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3 years ago

What is the answer?!

Mathematics

2 answers:

dalvyx [7]3 years ago

6 0

Answer:y = 15

Step-by-step explanation:

Concept:

Here, we need to know the idea of similar triangles.

Two triangles are similar if they have the same ratio of corresponding sides and equal pairs of corresponding angles.

If you are still confused, please refer to the attachment below for a graphical explanation.

Solve:

Set up the proportion between the sides

Small / Big = Small / big

10 / 22 = y / 33

Cross-multiply to simplify the proportion

22 · y = 33 × 10

22y = 330

Divide 22 on both sides

22y / 22 = 330 / 22

y = 15

Hope this helps!! :)

Please let me know if you have any quesitons

larisa [96]3 years ago

3 0

Answer:

Answer:y = 15

Step-by-step explanation:

Concept:

Here, we need to know the idea of similar triangles.

Two triangles are similar if they have the same ratio of corresponding sides and equal pairs of corresponding angles.

If you are still confused, please refer to the attachment below for a graphical explanation.

Solve:

Set up the proportion between the sides

Small / Big = Small / big

10 / 22 = y / 33

Cross-multiply to simplify the proportion

22 · y = 33 × 10

22y = 330

Divide 22 on both sides

22y / 22 = 330 / 22

y = 15

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In a study by Peter D. Hart Research Associates for the Nasdaq Stock Market, it was

GrogVix [38]

Answer:

a) 0.1108

(b) 0.0173

Step-by-step explanation:

We are given that 20% of all stock investors are retired people. A random sample of 25 stock investors is taken.

Firstly, the binomial probability is given by;

where, n = number of trails(samples) taken = 25

r = number of successes

p = probability of success and success in our question is % of

retired people i.e. 20%.

Let X = Number of people retired

(a) Probability that exactly seven are retired people = P(X = 7)

P(X = 7) =

= = 0.1108

(b) Probability that 10 or more are retired people = P(X >= 10)

P(X >= 10) = 1 - P(X <= 9)

Now, using binomial probability table, we find that P(X <= 9) is 0.98266 at n = 25, p = 0.2 and x= 9

So, P(X >= 10) = 1 - 0.98266 = 0.0173.

7 0

3 years ago

Your friend has locked themselves out of the house, and they need your help to get back in. They have a 15 foot long ladder, and

ExtremeBDS [4]

Answer:

w=9 feet APEX

Step-by-step explanation:

8 0

3 years ago

What’s the equation of the line that passes through the point (5,1) and has a slope of 1

Dmitriy789 [7]

Answer:

y = x + 4

Step-by-step explanation:

y = mx + b

y = 1x + b

5 = 1 + b

b = 4

y = x + 4

8 0

3 years ago

What is the slope of a line perpendicular to the line whose equation is 3x-12y=2163x−12y=216.

Keith_Richards [23]

Answer:

Deleted account

Step-by-step explanation:

Here 3x-12y-216=0

Reducing into slope intercept form

-12y= -3x + 216

12y = 3x - 216

Which is in the form of, y = mx + c

Slope (m) = 3

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

Using the transformation T: (x,y) —> (x+2, y+1), find the distance CB

pshichka [43]

Answer:

The distance between CB is $\sqrt[]{10}$

Step-by-step explanation:

Recall that the transformation T consists of a translation of 2 units to the right and 1 unit up. Then, T preserves distances(which means that it keeps distances between points the same as before applying the transformation). Then, distance CB is the sames as distance C'B'. We will use the distance formula: if we have points (x,y), (z,w) then the distance between them is given by

$\sqrt[]{(x-z)^2+(y-w)^2}$

In our case we have that C'=(0,3), B'=(3,4). Then, the distance between them is

$\sqrt[]{(3-0)^2+(4-3)^2}= \sqrt[]{10}$

5 0

3 years ago