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3 years ago

!!!BRAINLIEST!!!

Mathematics

2 answers:

VladimirAG [237]3 years ago

7 0

Answer:

275

Step-by-step explanation:

40% + 4%

250 + 25 = 275

625 x .44 = 275

stira [4]3 years ago

3 0

Answer:

= 275

Step-by-step explanation:

40% of 625 = 625 x 0.40 = 250

625 x 0.04 = 25

so 625 x 0.44 = 275

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20). If 5X = 20, then X = 4

kondaur [170]

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Factor f(x) = 15x^3 - 15x^2 - 90x completely and determine the exact value(s) of the zero(s) and enter them as a comma separated

Illusion [34]

Answer:

$x=-2,0,3$

Step-by-step explanation:

We have been given a function $f(x)=15x^3-15x^2-90x$ . We are asked to find the zeros of our given function.

To find the zeros of our given function, we will equate our given function by 0 as shown below:

$15x^3-15x^2-90x=0$

Now, we will factor our equation. We can see that all terms of our equation a common factor that is $15x$ .

Upon factoring out $15x$ , we will get:

$15x(x^2-x-6)=0$

Now, we will split the middle term of our equation into parts, whose sum is $-1$ and whose product is $-6$ . We know such two numbers are $-3\text{ and }2$ .

$15x(x^2-3x+2x-6)=0$

$15x((x^2-3x)+(2x-6))=0$

$15x(x(x-3)+2(x-3))=0$

$15x(x-3)(x+2)=0$

Now, we will use zero product property to find the zeros of our given function.

$15x=0\text{ (or) }(x-3)=0\text{ (or) }(x+2)=0$

$15x=0\text{ (or) }x-3=0\text{ (or) }x+2=0$

$\frac{15x}{15}=\frac{0}{15}\text{ (or) }x-3=0\text{ (or) }x+2=0$

$x=0\text{ (or) }x=3\text{ (or) }x=-2$

Therefore, the zeros of our given function are $x=-2,0,3$ .

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4 years ago

What is the square root of -1

patriot [66]

Answer:

Step-by-step explanation:

This is the answer you get when you square and you get a negative number.

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3 years ago

The record for the boston marathons wheel chair division is 1 hour, 18 minutes, and 27 seconds. The boston marathon is 26.2 mile

Black_prince [1.1K]

I believe a marathoner would have to go approximately 2.9 mph . And or if you are rounding 3.0 mph

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3 years ago

!!!*BRAINLIEST*!!!

!!!BRAINLIEST!!!