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3 years ago

What is the value of x?

Mathematics

1 answer:

navik [9.2K]3 years ago

5 0

3x+84=180 minus 84
3x = 96 divide both sides by 3
x= 32°

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Can someone explain why the ans is X=6? Its (x-6)

andrew-mc [135]

Answer:

because either x-6=0 or x+1=0

x-6=0

x=0+6

x=6 OR,

x+1=0

x=0-1

x=-1

Step-by-step explanation:

5 0

3 years ago

Which one is smaller, 2 6/25 or 2 1/8

max2010maxim [7]

Answer:

2 1/8

Step-by-step explanation:

both have 2 as a whole number

now make fraction into decimal

6/25 is 0.24 and and 1/8 is 0.125

therefore 2 1/8 is smaller

8 0

3 years ago

Read 2 more answers

a typical marathon is 26.2 miles Aleexis averages 12 km per 1 hour when running in marathons. Use dimensional Analysis to determ

yanalaym [24]

3 hours and 51 minutes

5 0

3 years ago

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 $x=-2,0,3$ .

7 0

3 years ago

A pool has an area of 1,275 m2 and a width of 25 1/2 m. What is the length of the pool.

lisov135 [29]

Answer:

50m is the length of the pool

Step-by-step explanation:

area= length * width

length= area/ width

1275/ 25.5 = 50

5 0

3 years ago