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Lena [83]
3 years ago
15

Which is a Linear Equation? A. Y=3-2x B. Y= -7x^2 C. Y=2-3x^2 D. Y=-7×^3

Mathematics
2 answers:
scoray [572]3 years ago
8 0

Answer:

C

Step-by-step explanation:

I've done this and I got it right

creativ13 [48]3 years ago
3 0

Answer:

(A)

Step-by-step explanation:

A linear equation can be written in slope intercept form, y=mx+b.

X must be in it's first power in a linear equation. X being in any other power will result in a curved line.

This eliminates B, C and D already. X is not in it's first power in the given three options.

The best option is A.

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A tiny but horrible alien is standing at the top of the Empire State Building (which is
Leto [7]

Answer:

87.7 degrees.

Step-by-step explanation:

In triangle ABC, attached.

The height of the building |AB|=443 meters

The distance of the agent across the street , |BC|=18 meters

We want to determine the angle at C.

Now,

Tan C=\dfrac{|AB|}{|BC|} \\C=arctan (\dfrac{|AB|}{|BC|} )\\=arctan (\dfrac{443}{18} )\\=87.67^\circ\\\approx 87.7^\circ $(correct to the nearest tenth)

The agent should sfoot his laser gun at an angle of 87.7 degrees.

7 0
3 years ago
Elizabeth is spinning a spinner with 5 equal sized sections. The sections are numbered 1, 1, 2, 2, 4. Which statement about the
Vinil7 [7]

Answer:

its d

Step-by-step explanation:

the options can be eliminated by using common sense.

8 0
3 years ago
Read 2 more answers
Round 0.977 to the nearest hundredth
UkoKoshka [18]
.98 since the hundredth place is higher than a five it is rounded up
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3 years ago
You are the new manager at Taco bell. A customer told you that they had to wait 13 minutes for their food.You approach your staf
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6 0
2 years ago
Waves with an amplitude of 2 feet pass a dock every 30 seconds. Write an equation for a cosine function to model the height of a
kolbaska11 [484]

Answer:

The cosine function to model the height of a water particle above and below the mean water line is h = 2·cos((π/30)·t)

Step-by-step explanation:

The cosine function equation is given as follows h = d + a·cos(b(x - c))

Where:

\left | a \right | = Amplitude

2·π/b = The period

c = The phase shift

d = The vertical shift

h = Height of the function

x = The time duration of motion of the wave, t

The given data are;

The amplitude \left | a \right | = 2 feet

Time for the wave to pass the dock

The number of times the wave passes a point in each cycle = 2 times

Therefore;

The time for each complete cycle = 2 × 30 seconds  = 60 seconds

The time for each complete cycle = Period = 2·π/b = 60

b = π/30 =

Taking the phase shift as zero, (moving wave) and the vertical shift as zero (movement about the mean water line), we have

h = 0 + 2·cos(π/30(t - 0)) = 2·cos((π/30)·t)

The cosine function is h = 2·cos((π/30)·t).

4 0
3 years ago
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