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mars1129 [50]
2 years ago
7

What is the angle measurement of angle K?

Mathematics
1 answer:
RUDIKE [14]2 years ago
8 0

Answer:

61°

Step-by-step explanation:

let the angle on a straight line with 112° be x

112°+x = 180° ( angles on a straight line)

x = 180°- 112°

x = 68°

calculating for k°

68°+ k +51° = 180° (sum of angles Ina triangle equal 180°)

119° +k = 180°

K = 180-119

k = 61°

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Consider the following portion of an electric circuit with three relays. Current will flow from point a to point b if there is a
Svetradugi [14.3K]

Answer:

0.9009

Step-by-step explanation:

Let X be the event that Current will flow

Let Y be the event that the first relay which is 1 is closed

Thus, we can say that every element of Y is in X, but X possesses more elements. Thus, Y ⊂ X.

Thus, we can say that;

P(X ∩ Y) = P(Y)

Thus, given that current flowed, the probability that relay 1 functioned will be expressed as;

P(Y | X) = (P(Y ∩ X))/P(X)

From earlier, we saw that P(X ∩ Y) = P(Y). Thus;

P(Y | X) = P(Y)/P(X)

From the question, P(Y) = 0.9

Since there are 3 relays, then we have;

P(X) = 1 - 0.1³ = 0.999

Thus;

P(Y | X) = 0.9/0.999

P(Y | X) = 0.9009

4 0
3 years ago
Pc Richard and son are selling a drone for 179.99 for 10% off and $20 off to the first 100 customers what’s the price
den301095 [7]

Answer:

The price for the first 100 customers is $142.00.

Step-by-step explanation:

Step 1: 10% of 179.99 =  17.99

Step 2: $179.99 - $17.99 = $162.00

Step 3: $162.00 - $20.00 = $142.00

3 0
3 years ago
Write a quadratic function f whose zeros are - 5 and 7.
weeeeeb [17]
Our two binomials are (X-5)(X-7)

If we FOIL those two terms [x*x = x2; x*-7 = -7x; x*-5 = -5x; -5*-7 = 35] and combine the like terms, we're left with one of many quadratic function
Answer
x2-12x+35
3 0
3 years ago
Find the measure of side a
matrenka [14]

Answer:

8.22899353m

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Step-by-step explanation:

14 * sin(36 degree) = 8.22899353

5 0
3 years ago
Math question can somebody please help me with this math problem
Elodia [21]
You need to add up all the sides of the thing thank you
5 0
3 years ago
Read 2 more answers
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