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lidiya [134]
3 years ago
13

Find cos(a) in the triangle.

Mathematics
1 answer:
iVinArrow [24]3 years ago
8 0
29c
Cos(a) of an angle
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Which table of ordered pairs represents a proportional relationship?
dedylja [7]

Answer:

A 2-column table with 3 rows. Column 1 is labeled x with entries 14, 28, 42. Column 2 is labeled y with entries 2, 4, 6.

Step-by-step explanation:

Examining the response options:

A 2- compartment chart with 3 rows. Column 1 is designated x with records 1, 5, 6. compartment 2 is designated y with records 5, 20, 30.

No, as y = 25 not 20 and x = 5 .

A 2- compartment chart with 3 rows. Column 1 is identified x with approaches 48, 32, 16. compartment 2 is designated y with listings 4, 2, 1.

No, y =64 not 48 and x= 4.

A 2- compartment chart with 3 lines. compartment 1 is designated x with records 0, 1, 3. compartment 2 is designated y with records 90, 70, 25.

No, y= 25+3*45= 160 not 90 and x = 3.

A 2- compartment chart with 3 lines. compartment 1 is designated x with records 42, 28, 14. compartment 2 is designated y with records 2, 4, 6.

Yes, as 2*7 = 14, 4*7= 28, 6*7= 42.

5 0
3 years ago
Read 2 more answers
2x^2+13x=0 quadratic formula
krek1111 [17]
The answer is x = 0, -13/2
7 0
3 years ago
Evaluate + for x = 6, y = -4, and z = -2.
Aleksandr-060686 [28]
6 + -4 = -2= 0.......................
6 0
3 years ago
Suppose that you and a friend are playing cards and you decide to make a friendly wager. The bet is that you will draw two cards
Serjik [45]

Answer:

Step 1: Expected value = -2.53 dollars

He makes - 1,803.89 dollars over 713 of these bets.

Step 2:

Step-by-step explanation:

Expected value of bet = (Winning probability * winning amount) - (losing probability * losing amount)

Winning probability = (13/52) * (12/51) = 0.0588

Losing probability = 1 - 0.0588 = 0.9412

Expected value = (37 * 0.0588) - (5 * 0.9412)

Expected value = -2.53 dollars

If this same bet of expected value -2.53 dollars is made 713 times, our expected losses are:

2.53 * 713 = 1,803.89 dollars

Thus he makes - 1,803.89 dollars over 713 of these bets.

5 0
4 years ago
the length of a rectangle is equal to triple the width.if the perimeter of the rectangle is 86cm,determine the length and the wi
Anuta_ua [19.1K]

Answer:

length of rectangle = 32.25 cm

  Width of rectangle = 10.75 cm

Step-by-step explanation:

Let the length of rectangle be x.

And width of rectangle be y.

According to the problem,

x = 3y    {Since the length of a rectangle is equal to triple the width}

Also,

Perimeter of rectangle = 86

or 2 (x + y) = 86

Plug x =3y in the above equation

We get,  2(3y + y) = 86

    2 * 4y = 86

     4y = 43

      y = 43/4 = 10.75

So, length of rectangle = 3 * 10.75 = 32.25cm

  Width of rectangle = 10.75cm

4 0
3 years ago
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