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3 years ago

Please help, me find the area of Letter E.

Mathematics

1 answer:

Radda [10]3 years ago

7 0

Answer:

7.005 m^2.

Step-by-step explanation:

We can split this into one vertical rectangle 3.45 * 0.9 m^2

2 rectangles 2 * 0.75 = 1.5 m^2

1 rectangle 1.2 * 0.75 m^2

= 3.105 + 2 * 1.5 + 0.9

= 7.005 m^2.

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Express 12113 in base 10

dlinn [17]

Answer:

log 12113 in base 10

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3 years ago

Compare the numbers 5/g and 0.5. Use the symbols <, >, or =

Nady [450]

> . 5 is greater than .5. If 5 is just a 5 without the g representing a denominator.

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3 years ago

A quiz-show contestant is presented with two questions, question 1 and question 2, and she can choose which question to answer f

Mrrafil [7]

Answer:

The contestant should try and answer question 2 first to maximize the expected reward.

Step-by-step explanation:

Let the probability of getting question 1 right = P(A) = 0.60

Probability of not getting question 1 = P(A') = 1 - P(A) = 1 - 0.60 = 0.40

Let the probability of getting question 2 right be = P(B) = 0.80

Probability of not getting question 2 = P(B') = 1 - P(B) = 1 - 0.80 = 0.20

To obtain the better option using the expected value method.

E(X) = Σ xᵢpᵢ

where pᵢ = each probability.

xᵢ = cash reward for each probability.

There are two ways to go about this.

Approach 1

If the contestant attempts question 1 first.

The possible probabilities include

1) The contestant misses the question 1 and cannot answer question 2 = P(A') = 0.40; cash reward associated = $0

2) The contestant gets the question 1 and misses question 2 = P(A n B') = P(A) × P(B') = 0.6 × 0.2 = 0.12; cash reward associated with this probability = $200

3) The contestant gets the question 1 and gets the question 2 too = P(A n B) = P(A) × P(B) = 0.6 × 0.8 = 0.48; cash reward associated with this probability = $300

Expected reward for this approach

E(X) = (0.4×0) + (0.12×200) + (0.48×300) = $168

Approach 2

If the contestant attempts question 2 first.

The possible probabilities include

1) The contestant misses the question 2 and cannot answer question 1 = P(B') = 0.20; cash reward associated = $0

2) The contestant gets the question 2 and misses question 1 = P(A' n B) = P(A') × P(B) = 0.4 × 0.8 = 0.32; cash reward associated with this probability = $100

3) The contestant gets the question 2 and gets the question 1 too = P(A n B) = P(A) × P(B) = 0.6 × 0.8 = 0.48; cash reward associated with this probability = $300

Expected reward for this approach

E(X) = (0.2×0) + (0.32×100) + (0.48×300) = $176

Approach 2 is the better approach to follow as it has a higher expected reward.

The contestant should try and answer question 2 first to maximize the expected reward.

Hope this helps!!!

3 0

3 years ago

Use the following information to find the following lengths.

Alex

Step-by-step explanation:

AB = 3

DB = 3 + 6 = 9

CD = 6

hope this answer helps you dear...take care!

7 0

3 years ago

Read 2 more answers

A transformation named T maps triangle XYZ to triangle X'Y'Z'. The transformation is a(n) _____.

wel

Answer:

The transformation is called Translation.

Step-by-step explanation:

We have different types of transformation:

Translation: A translation or slide is an isometry in which all points of a figure move the same distance and in the same direction.

Reflection: A reflection is an isometry in which the preimage and the image have opposite orientations. In other words, the image appears backwards.

Rotation: A rotation is an isometry in which a figure has been rotated or turned around a point called center of rotation.

Dilation: A dilation could be an enlargement or a reduction.

In Geometry, "Translation" simply means Moving without rotating, resizing or anything else, just moving.

To Translate a shape: Every point of the shape must move;

the same distance

in the same direction.

So, in this question XYZ translate to $X^{'} Y^{'} Z^{'}$ since every point move in the same distance and same direction.

4 0

3 years ago

Read 2 more answers

Please help, me find the area of Letter E.​

Please help, me find the area of Letter E.