Three less than two times a number is 5. What is the number? equation: n =

For the following expression, complete each task:

Scorpion4ik [409]

Part 1: 6x+ -10y+ -2z+ 12
Part 2: What order do you want it to be?
6x+12+-10y+-2z
-2z+-10y+6x+12

Part 3:
2(3x+-5y+-z+6)

8 0

3 years ago

Which of the following are true statements

Verizon [17]

I think it's 2,5,6 because a rational number is a number that can be put in a fraction.

Examples:

3/7 (3 over 7)

-2/5 (-2 over 5)

And 4, which can be put as 4/1 (4 over 1) in fraction form

3 0

3 years ago

What is the value of x? Round your answer to the nearest tenth if necessary.

katen-ka-za [31]

So to start off:

The equation you will want to use for the hypotenuse is

A (squared) + B (squared) = C (squared)

So you will want to fill in the equation like so:

7(7) + 4(4) = C (squared)

So now that you have your information filled out, put it all together!

49 + 16 = 65

Now don't forget that the 65 is SQUARED!

You will want to use the SQUARE ROOT method to help with that!

So what you will want to do is think of the numbers that are PERFECT SQUARES.

A perfect square consist of

Here is the list of perfect squares 1-10:

1 x 1 = 1

2 x 2 = 4

3 x 3 = 9

4 x 4 = 16

5 x 5 = 25

6 x 6 = 36

7 x 7 = 49

8 x 8 = 64

9 x 9 = 81

So look closely at these perfect squares, Do you see where 65 will lie?

It will lie between 8 and 9.

So you will do the square root now.

√65

The answer will come out as:

8.06225775

You will then round it to the nearest tenths place (one after the decimal)

You will look at the two numbers behind the decimal which is

0.6.

As you know,(If you round the tenths place), if the number in the hundredths is 5 or HIGHER. It will round up the number in the tenths place to 1.

So as we know 6 is higher than 5 so your answer would be:

8.1

I hope this helped! :)

>^.^<

( )~

3 0

3 years ago

Read 2 more answers

Find the inverse of the Function <img src="https://tex.z-dn.net/?f=f%28x%29%3D%5Csqrt%5B3%5D%7B%5Cfrac%7Bx%7D%7B9%7D%20%7D%2

scoray [572]

9514 1404 393

Answer:

D

Step-by-step explanation:

Solve x = f(y) for y.

x = ∛(y/9) -4

x +4 = ∛(y/9) . . . . . add 4

(x +4)³ = y/9 .. . . . . cube

9(x +4)³ = y . . . . . . multiply by 9

The inverse function is ...

f⁻¹(x) = 9(x +4)³ . . . . . matches the last choice

6 0

3 years ago

The population of a species is modeled by the equation p(t)=-t^4+72t^2+225, where t is the number of years. find the approximate

Shtirlitz [24]

Answer:

The approximate number of years until the species is extinct will be 9 years

Step-by-step explanation:

We are given

The population of a species is modeled by the equation

$p(t)=-t^4+72t^2+225$

where

t is the number of years

we have to find time when species extinct

we know that any species will be extinct only if population of that species becomes 0

so, we can set P(t)=0

and then we can solve for t

$p(t)=-t^4+72t^2+225=0$

we can factor it

$(t^2+3)(t^2-75)=0$

$(t^2+3)=0$

we get t value as imaginary for this equation

$(t^2-75)=0$

$t=\sqrt{75}$

$t=8.660$

So,

the approximate number of years until the species is extinct will be 9 years

8 0

4 years ago