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ollegr [7]
3 years ago
9

In order to solve the system of linear equations, the coefficients of one of the variables must be the same number but opposite

signs. Choose a variable to eliminate by multiplication and /or addition. In complete sentences,tell which variable you would choose to eliminate first, and explain why you chose that variable. In detail, explain the steps you took in order to eliminate the first variable and solve for the second variable.
2x+3y=6
5x+2y=4
Complete your work in the space provided or upload a file that can display math symbols if your work requires it
Mathematics
1 answer:
Mashutka [201]3 years ago
8 0

Answer:

Step-by-step explanation:

because both equations do not have matching numbers for the x or y variable, and both equations are positive you are going to have to multiply each equation by a number  so that there will be at least one variable with the same number but with opposite signs.

it does not matter which variable you choose.

lets use y because 2 and 3 are smaller then 2 and 5.

so lets multiply the first equation by 2 in order to get y equal to 6.

2(2x)+2(3y)=(2)6

(do not forget to multiply what the equation is equal to also)

4x+6y=12

now for the second equation we need y to equal negative 6

-3(5x)+-3(2y)=-3(4)

-15x-6y=-12

now lets put the 2 new equations next to each other and see what we can cancel out

4x+6y=12

-15x-6y=-12

-11x=0

x=0

now plug 0 in for x and solve for y (it does not matter which of the 4 equations you choose to solve.

2(0)+3y=6

3y=6

y=2

so your answer is x=0, y=2

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See the attachments below!!!
zavuch27 [327]

Answer:

1) x=0.465

2) option A.

Step-by-step explanation:

1) The given equation is:

{3}^{x + 2}  = 15We rewrite this as logarithm to get:

x + 2 =  log_{3}(15)

The change of base formula is:

log_{b}(y)  =  \frac{ log(y) }{ log(b) }

We apply the change of base formula on the RHS to get:

x + 2 =  \frac{ log(15) }{ log(3) }

x + 2 =  \frac{1.176}{0.477}

x + 2 = 2.465

Group similar terms:

x = 2.465 - 2.000 = 0.465

2)

From the graph, the logarithmic function approaches negative infinity as x approaches -6.

Therefore the vertical asymptote is x=-6

The graph touches the x-axis at x=-5, therefore the x-intercept is x=-5.

The correct answer is A.

6 0
4 years ago
Use the change of Base formula to evaluate log5 92 . then convert. Log5 92 to a logarithm in base 3. Round to the nearest thousa
vovikov84 [41]
Change of base is
log_a(b)= \frac{log_c(b)}{log_c(a)}
change base to 3
log_5(92)= \frac{log_3(92)}{log_3(5)}
why would you want base 3? base 10 is on most calculators
anyway, the value would be 2.809555
4 0
3 years ago
Read 2 more answers
Pls help I need a good grade<br><br><br> Show your work for both of the questions only do 8 and 9
o-na [289]

Answer:

CaN't SeE ThE LeTtErS...

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Suppose the number of hits a webpage receives follows a Poisson distribution. The average number of hits per minute is 2.4. What
REY [17]

Answer:

The probability that the page will get at least one hit during any given minute is 0.9093.

Step-by-step explanation:

Let <em>X</em> = number of hits a web page receives per minute.

The random variable <em>X</em> follows a Poisson distribution with parameter,

<em>λ</em> = 2.4.

The probability function of a Poisson distribution is:

P(X=x)=\frac{e^{-\lambda}\lambda^{x}}{x!};\ x=0,1,2,...

Compute the probability that the page will get at least one hit during any given minute as follows:

P (X ≥ 1) = 1 - P (X < 1)

             = 1 - P (X = 0)

             =1-\frac{e^{-2.4}(2.4)^{0}}{0!}\\=1-\frac{0.09072\times1}{1} \\=1-0.09072\\=0.90928\\\approx0.9093

Thus, the probability that the page will get at least one hit during any given minute is 0.9093.

6 0
3 years ago
2, 5, 11, 23, ____, ______, _______, _______, ________. Conjecture:​
lisov135 [29]

Answer:

2, 5, 11, 23, 47, 95, 191, 383, 767.

Step-by-step explanation:

This sequence is 2, 5, 11, 23, 47, 95, 191, 383, 767 because as you may notice, 2+ 3 =5, double the 3 to get 6. 5+ 6 =11, double the 6 to get 11 + 12 =23, etc.

Double the factor and add it to the previous term to get your next term and so forth.

4 0
3 years ago
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