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svlad2 [7]
3 years ago
13

Susan and Tammy are 20 miles apart and spot a ufo in the sky between them. The angle of elevation from Susan to the ufo is 15 an

d Tammy to the ufo is 35 how far away is the ufo from Susan
Mathematics
1 answer:
Alenkasestr [34]3 years ago
5 0

Answer:

Since we know the distance from Susan and Tammy is 20 miles and the ufo is between them, then the ufo is 10 miles from Susan.

The angle of elevation is 15 and we can use the cosine ratio- adjacent/hypotenuse(which is the answer we're looking for)

Cos15 = 10/x

cos15(x) = 10/x(x)

cos15(x)/cos15 = 10/cos15

x = 10/0.96592583

x= 10.35 (which is your answer)

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Answer:

Step-by-step explanation:

Let x represent the number of phone call that she routes.

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3 years ago
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Each of two urns contain green balls and red balls. Urn 1 contains 8 green balls and 12 red balls. Urn 2 contains 5 green balls
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For Urn 1, 
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The probability of picking both red balls from the two urns is the product of the two probabilities which gives us the answer which is equal to 24/65. The answer is letter B. 
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4 years ago
Which of the relations given by the following sets of ordered pairs is a function?
exis [7]

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Option (4)

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4 0
2 years ago
Plz Help 20 points Polynomials
dlinn [17]

Answer:

\huge\boxed{1.\ 2y-11}

\huge\boxed{2.\ 8x^5y^7z^2}

\huge\boxed{3.\ x^3-9x^2+14x+24}

Step-by-step explanation:

1.\\(-)(-)=(+)\\(-)(+)=(-)\\(+)(-)=(-)\\(+)(+)=(+)\\\\(-y^2-4y-8)-(-4y^2-6y+3)\\\\=-y^2-4y-8-(-4y^2)-(-6y)-3\\\\=-y^2-4y-8+4y^2+6y-3\\\\\text{combine like terms}\\\\=(-y^2+y^2)+(-4y+6y)+(-8-3)\\\\=2y-11

2.\\\text{Use}\ a^n\cdot a^m=a^{n+m}\\\\2x^2y^3z^2\cdot4xy^4x^2=(2\cdot4)(x^2xx^2)(y^3y^4)z^2=8x^{2+1+2}y^{3+4}z^2\\\\=8x^5y^7z^2

3.\\\text{Use FOIL:}\\\\(a+b)(c+d)=ac+ad+bc+bd\\\\(x-4)(x^2-5x-6)\\\\=(x)(x^2)+(x)(-5x)+(x)(-6)+(-4)(x^2)+(-4)(-5x)+(-4)(-6)\\\\=x^3-5x^2-6x-4x^2+20x+24\\\\\text{combine like terms}\\\\=x^3+(-5x^2-4x^2)+(-6x+20x)+24\\\\=x^3-9x^2+14x+24

4 0
3 years ago
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