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2 years ago

Which pair of functions have the same domain?

Mathematics

2 answers:

Alecsey [184]2 years ago

7 0

Answer:

It’s option three because both of their domains are all real numbers

Step-by-step explanation:

devlian [24]2 years ago

5 0

Answer:

i think its 3

Step-by-step explanation:

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Find the product in simplest form.<br> Square root of 2x * square root of 8x^3

Alex17521 [72]

Step-by-step explanation:

= √2x × √8x³

= √(2.8x^4)

= √16x^4

= 4x²

6 0

1 year ago

Ned help with this don't anwser if you don't know

Delvig [45]

Answer:

f(x) = 2x + 2

Step-by-step explanation:

1×2=2+2=4

3×2=6+2=8

and keep going

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2 years ago

A car is being driven at a rate of 40 ft/sec when the brakes are applied. The car decelerates at a constant rate of 10 ft/sec2.

IRISSAK [1]

Answer:

80 feet

Step-by-step explanation:

Given:

Initial speed of the car ( $v_0$ ) = 40 ft/sec

Deceleration of the car ( $\frac{dv}{dt}$ ) = -10 ft/sec²

Final speed of the car ( $v_x$ ) = 0 ft/sec

Let the distance traveled by the car be 'x' at any time 't'. Let 'v' be the velocity at any time 't'.

Now, deceleration means rate of decrease of velocity.

So, $\frac{dv}{dt}=-10\ ft/sec^2$

Negative sign means the velocity is decreasing with time.

Now, $\frac{dv}{dt}=\frac{dv}{dx}(\frac{dx}{dt})$ using chain rule of differentiation. Therefore,

$\frac{dv}{dx}\cdot\frac{dx}{dt}= -10\\\\But\ \frac{dx}{dt}=v.\ So,\\\\v\frac{dv}{dx}=-10\\\\vdv=-10dx$

Integrating both sides under the limit 40 to 0 for 'v' and 0 to 'x' for 'x'. This gives,

$\int\limits^0_{40} {v} \, dv=\int\limits^x_0 {-10} \, dx\\\\\left [ \frac{v^2}{2} \right ]_{40}^{0}=-10x\\\\-10x=\frac{0}{2}-\frac{1600}{2}\\\\10x=800\\\\x=\frac{800}{10}=80\ ft$

Therefore, the car travels a distance of 80 feet before stopping.

4 0

2 years ago

Is this right if not please tell me the right answer

zhuklara [117]

Answer: 57% for the first and 41% for the second

Step-by-step explanation:

Treatment 1 consists of 40 people and 23 had improved health take 23 and divide it by 40 and you get 0.575 multiply that by 100 and you get 57% do the same for the second question and you get 0.416 multiply by 100 and you get 41%

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2 years ago

What magic trick does mr. utterbunk perform every evening

Kruka [31]

You have to finish writing the question for someone to answer

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2 years ago