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2 years ago

Anyone can help me? Ive not done this..

Mathematics

1 answer:

kow [346]2 years ago

5 0

Answer:

∠CED = 48°

Step-by-step explanation:

By adding all angles together, they’ll eventually equal ∠AED. Hence, sum of all given angles = ∠AED

∠AEB + ∠BEC + ∠CED = ∠AED

29°+12°+x = 89°

Solve for x and we will get measure of ∠CED:

41°+x = 89°

x = 89°-41°

x = 48°

Therefore, the measure of ∠CED is 48°

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A jar has 10 red marbles, 6 purple marbles, and 4 turquoise marbles. If you pull a red marble, you win nothing. If you pull a pu

Klio2033 [76]

Answer:

The expected value = -1.4 Dollars

Step-by-step explanation:

The number of red marbles = 10

The number of red purple = 6

The number of red turquoise = 4

The total number of marbles in the jar = 10 + 6 + 4 = 20 marbles

The prize won for pulling a red marble = 0

The prize won for pulling a purple marble = $2

The prize won for pulling a turquoise marble = $5

The probability of pulling a red marble = 10/20 = 1/2

The probability of pulling a purple marble = 6/20 = 3/10

The probability of pulling a turquoise marble = 4/20 = 1/5

Expected value, EV, probability is the foreseen or bankable future value value for a current investment. The expected value is found by finding the product of each outcome and the probability of occurrence of the outcome and then adding the values of the products together

To find the expected value, EV sum the prizes won multiplied by the probability of winning that prize and then subtract the cost of playing the game.

Therefore;

EV = 1/2×0 + 3/10×2 + 1/5 × 5 -3 = -1.4

The expected value = $(-1.4).

8 0

4 years ago

The data set below shows the number of books checked out from a library during the first two weeks of the month: 99, 29, 30, 42,

Iteru [2.4K]

Answer:

D. There is one outlier, indicating an abnormally large number of books were rented out on that day.

Step-by-step explanation:

We have been given a data set that shows the number of books checked out from a library during the first two weeks of the month.

Our given data set is: 99, 29, 30, 42, 35, 36, 30, 35, 38, 43, 39, 40, 28, 31.

Let us arrange our given data points in ascending order.

28, 29, 30, 30, 31, 35, 35, 36, 38, 39, 40, 42, 43, 99.

We can see from our data set that it has one extreme large value outlier that is 99, which indicates that an abnormally large number of books were rented out on that day.

Therefore, option D is the correct choice.

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3 years ago

How many kilograms of onions would you have if you spent 30 pound and the onions cost 6 pound per 10 kg how many kg would you ha

Len [333]

30lbs of onions
1 onion=6lbs per 10 kg
30 * 6=180
180/10=80
80
I hope this is correct

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3 years ago

How much work is done when a hoist lifts a 200-kg rock to a height of 3 m?

Rufina [12.5K]

Answer:

<h2> 5880 joules</h2>

Step-by-step explanation:

Given data

mass of rock, m= 200 kg

height/distance = 3 m

Now we know that the expression for work done is

w= force* distance

and also we need to find the force exerted by mass of rock

F= mg

Substituting our data and solving for force we have (assuming g= 9.81 m/s^2)

Force= 200*9.81

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Now we can find the work done

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work done= 5880 joules

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4 years ago

What is square root of 21x?

andriy [413]

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3 years ago