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STatiana [176]
3 years ago
10

Solve 10 and 11 . Show and explain your work.

Mathematics
1 answer:
DaniilM [7]3 years ago
6 0

Answer:

500-75y=x.    And.       44+14y=x.  No work needed

Step-by-step explanation:

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From the hay loft door, Ted sees his dog on the ground. The angle of depression of the dog is 40º. Ted's eye level is 16 feet ab
Vlad1618 [11]

Answer: 19 feet

Step-by-step explanation:

Hi, since the situation forms a right triangle (see attachment) we have to apply the next trigonometric function.  

Tan α = opposite side / adjacent side  

Where α is the angle of depression of the dog, the opposite side (16) is Ted's eye level above the ground, and the adjacent side (x) is the distance between the dog and the barn door.

Replacing with the values given:  

tan40 = 16/x

Solving for x  

x =16/tan40

x= 19 ft  

Feel free to ask for more if needed or if you did not understand something.  

5 0
3 years ago
I don't get it can u help me??
andrew-mc [135]

Just look at the percentages and make them into fractions. You can think about it like money. 50 cents is half of a dollar, so %50 is 1/2. for the decimals, you just take the percent and put a decimal point in front of the answer, so 28% is .28, 50% is .50, 18% is .18. For fraction to decimals, you could just put 1 divided by 4 into a calculator and it will tell you .25, which is the decimal, and 25 cents is one fourth of a dollar, so it works out.

Hope this helps! Let me know if you have any more questions!

6 0
3 years ago
Radius 12 what is the diameter
solniwko [45]

Answer:

24

Step-by-step explanation:

radius is one half of the diameter so 12×2=24

6 0
3 years ago
Read 2 more answers
For the equation r/3+t=w express r in terms of t and w
KengaRu [80]

r/3 + t = w  to get r by itself (Which I think is your question)

r/3 + t = w  subtract t from both sides

r/3 = w - t  and times by 3 on both sides

r = 3(w-t)

7 0
4 years ago
1/2x^2 + 4x - 1 = 0<br> How to factor it
LenaWriter [7]

Answer:

x + 4 - 3√2 and x + 4 + 3√2

Step-by-step explanation:

When other methods seem to difficult to apply, try using the quadratic formula:

Here a = 1/2, b = 4 and c = -1.

Then the "discriminant" is b^2 - 4ac, or

(4)^2 - 4(1/2)(-1), or 16 + 2 = 18

Then the roots are:

     

      -4 ± √18, or -4 ± 3√2

and thus the factors are x + 4 - 3√2 and x + 4 + 3√2

x = ---------------------

3 0
4 years ago
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