In the quadratic equation x2 - 8x + a = 0; what is the value, a, in order to form a perfect square?

Answers

Answer 1

Answer:

16

Step-by-step explanation:

(x - y)² = x² - 2xy + y²

x = x and y = a

2xy = 8x

2*x*a = 8x

     a = [tex]\frac{8x}{2x}[/tex]

a = 4

a²  = 16


Related Questions

o - 12
Solution
4.56 x 36
0.12​

Answers

Answer:

164.16 is the answer

Step-by-step explanation:

hwhshshhs

What is the distance between (8,2.5) and (8,-5)?

Answers

Answer:

10.63

Step-by-step explanation:

The answer should be 10.63. I checked all my calculations they should be correct. Hope this helps!

HELP PLEASE ITS URGENT

Answers

Answer:

C

Step-by-step explanation:

Order matters and B=J. In the answer choice, B is in the middle and so is J.

Answer:

C.

Step-by-step explanation:

D=K

B=J

C=I

They're complementary angles to each other, so- nevermind just trust me.

Find the area of the shaded region. Round to the nearest tenth if necessary.
8 in.
12 in.
5 in.
15 in.

Answers

The answer I got is 155.5. First I broke this into a rectangle ad a trapezoid. The rectangles area is 15x5 = 75. The area of the trapezoid is 1/2(8+15)7 = 23x3.5 = 80.5. So 80.5 + 75 = 155.5

hi please help i’ll give brainliest

Answers

Answer:

I think it's B

Step-by-step explanation:

Answer:

C if you read it carefully it would show on each answer. plus it will sound eventually make sense

Humble ISD
G 800 x 162
G Should playing tagi
GL
Graded Work: Trig Mixed Practice
Use the inverse trig ratios to find the value of the missing angle. Round to the nearest WHOLE NUMBER.
40
25
Angle

Answers

Answer:

esdfvc

324

Step-by-step explanation:

PLZ HELP ME PLZ HELP plssssssssss

Answers

Answer:

x = 3  x = 5

Step-by-step explanation:

3 feet= ? inches. what is it? TwT

Answers

Answer:

36 inches

Step-by-step explanation:

Answer is...

3ft → 36in

Step-by-step explanation:

To convert feet into inches, you multiply how much feet by 12.

That being said, we can multiply 3 by 12 to get how many inches 3 feet equals.

3 × 12 = 36

Hence, 36in is the answer.

Let me know of any question or concerns by commenting below.

UKNOWN LINKS WILL BE REPORTED questions in the picture

Answers

Answer:

297/27=11

Step-by-step explanation:

Item 1
Find the surface area of the regular pyramid.

Answers

Answer:

The answer is 16 in. sq.

Step-by-step explanation:

I hope this helps! Have a great rest of your day!

Answer:

16in²

Step-by-step explanation:

SA=2²+4(1/2)(2)(3)

=4+12

SA=16 in²

hope it helps..

have a great day!!

Please help I do not know how to do this

Answers

Answer:

About 33% of students prefer chocolate icecream

Step-by-step explanation:

The actual percentage would be 35%, but none of the other answers are close enough to correct, so I'd have to say the bottom one.

hope this helps you :/

Jon drove 365 miles on 20 gallons of gas. How many miles did he get per gallon?
Show work pls (no links)

Answers

Answer: he drove 18.25 miles per gallon

Step-by-step explanation:

365/20=x/1

20x=365

x=18.25

85
68
Find the value of the missing angle

Answers

An exterior angle of a triangle is equal to the sum of the two opposite interior angles
85+ 68=153

Answer:

153

Step-by-step explanation:

68+85+x =180

68+85=153

180-153=27

180-27=153

June walked 6 3/4 feet today, and Julio Walked 4 1/2 feet. How many times the length of Julio's walk was June's walk?

Answers

Answer:

1 1/2

Step-by-step explanation:

6 3/4 ÷ 4 1/2

= 27/4 ÷ 9/2

= 27/4 × 2/9

= 3/2

= 1 1/2

Brian can type 40 words a minute.
How many words can be typed in 4.5 minutes?

Answers

If we write 40 words in a minute, then we will write 180 words in 4.5 minutes!

Let’s think 1 minute equals 1x.
So that means x=40 minute

Then let’s find the value of 4.5x
4.5x40=180 words.
180 words in that long

Lily plants 2 red rosebushes, 8 pink rosebushes, and 6 yellow rosebushes. What is the ratio of pink and red
rosebushes to total rosebushes?

A. 8 : 2
B. 8 : 16
C. 10 : 16
D. 10 : 6

Answers

Answer:

C. 10 : 16

Step-by-step explanation:

Attached below

NO FILES PLSSSSSSSSSS

Answers

y = -2x + 1

y = -2x -3

none cuz they're both -2x

Answer: no solution

Step-by-step explanation:

2x+y=1

convert to y=mx+b

y=-2x+1

2x+y=-3

convert to y=mx+b

y=-2x-3

they are parallel

You roll a fair
6
66-sided die.
What is
P(roll greater than 4
)
P(roll greater than 4)start text, P, left parenthesis, r, o, l, l, space, g, r, e, a, t, e, r, space, t, h, a, n, space, 4, end text, right parenthesis?
If necessary, round your answer to
2
22 decimal places.

Answers

Answer:

3

Step-by-step explanation:

1/3 Now that is the answer

Answer: 0

Step-by-step explanation: 0

Giving brainliest please help

Answers

The answer would be 13 because if you put 7 over 56 and on the other side put 104 on the bottom. You multiply 7 by 104 and get 728 and after that you divide it by 56 and get 13.

