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Dafna11 [192]
3 years ago
5

Is 13.99 the same as 13.990

Mathematics
2 answers:
Zigmanuir [339]3 years ago
4 0
Assuming that the numbers haven't been rounded off, then yes, they are the same.
igomit [66]3 years ago
4 0
Yes 13.99 is the same s 13.990 because if you add a 0 then your adding nothing the number won't get any higher if you only put 0s

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Priya makes bracelets for her online store. Her monthly business expenses are $520. She sells an average of 80 bracelets per
ch4aika [34]

Answer:

B

Step-by-step explanation:

Profit = total revenue - total cost

total revenue = 80 x b

total cost = 520

the profit has to be at least $1240

80 x 22 = 1760

1760 - 520 = 1240

b is correct

5 0
3 years ago
Matthew walks 5/8 to the bus stop each morning. How far will he walk in 5 days?
fomenos
5 points not 10 but 5/8 each day 5 days=5 times 5/8=5/1 times 5/8=25/8=24/8+1/8=3+1/8=3 and 1/8 3 and 1/8 mile
8 0
3 years ago
Of all the listeners who call the local radio station on the telephone , 60% are between the ages of 15 and 25. a random number
aivan3 [116]

Answer:

Step-by-step explanation:

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7 0
3 years ago
There is a lightning rod on top of a building. From a location 500 feet from the base of the building, the angle of elevation to
Kitty [74]
<h2>Hello!</h2>

The answer is:

The height of the  lightning rod is 27.4 feet.

<h2>Why?</h2>

To solve the problem, we need to use the given information about the two points of observation, since both are related (both finish and start at the same horizontal distance) we need to write to equations in order to establish a relationship.

So, writing the equations we have:

We know that the angle of elevation from the base of the buildings is 36°

Also, we know that from the same location, the angle of elevation to the top of the lightning rod is 38°.

Using the information we have:

To the top of the building:

tan(\alpha )=\frac{DistanceToTheTopOfTheBuilding}{BuildingBase}\\\\tan(36\°)=\frac{DistanceToTheTopOfTheBuilding}{BuildingBase}

To the top of the lightning rod:

tan(\alpha )=\frac{DistanceToTheTopOfTheLightningRod}{BuildingBase}\\\\tan(38\°)=\frac{DistanceToTheTopOfTheLightningRod}{BuildingBase}

Now, isolating we have:

tan(36\°)=\frac{DistanceToTheTopOfTheBuilding}{BuildingBase}\\\\DistanceToTheTopOfTheBuilding=tan(36\°)*BuildingBase \\\\DistanceToTheTopOfTheBuilding=tan(36\°)*500feet=363.27feet

Also, we have that:

tan(38\°)=\frac{DistanceToTheTopOfTheLightningRod}{BuildingBase}\\\\DistanceToTheTopOfTheLightningRod=tan(38\°)*BuildingBase\\\\DistanceToTheTopOfTheLightningRod=tan(38\°)*500feet=390.64feet

Therefore, if we want to calculate the height of the lightning rod, we need to do the following:

Let "x" the distance to the top of the building and "y" the distance to the top of the lightning rod, so:

LightningRodHeight=y-x=390.64feet-363.27feet=27.37feet

Rounding to the nearest foot, we have:

LightningRodHeight=y-x=390.64feet-363.27feet=27.37feet=27.4feet

Hence, the answer is:

The height of the lightning rod is 27.4 feet.

Have a nice day!

5 0
3 years ago
PLEASE! PLEASE HELP ME!!!!
Nataliya [291]

Answer:

c and d

Step-by-step explanation:

ok so i do not know how to explain

5 0
3 years ago
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