Solve x^2 — 8x + 15 = 0 by completing the square.
The solutions are x =
and x=​

Answers

Answer 1
x^2-8x+15=0
Completing the square
Therefore x^2 -8x + (8/2)^2 -(8/2)^2+15=0
(X-4)^2 -16+15
(x-4)^2 -1=0
(x-4)^2=1
x-4=+1,-1
x=5 and x=3

Related Questions

PLS HELP ME ASAP!!!!!

Answers

Answer:

1:6 2:-5 3:-3

Step-by-step explanation:

Answer:

1. 6

2. -5

3. -3

Step-by-step explanation:

1. Since there are 2 negatives, they cancel out to create a positive. 18/3=6. The answer, is 6

2. Since there is only 1 negative, just do 20/4 and add a negative in front. 20/4= 5, then add the -, then boom, -5.

3. Again, 1 negative. 21/7=3. Add the negative, boom, -3.

PLEASE HELP ASAP!!!!!!!!

Answers

Yeah what that guy said above me

Which statements are true about the ordered pair (10, 5) and the system of equations?

{ 2x−5y=−5
{ x+2y=11


Select each correct answer.


The ordered pair (10, 5) is a solution to the first equation because it makes the first equation true.

The ordered pair (10, 5) is a solution to the second equation because it makes the second equation true.

The ordered pair (10, 5) is not a solution to the system because it makes at least one of the equations false.

The ordered pair (10, 5) is a solution to the system because it makes both equations true.

Answers

Answer:

the solution to the system is (5,3)

Step-by-step explanation:

the first statement is True:    2(10) - 5(5) = -5

                                                20 - 25 = -5

                                                  -5 = -5

the second statement if False:    10 + 2(5) ≠ 11

the third statement is True

the last statement is False

14. Susan went on a bus at 5:07 pm and got off at 6:32 pm. How long was 1 point
her journey?*
O 60 minutes
O 85 minutes
O 90 minutes
O 105 minutes​

Answers

Answer:

susan took a detour with a stranger she told me so

Which statement explains one way that ponds and lakes differ?

Ponds are shallower than lakes.

Ponds are larger than lakes.

Pond water moves more than lake water.

Lakes have more plants at the bottom than ponds.

Answers

Answer:

Ponds are shallower than lakes.

Step-by-step explanation:

The statement that explains one way that ponds and lakes differ is: Ponds are shallower than lakes.

Ponds and Lakes

The major difference between ponds and lakes are ponds are :

Pond are depth or shallower and smaller than lakes while lakes are larger or bigger.

Lakes are more deeper compare to ponds which inturn means that  ponds are not deeper than lakes.

Inconclusion the statement that explains one way that ponds and lakes differ is: Ponds are shallower than lakes.

Learn more about ponds and lakes here:https://brainly.com/question/131190

On a Cartesian plane, the horizontal axis is called the _______ -axis and the vertical axis is called the _______-axis.

Answers

Answer:

Step-by-step explanation:

horizontal = x-axis

vertical = y-axis

Hope this helps!

Answer:

Horizontal: X-axis; Vertical: Y-axis

Step-by-step explanation:

a statue casts a 40 foot shadow. Mrs. Swift, who is 5 feet 6 inches tall, casts a 4 foot shadow. how tall is the statue?

Answers

Answer:

56 foot

Step-by-step explanation:

5.6inches =4foot

what about 40foot

=40foot *5.6/4foot

= 56 foot

Answer:

shajjababhnamajnahahshssb

PLEASE HELP, IM GIVING BRAINLIEST AND POINTS

Answers

Answer:

waht is it

Step-by-step explanation:

Answer:

Step-by-step explanation:

Help with what?

Is there supposed to be a picture?

●﹏●

Directions
1.Make sure to put the question number next to each answer.
2. If you correctly fill out the questions you will be given a link to 50 points.
3. If you incorrectly answer the question (put random numbers or letters) I will report you.
( You will be messaged through inbox so be sure to add your email in the answer)
Also you will be sent the link within 5 mins of the time you answered the question.

