1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Misha Larkins [42]
3 years ago
11

Pls help 50 points best + correct answer gets brainliest crown

Mathematics
2 answers:
fomenos3 years ago
8 0

<em>*Remember that A = angle and S = side.</em>

So remember that <u>similar figures have congruent angles and proportional sides.</u> Looking at triangles ABC and DEF, they both share 85° and 30° angles. <u>With this, the two triangles are similar by AA, or the first option.</u>

MAVERICK [17]3 years ago
6 0

Similar AA as the 2 given angles for each triangle is equal to each other.

Similar SAS as the angles given and ratio between the 2 triangles are equal.

You might be interested in
What is the height of the trapezoid?
Nataly [62]
I am pretty sure the height is 4, but sorry if i am wrong
5 0
3 years ago
Read 2 more answers
Denise has it 28 yards of fabric how many ties can can be made from the fabric is each type used is 3/4 yard of fabric
miss Akunina [59]
You have to divide , first you have to turn 28 into a fraction , 28 over one , then you have to flip 3/4 into 4/3 then multiply it



4 0
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
2 years ago
Mr. sanchez recorded the number of visitors to a county park for 20 days and the average temperature for these 20 days. he recor
maria [59]
A, The temperature increase had increased the number of visitors.
4 0
3 years ago
can someone help me with this i'm really confused heh... i'll give you a 5 star rating and brainliest answer!​
lutik1710 [3]
1. m= 4/9
2. m=4
3. m=-11
4. m=1/2
7 0
3 years ago
Other questions:
  • Water is leaking out of a container. At 2:30 p.m., there are 31 pints of water in the container. At 4 p.m., there are 22 pints o
    12·1 answer
  • How to find a slope of a line segment?
    9·1 answer
  • X(21)+x(4)=300 I need solving
    15·1 answer
  • What are the values of x and y in this figure?
    9·1 answer
  • There are 33 students in the cafeteria, 15 girls and 18 boys. What is the ratio of girls to boys in the cafeteria?
    14·2 answers
  • How many times is 42 going to 5647
    12·2 answers
  • While attending a school carnival, you estimate the ratio of children to adults as If there are 180 people at the carnival, abou
    7·1 answer
  • Find the value of x that will make A||B.<br> A<br> В<br> 4x<br> 2x<br> x<br> [?]
    9·1 answer
  • The ordinate of every point on the x-axis is zero. True or false?
    8·1 answer
  • You start at (0, 8). You move down 7 units and right 8 units. Where do you end?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!