All categories

2 years ago

PLEASE HELP!!!!!!! :/

Mathematics

2 answers:

Dafna1 [17]2 years ago

6 0

Answer:

its a 20

Step-by-step explanation:

gregori [183]2 years ago

5 0

The answer is 45 when you substitute all the variables in

You might be interested in

The diameter of a spherical basketball is 10 inches.

maksim [4K]

Answer:

523.6

Step-by-step explanation:

Here is the equation to get that answer:

V=4/3πr3=4/3·π·53≈523.59878

6 0

3 years ago

The scale on the map is stated as 1 : 200000. A main road connects two towns which are 28 kilometres apart. How far will it be o

loris [4]

Answer:

The distance on the map between the two towns=14 cm

Step-by-step explanation:

Step 1

Express the scale as;

1:200,000 this means that 1 cm on the map represents 200,000 cm on the road, 1 cm:200,000 cm

Step 2

Convert 28 kilometers to m

1 meter=1,000 kilometers

28 kilometers=28×1,000=28,000 meters

Convert 28,000 meters to centimeters

1 meter=100 centimeters

28,000 meters=28,000×100=2,800,000 centimeters

Step 3

Using the scale factor of 1:200,000 convert 2,800,000 cm on the road can be converted to map measurements as follows;

Distance on the map=scale factor×distance on the road

where;

scale factor=1/200,000

distance on the road=2,800,000 cm

replacing;

Distance on the map=(1/200,000)×2,800,000

Distance on the map=14 cm

The distance on the map between the two towns=14 cm

5 0

3 years ago

What is the scientific notation for 0.01.

Aliun [14]

Answer:

10000 = 1 x 104

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

please help! functions and relations. f(x)= square root of x-4. find the inverse of f(x) and it’s domain.

likoan [24]

ANSWER:

$\:D.\text{ }f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge-4$

STEP-BY-STEP EXPLANATION:

We have the following equation:

$f(x)=\sqrt{x}-4$

The inverse is the following (we calculate it by replacing f(x) by x and x by f(x)):

$\begin{gathered} x=\sqrt{f^{-1}(x)}-4 \\ \\ \sqrt{f^{-1}(x)}=x+4 \\ \\ f^{-1}(x)=(x+4)^2 \end{gathered}$

The domain would be the range of the original equation, and it would be the range of values that f(x) could take, which was from -4 to positive infinity, that is, f(x) ≥ -4.

Therefore, the domain is x ≥ -4.

So the correct answer is D.

$\:f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge -4$

4 0

1 year ago

Heather spent $38.50. heather spent 1/3 of what anthony spent

mariarad [96]

Answer:

Anthony spent $115.50 hope this helps

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers