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2 years ago

What are the roots of f(x) = x2 – 48?

Mathematics

2 answers:

notsponge [240]2 years ago

7 0

Answer:

(x +sqrt(48)) (x-sqrt(48))

Step-by-step explanation:

sqrt = Square Root

sqrt(48) = 6.928

lana66690 [7]2 years ago

6 0

Answer:

If you mean x-intercepts and your equation is x^2 -48 then the roots are +6.928 and -6.928

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Rory was with some friends outside an ice cream parlor. He noticed that one out of every four people bought a vanilla cone. He w

suter [353]

Answer:

"Spin the spinner 5 times with 4 equal segments. One of the segment represents vanilla on either the spinner as well as three parts reflect certain flavors" would be the right answer.

Step-by-step explanation:

The actual probability of the given scenario will be:

⇒ $(1-\frac{1}{4})^5$

⇒ $(1-0.25)^5$

⇒ $(0.75)^5$

On solving the power, we get

⇒ $(0.237304)$

Now on multiplying the above value in 100, we get

⇒ $23.73$ %

Approximately 23.73% chance vanilla was not chosen by either of the five. So that the above is the right answer.

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1 year ago

Tyler plans to snowboard for 7 days. A daily ticket costs $50, but there is a

earnstyle [38]

Answer:

Step-by-step explanation:

$8.75

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1 year ago

A bicycle tire has a diameter of 62 cm

anzhelika [568]

Answer

1946.8 cm

Step-by-step explanation:

you first need to find the circumference of the tire. to do this you use the formula C=d(3.14)

you plug in the 62 to the d

62 times 3.14 = 194.68

and multiply that by 10 because it is 10 revolutions to get 1946.8 cm

5 0

2 years ago

In the diagram, AC=BD=17 and BC=3. The length of segment AD is

Anastaziya [24]

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2 years ago

Salmon often jump waterfalls to reach their breeding grounds. One salmon starts 2.00m from a waterfall that is 0.55m tall and ju

Law Incorporation [45]

Answer: 6.2 m/s

Explanation:

1) This is a projectile motion (parabolic)

2) Velocity:

i) initial velocity = V₀

ii) Horizontal component:

V₀x = V₀ cos α

The horizontal velocity is constant, so Vx = V₀x

ii) Vertical component:

V₀y = V₀ sin α

The vertical component is linear with acceleration = g ≈ 9.8 m/s²

Vy = V₀y - gt = V₀ sin α - gt

3) Displacement equations

i) Horizontal displacment:

x = V₀ cosα t

ii) Vertical displacement:

y = V₀ sin α t - g t² / 2

y ≈ V₀ sin α t - 4.9 t²

4) Solution

i) x = V₀ cosα t = V₀ cos(32°) t = 2.00 m ← salmon starts 2.00m from a waterfall

⇒ V₀ = 2 / [cos(32°) t ]

ii) y = V₀ sin α t - 4.9 t² = V₀ sin(32°) t - 4.9 t²

iii) Replace V₀ with 2 / [cos(32°) t ]

y = sin(32°) × 2 / [cos(32°) t ] × t - 4.9t² = 2 tan(32°) - 4.9t²

iv) Use jump's height (y = 0.55m) and solve

⇒ 0.55 = 2 tan(32°) - 4.9t²

t² = [2 tan(32°) - 0.55 ] / 4.9 = 0.143 s²

⇒ t = √ (0.143s²) = 0.38 s

v) Use V₀ = 2 / [cos(32°) t ] to find V₀

V₀ = 2 / [cos(32°) (0.38) ] = 6.2 m/s

8 0

1 year ago

Read 2 more answers