All categories

3 years ago

Y

Mathematics

1 answer:

Brut [27]3 years ago

4 0

-4 lol what’s this about

You might be interested in

Is the function given by, (Picture Provided)

Sever21 [200]

Answer:

a. yes

Step-by-step explanation:

The given function is

$f(x)=\left \{ {{3x-2,if\:x\le3} \atop {10-x,if\:x\:>\:3}} \right.$

$f(3)=\left \{ {{3(3)-2,if\:x\le3} \atop {10-3,if\:x\:>\:3}} \right.=7$

$\lim_{x \to 3^-} f(x)=3(3)-2=7$

$\lim_{x \to 3^+} f(x)=10-3=7$

$\Rightarrow \lim_{x \to 3} f(x)=7$

Since;

$\lim_{x \to 3} f(x)=f(3)$

The function is continuous at $x=3$

7 0

3 years ago

A quadratic equation is shown below:

mylen [45]

The radicand of a quadratic is b^2-4ac.

If it is greater than zero, there are two real solutions

If it is equal to zero, there is one real solution

If it is less than zero, there are no real solutions (though there are two imaginary solutions)

In this case the discriminant is 256-2160 so it is less than zero.

Therefore there are no real solutions, though there are two imaginary solutions, specifically (16±i√-1904)/18

4 0

3 years ago

Select the FALSE statement.

MrMuchimi

Here's the Answer,

=》sin 45º = cos 45º - True

=》sin 30º = cos 30° - false

=》cos 10º = sin 80° - true

=》sin 15° = cos 75° - true

8 0

3 years ago

a car was purchased last year for $28,500. now its value is $25,510. at what rate is the car's value depreciating each year?

DanielleElmas [232]

Answer:

The car's value is depreciating by $2,990 per year.

Step-by-step explanation:

To solve this problem, we just need to subtract the cars value this year, or $25,510, from the car value of last year, or $28,500.

28,500 - 25,510 = $2,990

Since the car value was $2,990 more just last year, the car's value is depreciating by $2,990 per year.

Hope this helps! :D

8 0

3 years ago

Determine the scale factor for triangle ABC to Triangle A'B'C'.

Juli2301 [7.4K]

D. 1/2 due to the fact that 10 would be over 20 so 10/20 and simplified is 1/2.

3 0

3 years ago