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3 years ago

Y= -3x+5 please solve

Mathematics

2 answers:

GarryVolchara [31]3 years ago

8 0

The answer is x = - y-5/3

I hope this helps. :)

pychu [463]3 years ago

6 0

X can be from -1.6 to -1.7 or x can be from -3.3 to 3.3

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1. SPOTLIGHTS Ship A has coordinates (–1, –2) and Ship B has coordinates (–4, 1). Both ships have their spotlights fixated on th

Alexeev081 [22]

Answer:

( 5 , 10 )

Step-by-step explanation:

Solution:-

- There are two ships, A and B, currently located by their respective coordinates in the cartesian coordinate system:

Position of ship A: ( - 1 , -2 )

Position of ship B: ( -4 , 1 )

- Both ships try to locate a lifeboat. The spotlights used by each ship are modelled as straight line functions of cartesian coordinate originating from their respective ships.

- Spot lights for each ship were able to locate the same lifeboat. The respective spotlights are modelled by the following functions:

Spotlight Ship A: y = 2x

Spotlight Ship B: y = x + 5

- To locate the position of the lifeboat with respect to the origin ( 0 , 0 ) we will use the spotlight model functions and equate them. This is because the spotlights must converge or meet at the position of lifeboat provided the lifeboat is found by both ships.

- Therefore,

Spotlight A = Spotlight B

y = 2x = x + 5

2x = x + 5

x = 5 , y = 10

Answer: The two spotlight meet at the coordinates ( 5 , 10 ). This is also the position of the lifeboat located by both the ships.

7 0

3 years ago

What is the simplest form of ratio 11:16

vitfil [10]

Answer:

Actually 11:16 is the answer

Step-by-step explanation:

we have to divide both terms by 1. because there is no other number that can go into 11

11 ÷ 1 = 11

16 ÷ 1 = 16

Since GCF = 1 we cannot reduce the ratio any further so:

11 : 16 = 11 : 16

3 0

3 years ago

Please help me fill this in

Rom4ik [11]

Answer:

380.13m squared

you take half of the diameter for the radius and you do 11 squared times pie

7 0

3 years ago

A construction company is considering submitting bids for contracts of three different projects. The company estimates that it h

julsineya [31]

Answer:

a. $P(x)=\frac{n!}{x!(n-x)!}*p^{x}*(1-p)^{n-x}\\$

b. $E(x) = 0.3$

c. $S(x)=0.5196$

d. $E=5,000$

Step-by-step explanation:

The probability that the company won x bids follows a binomial distribution because we have n identical and independent experiments with a probability p of success and (1-p) of fail.

So, the PMF of X is equal to:

$P(x)=\frac{n!}{x!(n-x)!}*p^{x}*(1-p)^{n-x}\\$

Where p is 0.1 and it is the chance of winning. Additionally, n is 3 and it is the number of bids. So the PMF of X is:

$P(x)=\frac{3!}{x!(3-x)!}*0.1^{x}*(1-0.1)^{n-x}\\$

For binomial distribution:

$E(x)=np\\S(x)=\sqrt{np(1-p)}$

Therefore, the company can expect to win 0.3 bids and it is calculated as:

$E(x) = np = 3*0.1 = 0.3$

Additionally, the standard deviation of the number of bids won is:

$S(x)=\sqrt{np(1-p)}=\sqrt{3(0.1)(1-0.1)}=0.5196$

Finally, the probability to won 1, 2 or 3 bids is equal to:

$P(1)=\frac{3!}{1!(3-1)!}*0.1^{1}*(1-0.1)^{3-1}=0.243\\P(2)=\frac{3!}{2!(3-2)!}*0.1^{2}*(1-0.1)^{3-2}=0.027\\P(3)=\frac{3!}{3!(3-3)!}*0.1^{3}*(1-0.1)^{3-3}=0.001$

So, the expected profit for the company is equal to:

$E=-10,000+50,000(0.243)+100,000(0.027)+150,000(0.001)\\E=5,000$

Because there is a probability of 0.243 to win one bid and it will produce 50,000 of income, there is a probability of 0.027 to win 2 bids and it will produce 100,000 of income and there is a probability of 0.001 to win 3 bids and it will produce 150,000 of income.

5 0

3 years ago

DUE IN 27 minutes PLEASE HELP EASYY

trapecia [35]

Answer:

6 + 0 = 0 + 6 = 6

12 X (3 X 9)

2 + 6x

3 + 7 + 8 = 7 + __ + 3

27 - 108

-15 - 5m

(6 + 5) + 1

8x + 28

26 X 1 = 1 X 26 = 26

24 + 4s

Step-by-step explanation:

i hope this helps :))

7 0

3 years ago