Answers

So you want me to answer that entire page for you?

Okay

what are you doing for math

Answers

algebra.............

This is not an academic question and cannot be answered by Brainly contributors. Happy holidays!

can someone help me T-T

Answers

Answer:

This should be the answer

Step-by-step explanation:

One = a, c, f, e

Infinite = d

No = b

Which of these equations has no solution 6(x - 2) = 6x - 3
2(x - 3) = 2x - 6
3(x - 2) = x - 6

Answers

go with your heart if you think that your heart is telling you something just go with it trust your instinct

Olivia is making model cars to go on shelves in her room. The number of wheels she uses is a function of how many cars she makes: if she makes 1 car, she uses 4 wheels; if she makes 2 cars, she uses 8 wheels; if she makes 3 cars, she uses 12 wheels; and so on. She has exactly 28 wheels she can use to make cars. What is the domain and range for the function?

Answers

Answer:

Domain = 1 to 7

Range = 4 to 28

Step-by-step explanation:

Given that:

Number of wheels used is a function of number of cars manufactured.

Number of wheels present = 28

1 car uses 4 wheels

2 cars use 8 wheels.

3 car uses 12 wheels

and so on.

Let the function be of the form:

[tex]y =f(x)[/tex]

Domain of the function is the value of [tex]x[/tex] that can be given as valid input to the function.

Range of the function is the value of [tex]y[/tex] that can be output of the function.

Let [tex]x[/tex] be the number of cars manufactured.

Then value of [tex]y[/tex] is nothing but [tex]x[/tex] times 4.

[tex]y=4x[/tex]

We are given that maximum value of [tex]y[/tex] can be 28.

[tex]28 = 4x\\\Rightarrow x =7[/tex]

Therefore, maximum value of input can be 7.

Minimum number of wheels can be 4 to make a minimum of 1 car.

Therefore domain is 4 to 28 and range is 1 to 7.

I NEED HELP ,PLAESE AYUDAAAAA POR FAVOR

Answers

Answer:

Step-by-step explanation:

First off, if side BC and side EC are congruent, then this is an isosceles triangle. It then goes to follow by the Isosceles Triangle Theorem that angle EBC is also 67 degrees. By the Triangle Angle-Sum Theorem then, angle BCE is 180 - 67 - 67 which is 46 degrees. Angle BCE is supplementary to angle FCA which means they add up to equal 180, so angle FCA is 180 - 46 = 134.

Angle FCA = 134

2.
Work out 5.9 + 3.172

Answers

Answer:

9.072

Step-by-step explanation:

Answer:

9.072

Step-by-step explanation:

For this problem, we will simply use the property of 0 and addition to accumulate a sum.

Note, any digit not shown to the right of a decimal can be written with a zero. So 5.9 can be rewritten as 5.900.

Let's perform the addition.

5.900

+ 3.172

-----------

9.072

Using the idea of zeros to the right of the decimal, we are able to trivially complete this sum.

Hence, the answer is 9.072.

Cheers.

Please helppppp!!!!!!!!

Answers

Answer: I think it's B

Step-by-step explanation: You can use the answer if you want.

Add and Subtract the fractions below: 1/3 and 1/4

Answers

Addition Answer: 1/3 + 1/4 = 4/12 + 3/12 = 7/12

Subtraction Answer: 1/3 - 1/4 = 4/12 - 3/12 = 1/12

Step-by-step explanation:

Basically, find the greatest common multiple of 3 and 4.  Once you do this, then you can multiply across and solve any fraction problem!

A laptop has a listed price of 623.95 before tax. If the sales tax rate is 9.25%, find the total cost of the laptop with sales tax included.
Round your answer to the nearest cent, as necessary.

Answers

ANSWER.

$1,500.00 net price / sales tax 6.25 / $1,593.75 total price

Step-by-step explanation:

hope it helps

Marcel said he can find 52 × 10 by adding a 0 to the end of 52 to get 520.

