3 years ago

Are the ratios, 3/7 and 8/27 proportional or not? Thanks! :D

Mathematics

2 answers:

Naddika [18.5K]3 years ago

5 0

No. None of the numbers in the proportion
3/7:8/27 can equal each other without decimals.

dolphi86 [110]3 years ago

5 0

No they are not for a few reasons

You might be interested in

Giving brainliest :)

Verizon [17]

Answer:

$f^{-1}(x)=x^2+1$

Step-by-step explanation:

The inverse of a function is when the x and y are swapped. So the first step is to write f(x) as y and then swap the x and y

Original Equation:

$f(x)=\sqrt{x-1}\\$

write f(x) as y (since that's what it represents)

$y=\sqrt{x-1}$

Swap x and y

$x=\sqrt{y-1}$

Square both sides

$x^2=y-1$

Add 1 to both sides

$x^2+1=y$

So this gives you the equation:

$f^{-1}(x)=x^2+1$

8 0

2 years ago

Given f(x) = -* -<br> - 5, solve for x when f(x) = -3.

Ne4ueva [31]

Answer:

x = -2

Step-by-step explanation:

Step 1: Define

f(x) = -x - 5

f(x) = -3

Step 2: Substitute and Evaluate

-3 = -x - 5

2 = -x

x = -2

7 0

3 years ago

Read 2 more answers

Which irrational number can be multiplied by (the picture) to get a product that equals 1?

umka2103 [35]

$\sqrt{41} \times \frac{1}{\sqrt{41}} = 1$

5 0

3 years ago

Read 2 more answers

Need help ASAP!?

qaws [65]

Answer: The correct answer is B) 19.5(sin35)

Step-by-step explanation:

I took the practice

8 0

2 years ago

Simplify.

Lubov Fominskaja [6]

the answer for this question in 9x-18 (a)

hope it helps you!!!!!!!!!

6 0

3 years ago