2 years ago

Find the difference: 489 - 18.6

Mathematics

1 answer:

marta [7]2 years ago

6 0

Answer:

470.4

Step-by-step explanation:

489-18.6

8 10

489.0

- 18.6

470.4

You might be interested in

What is the square root of pi?

qwelly [4]

The square root of Pi is approximately 1.77245.

6 0

2 years ago

Piper deposited $734.62 in a savings account that earns 2.6% simple interest. What is Piper’s account balance after seven years?

r-ruslan [8.4K]

That would be $868.32 okay :)

5 0

2 years ago

How much money does the dessert store make from selling three muffins and four cakes?

Lapatulllka [165]

Answer:

If everything is a dollar then the store will make $7 from selling all of those treats.

Step-by-step explanation:

8 0

2 years ago

What type of conic section is given by the equation 4x^2+9y^2=36? What are its domain and range?

Damm [24]

$4x^2+9y^2=36\\
\\
\frac{4x^2}{36}+\frac{9y^2}{36}=\frac{36}{36}\\
\\
\boxed{\frac{x^2}{9}+\frac{y^2}{4}=1}$

This is a equation of a ellipse (0,0) centered

Domais: {x∈R/-3≤x≤3}
Range:{y∈R/-2≤y≤2}

4 0

2 years ago

Read 2 more answers

You are riding a roller coaster when a shoe falls off your foot. The function y=300−16t2 represents the height y (in feet) of th

Juli2301 [7.4K]

Answer:

Time to land on 11ft is 4.25 seconds

Step-by-step explanation:

Given

$y = 300 - 16t^2$

Required

Solve for t when height is 11ft

This implies that $y = 11$

So: substitute 11 for y in $y = 300 - 16t^2$

$11 = 300 - 16t^2$

Collect Like Terms

$16t^2 = 300 - 11$

$16t^2 = 289$

Express both sides as squares

$4^2 * t^2 = 17^2$

$(4t)^2 = 17^2$

Take square roots of both sides (ignore negative)

$4t = 17$

Solve for t

$t = \frac{17}{4}$

$t = 4.25$

Hence, time to land on 11ft is 4.25 seconds

8 0

2 years ago