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blagie [28]
3 years ago
10

Scholarship A is worth $3000 and costs $10 to apply. Scholarship B is worth $4000 and costs $25 to apply. You have a 5% chance o

f receiving Scholarship A and a 1% chance of receiving Scholarship B.
(a) What is your expected value for Scholarship A?

$
Mathematics
1 answer:
fomenos3 years ago
3 0

Answer:

$140

Step-by-step explanation:

Given:

P(getting scholarship A)=0.05

P(getting scholarship B)=0.01

E(value of scholarship A)=0.05 ( 3000-10)+ 0.95(-10)

                                        =$140

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Help how do and is help?
Dimas [21]

Answer:

x = 12

Step-by-step explanation:

The total of all the angle is 180 degrees so just divide 180 by the total number of x's which is 5+4+3+2+1 = 15

180/15 = 12

If you wanted to know how much each angle is just plug in 12 for x.

So first angle is just X so it is 12 degrees.

Second angle is 2X so 2x12 = 24 degrees.

and so on for all the angles.

6 0
3 years ago
ILL GIVE BRAINLIEST TO WHOEVER HELPS ME PLEASE I HAVE NO TIME BC ITS LITERALLY DUE TMRW
Effectus [21]

9514 1404 393

Explanation:

<u>Part A</u>.

1. You have provided an estimate of 600 minutes per month.

__

2. The cheapest plan is likely to be Plan 6 (Public Mobile), as it has no per-minute charge.

__

<u>Part B</u>.

1. Table 2.

See the first attachment for Table 2. For the chosen plan, there is no per-minute charge, so the monthly charge is the same for all numbers of minutes.

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2. Rate of Change and Slope (m)

a) Adding a minute adds $0 to the cost

b) The rate of change (m) is 0/1 = 0 (dollars per minute)

__

3. Initial value (b)

a) The plan costs $24.00 when no minutes are used.

b) The initial value (b) is 24.

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4. Equation of the line

a) Filling the found values of m and b into the equation of the line, we have ...

  y = mx + b

  y = 0x + 24

  y = 24 . . . . . . simplified

__

<u>Part C</u>.

Table 3 can be found in the second attachment.

The b in each case is the value from the <em>Monthly Cost</em> column of Table 1.

The m in each case is the value from the <em>Cost per minute</em> column of Table 1.

The equation is found by copying the values of m and b into y = mx + b.

The number in the last column is found by multiplying the minutes (x) by m, then adding b. <em>For example</em>, your cost for Plan 5 (BELL) is ...

  y = 0.10x + 10

  y = (0.10)(600) +10 = 60 +10 = 70

5 0
3 years ago
Find the equation of the ellipse with the following properties. The ellipse with foci at (0, 6) and (0, -6); y-intercepts (0, 8)
sesenic [268]
Hi, thank you for posting your question here at Brainly.

The general equation of a horizontal ellipse is

(x-h)2/a2 + (y-k)2/b2 = 1, at center (h,k) while a = semi-major axis, b = semi-minor axis. These are related through the distance of the focus from the center,c. a2 = b2 + c2.

If you draw the points on a coordinate plane, the center of the ellipse is at (0,0), so h and k equals 0. Then, the minor axis (2b) spans from 8 to -8 of the y-axis. This is equal to 16 units. Hence,

2b = 16
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The distance between the two foci is 2c. Thus,

2c = 12
c = 6
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Then, a2 = 64 + 36 = 100. Substituting to the general equation:

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8 0
3 years ago
What is the foil method of (X+3)(x-4)
solong [7]

Answer:

(x-1) x-12

Step-by-step explanation:

Step 1 :  Multiply first term of the first bracket to the first term of the other bracket

Step 2 :  Then multiply the first term of the first bracket to the last term of the second bracket.

Step 3 :  Now come to the second term of first bracket, multiply second term with first term of second bracket.

Step 4 :  Finally multiply last term of first bracket with the last term of the second bracket.

Step 5 :  Adding all the answers got from the steps, we get the final answer.

3 0
3 years ago
Reduce to Standard form : (a) -21/91 (b) 32/(-256)​
sweet [91]

Answer:

a) -3/13

b) -1/8

Step-by-step explanation:

a)  - (21 / 7) / (91 / 7) = 3/13

b) (32 / 32 ) / - (256 / 32) = -1/8​

5 0
3 years ago
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