Best Method using system of equations


x=4y+8
2x-8y=-3

Answers

Answer 1
Answer: In this case, since one equation is in the form of x=, substitution would be best for this problem.  Simply plug in 4y + 8 in place of x in the second equation, solve for y, then plug that value into the first equation to find x.
Answer 2
Answer: X=4y+8
2x-8y=-3

lets use the substitution method
2x-8y=-3
2(4y+8)-8y=-3
8y+16-8y=-3
16 is not equal to -3 so lets try elimination

x=4y+8
2x-8y=-3

xhange the 1st equation to standard for 
x-4y=8
2x-8y=-3

multiply the 1st equation to remove x
2x-8y=8
2x-8y=-3
0 is not equal to 11 

therefore we cannot solve using both equations so te question's answer is undefined

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Solve for x: 2x + 12 = 64

Estimate the quotient by rounding the expression to relate to a one digit fact

Answers

to estimate you would by finding a number like 20 or 25 that is closest to the number. I don't exactly understand your question though

the ratio of girls to boys in a grade is 6 to 5. If there are 24 girls in the grade then how many students are there altogether?

Answers

Answer:its 44

Step-by-step explanation:

Segments AB, DC and Ec intersect at point C. Angel DCE measures 148. Find the value of x.

Answers

The image is attached.

Answer:

x = 16°

Step-by-step explanation:

Segment AB, segment DC and segment EC all intersect at point C.

Here, we are told angle DCE measures 148°.

This is a semi-circle, and the total angle of a semi-circle is 180°.

Which means, x+x+148 = 180

Solving for x, we have:

x+x+148 = 180

2x + 148 = 180

2x = 180 - 148

2x = 32

x = (32)/(2)

x = 16°

The value of x is 16°

Final answer:

To find the value of x, we need to deduce the measurements of angles formed by the intersecting segments. By applying the properties of angles in triangles and parallel lines, we can determine that x equals 32 degrees.

Explanation:

Let's name the point of intersection as M. Since segments AB, DC, and EC intersect at point C, it means that point C is common to all three segments.

Given that angle DCE measures 148 degrees, it means that angle DCM (formed by segments DC and EC) is also 148 degrees. We know that the sum of angles in a triangle is 180 degrees.

Therefore, angle CMD (formed by segments DC and AB) is equal to 180 - 148 = 32 degrees. Since segments DC and AB are parallel, angle CMD is also equal to angle ACB.

Hence, the value of x is 32 degrees.

Learn more about Angles and Intersecting Segments here:

brainly.com/question/34817957

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I need help with this algebra question

Answers

the first answer
f(x)= (x-3)^2 + 4

A. Use the composition to prove whether or not the functions are inverses of each other.B. Express the domain of the compositions using interval notation.

Answers

Here we need to find fog and gof, and they must be equal to x .

Let's check out fog

fog = f(g(x))

f((4x+1)/(x))

Substituting the value of g(x) in f(x) for x, we will get

(1)/((4x+1)/(x)-4)  =(1)/((4x+1-4x)/(x))=x

Domain

Here the input function is g(x), and the denominator should not be 0. So x should not be zero. Therefore, domain is

(-\infty,0)U(0, \infty)

Now let's check gof

gof = g(f(x))

Here we need to insert f(x) in g(x) for x, and on doing that , we will get

(4((1)/(x-4))+1)/((1)/(x-4))   = (4+x-4)/(1)=x

Domain

Here the input function is f(x), and denominator should not be zero.

SO domain is

(- \infty,4)U(4, \infty)

Since fog = gof =x, so the given function are inverses of each other .

Answer:

so basically you do the answer over and over till you get it right cuz thats what my momma told me to do and mommas always right

Step-by-step explanation:

How to factor out the coefficient of the variable : 1/2m + 1/2 = ??

Answers

(1)/(2)m+(1)/(2)=(1)/(2)(m+1)
1/2m+1/2

=1/2(m+1)

*Research the "distributive property" to simplify such problems.

Below is an example of how the distributive property functions:

a(b+c+d)

=ab+ac+ad