A rock sinks 160 feet in 20 seconds. Find the average rate of change per second.

Answers

we need to find how many feet a rock sinks per second. assuming the rock falls at a constant rate we can divide each number by 20 to get 8 feet per second.

to check our worker can multiply our feet by 20, in which we get 160.

HELP ME PLEASE SOMEBODY IM REAL BAD AT MATH AND IM TAKING A TEST AND THIS QUESTION IS VERY CONFUSING I NEED A REAL ANSWER NOT A FAKE LINK!!!

Answers

Answer:

Right here again! Let me help.

Step-by-step explanation:

Its C ! The distance is 6 in between and the rate is 10. 10 x 6 = 60 !

Choose all of the formulas you would use to find the volume of the compound solid shown here.
V=nrn
V = ਗr
V = Turn
V = 47112

Answers

Answer:

v= pi*r^2*h

v=1/3 * pi*r^2*h

Diane keeps all of her toys on a shelf. The shelf is 24" long and 7" wide. If the wdith the shelf is doubled, what would happen to the total area of the shelf?

Answers

Step-by-step explanation:

Given that,

The length of the shelf = 24 inches

The width of the shelf = 7 inches

Area of the shelf, A = 24 × 7

= 168 inch²

When the width of the shelf is doubles,

New width = 14 inch

New area, A' = 14×24

= 336 inch²

It means,

A' = 2(A)

So, the new area becomes 336 inch² i.e. twice the initial area.

PLEASE HELP I WILL GIVE BRAINIEST

Answers

Answer: Where is the question? We only see the dot plot.

Step-by-step explanation: May God bless you and have a nice day! :)

Answer:

4 students had 5 candy bars is the most on the line

Step-by-step explanation:

There was no question so I'm just winging it

At least I gave an answer so I didn't steal any points

Can someone help pls!!

Answers

Answer:

C) 42.14 cm²

Step-by-step explanation:

Recall the area formulas for a square and circle:

Area of square: A=s²

Area of circle: A=πr²

Given:

π=3.14

s=14

r=s/2=14/2=7

Therefore, the area of the square is A=14²=196 cm²

The area of the two semicircles is A=3.14(7)²=3.14(49)=153.86 cm²

Find the difference between the two areas to get the shaded area:

196 - 153.86 = 42.14

Therefore, the shaded area is 42.14 cm², making C the correct choice.

Answer:

C

Step-by-step explanation:

1) find the area of the square

A = side^2 = 14^2 = 196 cm^2

2) find the radius of the two semicircles

radius = side / 2 = 14 : 2 = 7 cm

3) find the areas of the two semicircles

A = radius^2 x 3,14 x 2 = 7^2 x 3,14 = 153.86 cm^2

4) find the area of the shaded region

196 - 153.86 = 42.14 cm^2

PLEASE HELP this seems like a lot but trust me it's not! You will get a lot of points for this! Please dont waste it! I'm so stressed rn and I need help!

A quadratic function models the graph of the parabola. The quadratic functions, y=x^2 and y= x^2+3, are modeled in the graphs if the parabolas shown below.


Determine which situation best represents the scenario shown in the graph of the quadratic functions y=x^2 and y= x^2+3. Select all that apply.

-From x=-2 to x=0, the average rate of change for both functions is positive
- From x=-2 to x=0, the average rate of change for both functions is negative
- For the quadratic function y=x^2+3 the coordinate (2,7) is a solution to the equation of the function
-The quadratic function y=x^2+3has an c intercept at the origin
- The quadratic function y=x^2 has an c intercept at the origin
-For the quadratic function y=x^2 the coordinate (2,3) is the solution to the equation of the function​

Answers

Answer:

a,b,d,e is the answer got it right on edge2021

Step-by-step explanation:



The cost of a holiday is £2400

Rana pays a deposit followed by monthly payments, in the ratio

deposit : total of the monthly payments = 3:5


She makes 6 equal monthly payments. Work out her monthly payment

Answers

She makes 6 equal monthly payments. Then the monthly payment will be £666.67.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

The cost of a holiday is £2400. Rana pays a deposit followed by monthly payments, in the ratio deposit: a total of the monthly payments = 3:5.

Then the total of the monthly payment will be given as,

£2400 / Total of the monthly payments = 3:5

Total of the monthly payments = (5/3) x £2400

Total of the monthly payments = £4,000

She makes 6 equal monthly payments. Then the monthly payment will be given as,

Monthly payment = £4,000 / 6

Monthly payment = £666.67

She makes 6 equal monthly payments. Then the monthly payment will be £666.67.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ1

Cherry bought two cupcakes and got $13 back Sonia bar for cupcakes and got six dollars back in the each pay with the same amount of money what is the price of one cupcake

Answers

Answer: 13+6=21

Step-by-step explanation:

Marlin and his brother are going to Antonio, TX next week. They figure that they will drive 792 miles round trip. If their car gets 25 miles per gallon and the current cost of gasoline is $2.35, what will the gas for their trip cost?

a.$74.45

b.$58.75

c.$31.68

d.$66.75

Answers

Answer: a. $74.45

Step-by-step explanation: good luck

It’s $74.45. step by step:I hope it’s right

can someone please help me​

Answers

Answer is 3

Step by step explanation
x=0
As 0<2
f(0)=x+3=0+3=3
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