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2 years ago

6. Ava had a rough day on the stock market. Her stocks dropped in value to

Mathematics

2 answers:

Pani-rosa [81]2 years ago

6 0

Answer:

420,000

Step-by-step explanation:

If 140,000 is $\frac{1}{3}$ of what she had yesterday, then you just multiply the number by 3 because $\frac{1}{3}$ times 3 is $\frac{3}{3}$ , which is 1.

NemiM [27]2 years ago

5 0

Her stock were worth 420,000 yesterday

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A car insurance company has high-risk, medium-risk, and low-risk clients, who have, respectively, probabilities .04, .02, and .0

Paha777 [63]

Answer:

(a) 0.983

(b) 0.353 or 35.3%

Step-by-step explanation:

a) The probability of a random client does not file a claim is equal to the sum of:

1) the probability of a client being high risk and does not file a claim = P(hr)*(1-P(c_hr))

2) the probability of a client being medium risk and does not file a claim = P(mr)*(1-P(c_mr))

and

3) the probability of a client being low risk and does not file a claim = P(lr)*(1-P(c_lr))

P(not claim) = P(hr)*(1-P(c_hr))+P(mr)*(1-P(c_mr))+P(lr)*(1-P(c_lr))

P(not claim) = 0.15*(1-0.04)+0.25*(1-0.02)+0.6*(1-0.01)

P(not claim) = 0.15*0.96+0.25*0.98+0.6*0.99 = 0.983

(b) To know the proportion of claims that come from high risk clients we need to know the total expected claims in every category:

Claims expected by high risk clients = P(c_hr)*P(hr) = 0.04*0.15 = 0.006 claims/client

Claims expected by medium risk clients = P(c_mr)*P(mr) = 0.02*0.25 = 0.005 claims/client

Claims expected by low risk clients = P(c_lr)*P(lr) = 0.01*0.60 = 0.006 claims/client

The proportion of claims done by high risk clients is

Claims by HR clients / Total claims expected = 0.006 / (0.006+0.005+0.006) = 0.006 / 0.017 = 0.3529 or 35,3%

1) High risk: 0.15*(1-0.04) = 0.144

2) Medium risk: 0.25*(1-0.02) = 0.245

3) Low risk: 0.6*(1-0.01) = 0.594

The probability that a random client who didn't file a claim is low- risk can be calculated as:

Probability of being low risk and don't file a claim / Probability of not filing a claim

P(LR&not claim)/P(not claim) = 0.594 / (0.144+0.245+0.594)

P(LR&not claim)/P(not claim) = 0.594 / 0.983 = 0.604 or 60.4%

6 0

3 years ago

Problem

Nitella [24]

Answer:maybe 29

Step-by-step explanation:

8 0

3 years ago

Find the gradient of the line segment between the points (0,6) and (2,16).

maks197457 [2]

Answer:

Step-by-step explanation:

The gradient is the ratio of the change in y to the change in x:

m = ∆y/∆x = (16 -6)/(2 -0) = 10/2 = 5

The gradient of the line segment is 5.

6 0

3 years ago

1. What is the area of this polygon?

siniylev [52]

Answer:

Part 1) The area of the polygon is $42\ units^{2}$

Part 2) The area of the polygon is $43.5\ units^{2}$

Step-by-step explanation:

Part 1) we know that

The area of the figure is equal to the area of rectangle GPST plus the area of triangle PES

Observing the graph

Find the area of rectangle

$A=bh=5*7=35\ units^{2}$

Find the area of triangle

$A=(1/2)bh=(1/2)*7*2=7\ units^{2}$

The area of the figure is equal to

$35\ units^{2}+7\ units^{2}=42\ units^{2}$

see the attached figure N 1 to better understand the problem

Part 2) we know that

The area of the figure is equal to the area of two triangles plus the area of a trapezoid

Observing the graph

Find the area of triangle 1

$A=(1/2)bh=(1/2)*3*2=3\ units^{2}$

Find the area of triangle 2

$A=(1/2)bh=(1/2)*5*1=2.5\ units^{2}$

Find the area of trapezoid

$A=(1/2)(b1+b2)h=(1/2)*(11+8)*4=38\ units^{2}$

The area of the figure is equal to

$3\ units^{2}+2.5\ units^{2}+38\ units^{2}=43.5\ units^{2}$

see the attached figure N 2 to better understand the problem

3 0

3 years ago

I need help finding answer if you help me i will give your answer a 5 starr

faust18 [17]

Answer:It is the second option

Step-by-step explanation:

5 0

2 years ago