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3 years ago

Write each percent as a fraction in simplest form? 1. 75%

Mathematics

1 answer:

dem82 [27]3 years ago

5 0

Answer:

3/4

Step-by-step explanation:

As a decimal, 75% is 0.75, which is 3/4

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I Need Help Only #8

Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Consider the function f ( x ) = − 2 x 3 + 27 x 2 − 108 x + 9 . For this function there are three important open intervals: ( − [

Darya [45]

Answer:

Step-by-step explanation:

<u>Increasing and Decreasing Intervals of Functions</u>

Given f(x) as a real function and f'(x) its first derivative.

If f'(a)>0 the function is increasing in x=a

If f'(a)<0 the function is decreasing in x=a

If f'(a)=0 the function has a critical point in x=a

As we can see, the critical points may define open intervals where the function has different behaviors.

We have

$f ( x ) = - 2 x^3 + 27 x^2 - 108 x + 9$

Computing the first derivative:

$f' ( x ) = - 6 x^3 + 54 x - 108$

We find the critical points equating f'(x) to zero

$- 6 x^3 + 54 x - 108=0$

Simplifying by -6

$x^2 -9 x +18=0$

We get the critical points

$x=3,\ x=6$

They define the following intervals

$(-\infty,3),\ (3,6),\ (6,+\infty)$

Thus A=3 and B=6

3 0

3 years ago

Factorise the following 4(x-1)²-9 need solution

kumpel [21]

Answer:x= 5/2 x= -1/2

Step-by-step explanation:

4(x-1)2-9

4(x2-2x+1) - 9

4x2 - 8x + 4 - 9

4x2 - 8x - 5

4x2 +2x - 10x - 5

2x(2x+1) - 5(2x+1)

(2x-5)(2x+1)

therefore, x= 5/2 x= -1/2

mark brainliest plzz

6 0

2 years ago

The three medals earned in the Olympics are the gold, silver, and bronze medals. In the 2014 Winter Olympics, the United States

marta [7]

Answer:

Let x be the number of silver medals.

As there were two more gold medals than silver ones, gold medals are x+2

We also know that the number of bronze medals was 4 less than the sum of gold and silver, so if there are x + 2 of gold and x of silver, there are x+x+2-4 of bronze.

Now, we can do an equation, as we know there were a total of 28 medals:

x + x + 2 + x + x + 2 - 4 = 28

And we isolate x:

4x = 28

x = 28/4 = 7

There were 7 silver medals, so there were 9 gold ones (7-2) and 12 of bronze (9+7-4).

4 0

3 years ago

the volume of a square shipping container is 15,625 cubic inches. Find the edge length of the shipping container

Llana [10]

Answer:

24.9 repeating in

Step-by-step explanation:

$\sqrt[3]{15,625}$ = 24.9 repeating.

Basically, just find the cube root of 15,625. Since, the object is a cube, the volume formula is V= $a^{3}$ . Just undo the $a^{3}$ by finding the cube root. Hope this helps!!

7 0

3 years ago