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lyudmila [28]
3 years ago
12

Find w and y without a calculator, will give brainliest for the correct answer

Mathematics
1 answer:
love history [14]3 years ago
6 0

Answer: w=4, y=4

Step-by-step explanation:

For this problem, we can use the 30-60-90 triangle to find out what the length of w and y are. 30-60-90 triangle is a special triangle. The hypotenuse is 2x in length. It is directly opposite the right angle. The leg opposite of 60° is x√3 in length. The leg opposite of 30° is x. For all 3 legs, wherever you see x, you plug in the same number.

We can look at the figure as 2 separate triangles.

For the triangle on the right, we can see the hypotenuse is 8. Since we know the length of the hypotenuse is 2x, we can plug in 8 for 2x to find x.

2x=8

x=4

Now that we know x=4, we can directly plug it into the lengths above.

W is across from 30°. Above, we have established that the leg across from 30° has the length of x. Since x=4, w=4.

Since w=4, we can use this information to find the length of y by looking on the left triangle. Now, y is across from 30°. In the first paragraph, we stated that the leg across from 30° is x. Since we know x, we can directly plug it into this. After we plug it in, y=4.

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lana66690 [7]

Yes, it can. On most things (especially clothes and furniture) they will be already marked up 100% before the mark down. For example; even if they have a, let's say, 40% off sale on the shirt, they will still make a 10% profit off the shirt. So pretty much in most cases, there will still be a profit out of the merchandise.

This is for the Journal Activity on e2020. The words required to pass the written response are as follows: Yes, profit, less, more, greater, much.

Use any 2 of those words in your response and you will pass it.

Have a good day everyone! :)

6 0
3 years ago
The price of a computer component is decreasing at a rate of ​12% per year. State whether this decrease is linear or exponential
Pie

Answer:

In three years, cost (Value) = 47.70

Step-by-step explanation:

When the decrease is relative to the last value, it is exponential.

Depreciations are usually exponential.

In three years,

Value = 70*(1-0.12)^3

= 47.70

3 0
3 years ago
Which of the following is the solution to the compound inequality below? 3x+4>13 or 2x-1<-11
stepladder [879]

Answer: Option D. x>=3   or   x<=-5

Solution:

3x+4>=13 or 2x-1<=-11

3x+4-4>=13-4   or   2x-1+1<=-11+1

3x>=9   or   2x<=-10

3x/3>=9/3   or   2x/2<=-10/2

x>=3   or   x<=-5

4 0
3 years ago
What the opposite integer of 10
inysia [295]
The opposite integer of 10 is -10
7 0
3 years ago
Read 2 more answers
The steps to convert 18 over 8 to a decimal are shown below: Division is shown with divisor 8 and quotient 2.35 and dividend 18.
natka813 [3]

Answer:

Step 2

18 over 8 to a decimal is 2.25

Step-by-step explanation:

Step 1, 20, subtract 16 labeled as

Step 2, 40 labeled as

Step 3, subtract 40, and 0 labeled as Step 4.

Divisor = 8

Divided = 18

Quotient = 2.25

2.25

8 √18

- 16

2 0

- 16

4 0

- 40

0

The first error is at step 2

18 over 8 to a decimal is 2.25

See the attached image for better understanding

4 0
3 years ago
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