In △PKQ, PK = KQ = 12, m∠P = 35º. Find PQ.

Answers

Answer 1
Answer:

The length of PQ is 19.66 units

Step-by-step explanation:

The given is:

1. PK = KQ = 12

2. m∠P = 35º

We need to find the length pf PQ

∵ PK = KQ

∴ m∠P = m∠Q

∵ m∠P = 35°

∴ m∠Q = 35°

The sum of measures of the angles of a triangle is 180°

∴ m∠P + m∠Q + m∠K = 180°

∴ 35 + 35 + m∠K = 180

∴ 70 + m∠K = 180

- Subtract 70 from both sides

∴ m∠K = 110°

Let us use cosine rule to find the length of PQ

∵ PQ = \sqrt{(KP)^(2)+(KQ)^(2)-2(KP)(KQ)cos(K)}

∵ PK = 12 , KQ = 12 , m∠K = 110°

- Substitute these values in the rule

∴ PQ = \sqrt{(12)^(2)+(12)^(2)-2(12)(12)cos(110)}

∴ PQ = 19.66

The length of PQ is 19.66 units

Learn more:

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three rock climbers started a climb with each person carrying 7.8 kilograms of climbing equipment. A fourth climber with no equipment joined the group The group divided the total weight of climbing equipment equally among the four climbers

Answers

Answer:

Each carried 1.95 kg weight

Step-by-step explanation:

Given :Three rock climbers started a climb with each person carrying 7.8 kilograms of climbing equipment.

A fourth climber with no equipment joined the group The group divided the total weight of climbing equipment equally among the four climbers

To Find : How much did each carry ?

Solution :

Each person out of three is carrying weight = 7.8 kg

So, Total weight carried by 3 climbers = 7.8 * 3 =23.4

Now A fourth climber with no equipment joined the group

Total weight is divided among 4

So, weight carried by each climber = (7.8)/(4)=1.95

Hence each carried 1.95 kg weight

The correct answer is:

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Dividing this equally among the 4 climbers, we have 23.4/4 = 5.85 kg each.

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Answers

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Answers

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On the first spinner, you have 5 equal pie pieces with A - E and nothing repeating so your chance of landing on any one of the pieces is 1/5.

The second spinner has 4 possibilities with no repeats so the chances of landing on any one of the pieces is 1/4.

The chances of spinning specifically c and 2 together would be

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Find the point B on AC such that the ratio of AB to BC is 2:3

Answers

Answer:

B(4, - 3 )

Step-by-step explanation:

We have A(2, - 7) and C(7, 3 )

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x_(B) = (3(2)+2(7))/(2+3) = (6+14)/(5) = (20)/(5) = 4

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Hence B(4, - 3 )

Answer:

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Step-by-step explanation:

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If there is 1000$ in the lockbox what year will it be worth 64,000$ at 24% interest?

Answers

Hey there!

First, set up an exponential equation that represents the rate at which your original amount, 1000, gains interest:

y = 1000(1.24)^x

Y represents the value after X years. 1.24 represents the rate at which the money gains interest, 1 + 0.24 (your 24% interest rate in decimal form). 1000 is your original amount.

Now, set this equation equal to 64000, graph y = 64000 and y = 1000(1.24)^x on a graphing calculator, and see where the two equations intersect in order to solve for x.

They intersect when x is about 19.334, as seen in the graph below (it is very zoomed in so that you can see where the two functions intersect). Therefore, it will be about 19 years after the year in which you deposited the 1000 dollars before the money is worth 64000 dollars.