarita [4]

Answer:

$1505

Step-by-step explanation:

area = 5 x 7 = 35 m²

35 m² x $43 per m² = $1505

6 0
3 years ago
4). A piece of wire in the shape of an arc of a circle
STALIN [3.7K]

Answer:

The angle the wire now subtends at the center of the new circle is approximately 145.7°

Step-by-step explanation:

The radius of the arc formed by the piece of wire = 15 cm

The angle subtended at the center of the circle by the arc, θ = 68°

The radius of the circle to which the piece of wire is reshaped to = 7 cm

Let 'L' represent the length of the wire

By proportionality, we have;

L = (θ/360) × 2 × π × r

L = (68/360) × 2 × π × 15 cm = π × 17/3 = (17/3)·π cm

Similarly, when the wire is reshaped to form an arc of the circle with a radius of 7 cm, we have;

L = (θ₂/360) × 2 × π × r₂

∴ θ₂ = L × 360/(2 × π × r₂)

Where;

θ₂ = The angle the wire now subtends at the center of the new circle with radius r₂ = 7 cm

π = 22/7

Which gives;

θ₂ = (17/3 cm) × (22/7) × 360/(2 × (22/7) × 7 cm) ≈ 145.7°.

7 0
3 years ago
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