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Effectus [21]
3 years ago
15

Triangle L J K is shown. Angle J L K is a right angle. The length of the hypotenuse is 15 inches and the length of the side adja

cent to the right angle is 10 inches. The angle between the 2 sides is x.
Which equation can be used to find the measure of angle LJK?
Mathematics
2 answers:
defon3 years ago
8 0

Answer:

The answer is C on Edge 2020

Step-by-step explanation:

aleksklad [387]3 years ago
5 0

Answer:

The answer is C: cos(x)= 10/15.

Step-by-step explanation:

ed2020

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HELP PLZZ I WILL REWARD IF ANSWERS RIGHT
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3 years ago
Jerry has four jackets in his closet. Without looking, he reached into his closet, pulled out a jacket, and then put it back in
padilas [110]

Answer:

1%

Step-by-step explanation:

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4 0
2 years ago
Ritchie got a job at the movie theater. On the first day, he sold 5 adult tickets and 7 children tickets for a total of 104. On
g100num [7]

Answer:

  • adult: $11
  • children: $7

Step-by-step explanation:

The sales on the two days can be expressed using equations that can be solved for ticket prices.

<h3>Setup</h3>

Let x and y represent the prices of adult and children's tickets, respectively. Then the sales revenue for the two days can be expressed in the equations ...

  • 5x +7y = 104
  • 7x +3y = 98

<h3>Solution</h3>

One of the easiest solution methods is to use a graphing calculator. The first attachment shows the prices are $11 for an adult ticket; $7 for children tickets.

Using the matrix functions of a calculator, the augmented matrix of the equation coefficients can be reduced to row-echelon form. This, too, shows the solution to be (adult price, children price) = ($11, $7). See the second attachment. (The solution is the right-most column of the reduced matrix.)

Yet another solution method can use the coefficients from the equations written in general form:

  • 5x +7y -104 = 0
  • 7x +3y -98 = 0

In this form, we define three products of "cross multiplication":

  Δ1 = (5)(3) -(7)(7) = -34

  Δ2 = (7)(-98) -(3)(-104) = -374

  Δ3 = (-104)(7) -(-98)(5) = -238

Using those, we find the variable values to be ...

  x = Δ2/Δ1 = -374/-34 = 11

  y = Δ3/Δ1 = -238/-34 = 7

(adult price, children price) = ($11, $7)

__

You can read more about the cross-multiplication method here:

brainly.com/question/26397343

6 0
1 year ago
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Which of the following describes the end behavior of the
slava [35]
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2 years ago
Given: ABC , BD is an<br> altitude to side AC, &amp; D is a midpoint<br> Prove: AB BC
Over [174]

Answer:

steps below

Step-by-step explanation:

BD⊥AC    ∠ADB = ∠CDB = 90°

D is mid-point: AD = CD

BD = BD

ΔADB ≅ ΔCDB

AB = BC

5 0
2 years ago
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