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3 years ago

Can someone help me with this? ^_^ 4(-3f-4)-9f4(−3f−4)−9f

Mathematics

1 answer:

Iteru [2.4K]3 years ago

8 0

-12f-16+108f^2-+144f-9f
-108f^2+123f-16
I hope that what you need

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If military time is 0145, what time is it on a regular clock

fenix001 [56]

I love military time its 1:45 am

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3 years ago

You can paint 75 square feet of a surface every 45 minutes. Determine how long it takes you to paint a wall with the given dimen

marin [14]

Answer:

25.2 minutes

Step-by-step explanation:

step 1

Find the area of the given wall

$A=(7)(6)=42\ ft^2$

step 2

we know that

You can paint 75 square feet of a surface every 45 minutes

using proportion

Find out how long it takes you to paint a surface area of 42 square feet

$\frac{75}{45}\ \frac{ft^2}{min}=\frac{42}{x}\ \frac{ft^2}{min}\\\\x=45(42)/75\\\\x=25.2\ min$

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3 years ago

What is the unit price of oreos

icang [17]

Answer:

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Step-by-step explanation:

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2 years ago

Which function has a domain of all real numbers?

Aliun [14]

Answer:

Step-by-step explanation:

$( {2 x})^{ \frac{1}{3} } - 7 = \sqrt[3]{2x} - 7$

8 0

1 year ago

You give tours on the Great Lakes and talk about points of interest. A lighthouse typically has 2 beacons that rotate together—b

tatiyna

Since the beacons rotate together, the angular speed is constant.

From the time you see the first beacon, you have to wait for the lighthouse to make 120°, i.e. 1/3 of a whole turn.

So, if T is the time it takes for the lighthouse to make a whole turn, the interval between the first and the second beacon is T/3.

The interval between the second and third beacon is the amount of time it takes to the lighthouse to make the remaining 2/3 of a turn, so that you'll see the first beacon again. So, this time is 2T/3

So, the ratio is

$\dfrac{2T}{3}\div\dfrac{T}{3}=\dfrac{2T}{3}\cdot\dfrac{3}{T}=2$

So, the time between the second and third beacon is twice as much the time between the first two.

5 0

3 years ago