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Pachacha [2.7K]
4 years ago
12

Find the exact value of 75(degrees); leave answer in simplest radical form. Enter terms under the radical in number order.

Mathematics
1 answer:
podryga [215]4 years ago
5 0

Answer:

sin75º=sin(30)º+45º)

=sin 30 cos 45+cos 30 sin 45

=1/2*√2/2+√3/2*√2/2

=√2/4+√6/4

=(√2+√6)/4

Check with calculator:

sin 75º≈0.9659

exact value=(√2+√6)/4≈0.9659

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2 years ago
The density of a fish tank is 0.2fish over feet cubed. There are 8 fish in the tank. What is the volume of the tank?
Sedbober [7]
For this case the density is given by:
 D = fish / volume
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3 years ago
Name of the geometric solid suggested by a number cube
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3 years ago
A baker has small and large bags of sugar for making cakes. The large bag contains 30 cups cups of sugar and is 2.5 times larger
adell [148]

Answer:

Step-by-step explanation:

The first thing we need to focus on is the fact the large bag (30 cups) is 2.5 larger than the small bag. So, the first we need to do is divided 30 by 2.5, which is 12. (300/25 = 30/2.5 = 12, in case you're confused.) So the small bag has 12 cups of sugar.

What that down, we need to focus how many cakes the small bag can make, which was 9. 3/4 of a cup is left over. We can create an equation from that info, that being 9x + 0.75 = 12. Now let's solve for x.

9x + 0.75 = 12

<em>First, subtract 0.75 from both sides. With that, we can solve for x directly.</em>

9x = 12 - 0.75

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<em>Now, divide both sides by 9.</em>

x = 11.25/9

x = 1.25

With that, we now know that each cake needs 1.25 cups of sugar.

With that, the last thing we need to is divide 30 by 1.25. Again, I can use powers of ten, to quickly divide 3000 by 125 (10²) to get 24 cakes.

With that done, we have our answer. 24 cakes can be made with a large bag of sugar.

<em>I hope this helps!  (⌒ω⌒)</em>

5 0
3 years ago
The width of Joy’s bed is 60 inches and the distance between opposite corners is 100 inches. What is the Length of Joy’s bed?
topjm [15]

Answer:

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Step-by-step explanation:

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3,600+b²=10,000

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b=80

7 0
3 years ago
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