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Alika [10]
3 years ago
7

2) Shawn's cat is currently stuck in a tree. Shawn has a ladder that is 15 feet long and he places the ladder 10 feet from the b

ase of the tree. At what angle of depression is Shawn's cat looking at him?

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0

Answer:

48.19°

Step-by-step explanation:

Check the attachment for the diagram.

The set up is a right angled triangle

Using the SOH, CAH, TOA trigonometry ratio to get the angle of depression theta.

The length of the ladder will be the hypotenuse of the triangle.

If he places the ladder 10 feet from the base of the tree, the adjacent of the triangle will be the base of the triangle.

Given Hypotenuse = 15feet

Adjacently = 10feet

According to CAH;

cos(theta) = Adjacent/Hypotenuse

cos(theta) = 10/15

cos(theta) = 2/3

theta = arccos(2/3)

theta = 48.19°

Shawn cat is looking at him at an angle of depression of 48.19°

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Step-by-step explanation:

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You collect pennies. you start with one penny and double the number of pennies you have each day for the next 27 days. how many
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Imagine, at the first day you have only one penny. Then tomorrow you have 2 pennies, next day you have 4 (2x2), next day you have 8 (4x2), next day you have 16 (8x2).... and so forth.

It looks like geometric sequence isn't it? (the ratio between the number of pennies that you have from the 2nd day and the 1st day is 2)

So, by using geometric sequence theorem we can total those pennies until day-27

S (total pennies at day-27) = (1)(2^27-1) / 2-1 = 2^26 pennies

So, you have 2^26 pennies.. a big number of pennies huh?=))


{The formula is: S = a( r^n-1) / r-1
Where:
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n= number of days you spent to collect those pennies)
r= the ratio of the number of pennies}
7 0
3 years ago
Eight hotdogs at the basketball park cost $28 how much does one hotdog cost
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6 0
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3 0
3 years ago
6. Solve by factoring: 2x²-11x+14=0
Mariana [72]

Step-by-step explanation:

Solve 2x^2-11x+14=0 give me 2 ways to get the 2 values of x?

The first way is to make factors by middle-term splitting. You get (x-2)(2x-7)=0, so the solution is x=2,7/2.

The other way is to use the formula for the solution of roots. Roots= (-b+ rootD)/2a, (-b-rootD)/2a, if the equation is of the form ax^2+bx+c=0. Here D is the discriminant. D=b^2-4ac

How do I solve 12x^2+11x+2=0?

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First method :

By breaking 'b' factor of x into two parts using factors of 'ac' ( a *c)

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Second method:

make equation in the form of (x+h)^ 2 - k = 0 ; then x+h = +sqrt(k) and -sqrt(k)

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(x-11/4)^2 = (121/16) - 7 = 9/16

x- 11/4 = 3/4 and -3/4

x = 14/4 and 8/4 = 7/2 and 2

3 0
2 years ago
Read 2 more answers
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