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salantis [7]
3 years ago
6

Find the value of each trigonometric ratio. Simplify if you can.

Mathematics
1 answer:
alina1380 [7]3 years ago
5 0

Answer:

5/13

Step-by-step explanation:

cos=adj/hyp=10/26=5/13

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write an expression that has a value of 100 and follows these restrictions. (1) uses each of the four operations at most once. (
posledela
33 * 3 + 3/3 = 100

I do not believe u have to use all of the operations because it says " at most once ". 
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3 years ago
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Monica [59]

Answer:

\theta = 82.2^\circ

Step-by-step explanation:

Let \  \angle BAC = \theta

Opposite = BC ,

Adjacent = AB = x = 3 ,

Hypotenuse = AC = y = 22

<em><u>Using trigonometric ratios.</u></em>

sin \theta = \frac{opposite}{hypotenuse }\\\\cos \theta = \frac{adjacent}{hypotenuse}\\\\tan \theta = \frac{opposite}{adjacent}

Since we have adjacent and hypotenuse we use cosine's  ratio

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           cos \theta = \frac{x}{y} = \frac{3}{22} \\\\\theta = cos^{-1} \frac{3}{22} = 82.16 = 82.2^\circ

6 0
3 years ago
Betty has $1,000 in her savings account. The interest rate is 2.5%. How much interest will Betty earn when her money has been in
V125BC [204]

Answer:

$1,075

Step-by-step explanation:

Use the formula I=PRT where I= interest, P=principle or starting amount, R=interest rate, T=time

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Add 75 to 1,000, 1,000+75=1,075

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2 years ago
Factor Completely: x2 - 81 <br> A.(x-9)(x+9)<br> B.(x+9)(x+9)<br> C.(x-9)(x-9)<br> D.(9-x)(9+x)
Hunter-Best [27]

Answer is A

The binomial can be factored using the difference of squares formula a2-b2 = (a+b) (a-b) where a=x and b=9

(X+9) x(x-9)

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Answer:

x = 10 units

Step-by-step explanation:

16 is to 40     as  x+2  is  to  3x

16/40 = (x+2) / 3x

48x = 40x + 80

8x = 80

x = 10

3 0
2 years ago
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