MATHEMATICS HIGH SCHOOL

To solve the equation below by completing the square what is the first step? 4x^2+16x=20

A. add 8 to each side of the equation.
B. add 64 to each side of the equation.
C. multiply both sides of the equation by 1/4.
D. multiply both sides of the equation by 1/8.

Answers

Answer 1
Answer: C multiply both sides of the eaqaution by 1/4

Related Questions

Will is building a playhouse for his cousin. He wants the playhouse to be 50 percent taller than his cousin, who is 46 inches tall. How tall should the playhouse be?
Which polynomial identity will prove that 64+27=91
Solve.1.5 - 0.25(a + 4)= 3 + 3(0.05 - 0.5a)
Ac=2(5a+1)Bd=2(a+1)
Find d and all three sides

N^2-5n=3
Round to the nearest hundredth

Answers

Let's solve your equation step-by-step.n2−5n=3Step 1: Subtract 3 from both sides.n2−5n−3=3−3n2−5n−3=0Step 2: Use quadratic formula with a=1, b=-5, c=-3.n=−b±√b2−4ac2an=−(−5)±√(−5)2−4(1)(−3)2(1)n=5±√372n=52+12√37 or n=52+−12√37Answer:n=52+12√37 or n=52+−12√37

There are 24 men in a room¼ of the men are wearing red shirts
½ of the men are wearing green shirts
The remaining men are wearing blue shirts
Workout the number of men that are wearing blue shirts​

Answers

Answer:

6

Step-by-step explanation:

1/4= 6 men

1/2=12 men

therefore 24-12-6=6 men

on sara's computer, 3/8 of the hard drive is files. Of the files, 1/6 are games . What part of the hard drive is games?

Answers

\frac38 \cdot \frac16=\frac3{48}=\frac1{16}
\frac38\ \cdot\ \frac16=\frac18\ \cdot\ \frac12=(1)/(16)

Which test point holds true for 2/5x - 1/5>=0 ?

Answers

2/5x >= 1/5 multiple both sides by 5/2
so , x >= 1/2

Molly is on a game show. To win $1,000,000, she must answer this question: What key features are necessary—and how are the features used—to create the sketch of a polynomial function?

What is Molly's winning answer? Explain in complete sentences.

Answers

key fetures (that I think are helpful) are finding where the vertex (if applicable), x and y intercepts, and the horizontal and vertical and slanted assymtotes and holes in the fn are. Assume you have a function in the form (P(x))/(Q(x)). To find the x intercepts, reduce/simpify the fraction and set the numerator to 0 and solve. To find the y intercepts, use  the reducd fraction and find the result when you replace all x's with zero.  To find the vertical asymtotes, you reduce/simplify the fraction and set the deomenator to zero, the result is the equaton of the vertical asemtote which the function never crosses. then, to find the horizontal assymtotes, you have 2 options: if the degree if P(x)<Q(x) then the horiziontal assymtote is y=0. If degree P(x)>Q(x), divide the leading coeficient of P(x) by the leading coeficient of Q(x). I don't rmember how to find slant assymtotest. To find whether the line crosses the horizontal assymtote, set the reduced function equal to the value of the horizontal assymtote, if you get a true statment, that is where it crosses, if false, it doesn't cross.
when you eliminated something in reducing the fractio, that thing you elimated was a hole. Set that equal to zero and solve for x value, to get y value, input that x value  into  the reduced function and solve fo y value of hole.

to graph, plot x and y intercepts. remember that the lines get close to but never cross the vertical assymtotest, but they can cross the horizontal assymtotes sometimes. remember to plot the hole and draw the assymtotes.  

Which best describes the sides of all trapezoids? A.
Opposite sides are parallel.

B.
All sides are the same length.

C.
Only one pair of sides is parallel.

D.
All sides are different lengths.

Answers

C. Only one pair of sides is parallel.
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