All categories

3 years ago

-x+2y=4 how do i solve this

Mathematics

2 answers:

e-lub [12.9K]3 years ago

8 0

Answer:

x-2y+4=0

Step-by-step explanation:

saw5 [17]3 years ago

7 0

Answer:

Step-by-step explanation:

You want to set it equal to zero!

-x+2y+4=0

*this would be the answer IF the answer is asking you to set it equal to zero. BUT for slope intercept form this is the steps:

-x+2y=4 (subtract x and move to the other side of the equal sign):

2y=4+x

Divide both sides by 2:

y=2+1/2x

ALWAYS PUT YOUR VALUE WITH X IN FRONT OF YOUR NUMBER

y=1/2x+2

You might be interested in

Suppose you are given either a fair dice or an unfair dice (6-sided). You have no basis for considering either dice more likely

hoa [83]

Answer: Our required probability is 0.83.

Step-by-step explanation:

Since we have given that

Number of dices = 2

Number of fair dice = 1

Probability of getting a fair dice P(E₁) = $\dfrac{1}{2}$

Number of unfair dice = 1

Probability of getting a unfair dice P(E₂) = $\dfrac{1}{2}$

Probability of getting a 3 for the fair dice P(A|E₁)= $\dfrac{1}{6}$

Probability of getting a 3 for the unfair dice P(A|E₂) = $\dfrac{1}{3}$

So, we need to find the probability that the die he rolled is fair given that the outcome is 3.

So, we will use "Bayes theorem":

$P(E_1|A)=\dfrac{P(E_1)P(A|E_1)}{P(E_1)P(A|E_1)+P(E_2)P(A|E_2)}\\\\(E_1|A)=\dfrac{0.5\times 0.16}{0.5\times 0.16+0.5\times 0.34}\\\\P(E_1|A)=0.83$

Hence, our required probability is 0.83.

8 0

3 years ago

To factor 8x² + bx + 3, a student correctly rewrites the trinomial as 8x^2 +px+qx+3. What is the value of pq?

lidiya [134]

It is because it is 2*8(8-8)

4 0

2 years ago

-3x-y=9

Lina20 [59]

Answer:

D: no solution

...because none of the answers work for both of the equations when you plug in the x and y values

4 0

2 years ago

HELP PLEASE 10 POINTS!!!!!!!!!!!

LiRa [457]

Answer:

$0.0000000642 = 6.42 \times {10}^{ - 8}$

I hope I helped you^_^

5 0

2 years ago

Read 2 more answers

Q.5(b) The population {(P) in millions} of a country is estimated by the function, P=125e0.035t, t = time measured in years sinc

nekit [7.7K]

Answer:

Hello,

Step-by-step explanation:

Q.5(b) The population {(P) in millions} of a country is estimated by the function, P=125e0.035t, t = time measured in years since 1990. (a) what is the population expected to equal in year 2000 (b) determine the expression for the instantaneous rate of change in the population (c) what is the instantaneous rate of change in the population expected to equal in year 2000.

$P(t)=125*e^{0.035*t}\\a)\\P(2000)=125*e^{0.035*(2000-1990)}=177.38...\\\\b)\\P'(t)=125*0.035*e^{0.035*t}\\\\c)\\\\P'(2000)=125*0.035*e^{0.035*(2000-1990)}=6.2084...$

5 0

2 years ago