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jolli1 [7]
3 years ago
6

What is the value of b? - 7.5 ( x - 3 ) = 3.75

Mathematics
2 answers:
Anvisha [2.4K]3 years ago
7 0
The answer is 22.5 tell me if you get correct
Dominik [7]3 years ago
4 0

Answer: 22.5

Step-by-step explanation: The y-intercept or b would be 22.5 because In point slope form 3.75 is the y, -7.5x is the mx and since -7.5x-3=22.5, 22.5 is the b.

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A university knows from historical data that 25% of students in an introductory statistics class withdraw before completing the
Vikki [24]

Answer:

13.4%

Step-by-step explanation:

Use binomial probability:

P = nCr p^r q^(n-r)

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1-p).

Here, n = 16, r = 2, p = 0.25, and q = 0.75.

P = ₁₆C₂ (0.25)² (0.75)¹⁶⁻²

P = 120 (0.25)² (0.75)¹⁴

P = 0.134

There is a 13.4% probability that exactly 2 students will withdraw.

8 0
3 years ago
Boating: A paddleboat moves at a rate of 12 mph in still water. If the rover’s current moves at a rate of 3 mph, how long will i
Lostsunrise [7]

The time taken by the boat to travel 32 miles downstream is 2.1 hours and for upstream 3.56 hours.

<h3>What is speed?</h3>

Speed is defined as the ratio of the time distance traveled by the body to the time taken by the body to cover the distance.

Given that:-

  • A paddleboat moves at a rate of 12 mph in still water. If the rover’s current moves at a rate of 3 mph.
  • how long will it take the boat to travel 36 miles downstream and 36 miles upstream?

The time taken by the boat upstream will be calculated as:-

( B + W ) Td = D

( 12 + 3 ) Td = 32

( 15 ) Td = 32

Td = 32 / 15 = 2.1 hours

The time taken by the boat downstream will be calculated as:-

( B - W ) Tu = D

( 12 - 3 ) Tu = 32

9 Tu = 32

Tu = 32 / 9 = 3.56 hours.

Therefore the time taken by the boat to travel 32 miles downstream is 2.1 hours and for upstream 3.56 hours.

To know more about Speed follow

brainly.com/question/6504879

#SPJ1

4 0
2 years ago
Help with these 2 Please
tensa zangetsu [6.8K]

The employees that drive to work is 380

The total number of employees that drive to work is 660

<h3>How many employees drive to work?</h3>

A fraction is a non integer that is made up of a numerator and a denominator. A fraction is used to express the ratio or the relationship between two or more quantities. An example of a fraction is 1/2.

The number of employees that drive to work can be determined by multiplying the fraction of the employees that drive to work by the total number of employees.

Employees that drive to work = 2/3 X 570 = 380

In order to determine the employees that drive to work, take the following steps:

Determine the total number of employees : 3 x 330 = 990

The total number of employees that drive to work: 2/3 x 990 = = 660

To learn more about multiplication of fractions, please check: brainly.com/question/1114498

#SPJ1

8 0
8 months ago
What is 1.147 , 1.15 , 1.098 , 0.884 from greatest to least
SOVA2 [1]
1.15,1.147,1.098,.884
5 0
3 years ago
Read 2 more answers
Which of the following is the smallest set? Becareful of spelling. Real numbers, Rational Numbers, Irrational numbers or Natural
sattari [20]
Real because it’s 12345678910
6 0
3 years ago
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