Marcel finds 74.26 × 10 using the same method and gets 74.260.

Use the drop-down menus to complete the statement about why Marcel is correct or incorrect.

Answers

Answer:

The answer is 742.6

Step-by-step explanation:

What Marcel said is that if you multiply a number times 10 it is only necessary to add a zero at the end. However, with the number 74.26, it is necessary to move the dot instead of adding a zero due to this, the correct answer is 742.6 and not 74.260, which is the same as the original value (74.2.)

The answer is 742.6 guy above me got it before me

n-6+4=24 solve for n

Answers

n= 26
hope this helped !!
the answer is n= 26 :))

please answers this​

Answers

Answer:

shusidvxxosbsbzbz

Step-by-step explanation:

usjzkdofjfbf

Answer:

50 degree for X look at pic attached

i need someone to help me with my algebra homework :(

Answers

Answer:

ok, what grade level? and you need to actually type the questions into here

I'll help because your pfp proves that you are indeed a classy individual

So.... using the point-slope formula

y-y₁=m(x-x₁)

y₁ is the y-coordinate

x₁ is x-coordinate

m is the slope

when we find the slope from both points we find that they both have a slope of 16/3

therefore... the lines are parallel

In rhombus ABCD , m∠EAB=27∘ .

What is m∠EBC ?

Answers

Answer:

27 degrees

Step-by-step explanation:

is the answer

For every | | followers Matthew has, Kevin has | |followers.


PLEASE HELP ILL MARK BRAINLEST

Answers

Answer:

For every 5 followers Mathew has, Kevin will have 10

Step-by-step explanation:

Answer:

For every 5 followers Matthew has, Kevin has 10 followers.

Step-by-step explanation:

HELP PLEASE ITS SO HARD IM CRYING PLS HELP

Answers

Answer:

I think it might be d

Step-by-step explanation:

Im not completely sure, BUT YOU GOT THIS

Examine the diagram. It is not drawn to scale. A triangle has angles 1, 2, 3. The exterior angle to angle 1 is 4, to angle 2 is 5, to angle 3 is 6. In the diagram shown, m∠1 = 30° and m∠5 = 120°. What is the sum of the measures of ∠4, ∠5, and ∠6? degrees Identify the following angle measures. m∠2 = degrees m∠4 = degrees m∠6 = degrees

Answers

Answer:

✔ 360°

Identify the following angle measures.

m∠2 = ✔ 60

m∠4 = ✔ 150

m∠6 = ✔ 90

Step-by-step explanation:

i just finished answering the question

Answer:

C

B

B

C

Step-by-step explanation:

for the lazy ppl

The integer 49 can be written as the sum of smaller perfect squares in a variety of ways. One such way includes six terms: $25 9 9 4 1 1$. If each term has a value between 0 and 49, what is the fewest number of perfect square terms smaller than 49 that can be added together for a sum of 49

Answers

9514 1404 393

Answer:

  3

Step-by-step explanation:

The minimum length of the sum of perfect squares that total 49 is 3:

  49 = 36 +9 +4

  = 6² +3² +2²

GEOMETRY) Please solve for X! plspls​

Answers

Step-by-step explanation:

so the answer is would be X = 15

Correct !!!!!!!!!! Please give me thanks

The coordinates of the turning point of the graph of
y = x
2 − 8x + 25 is (4,9).
Hence describe the single transformation which maps
the graph of y = x

2 onto the graph of

y = x
2 − 8x + 25.

Answers

Answer:

(x + 4), (y + 9)

Step-by-step explanation:

y= x^2 and y = x^2 - 8x + 25 are parabolas which open upwards.

The turning point of y = x^2 is at the origin (0, 0).

So the transformation is 4 units to the right and 9 units upwards:

(x + 4), y+ 9).

NEED ASAP!!!

Several bags of marbles of equal number are added to an empty jar. The total number of marbles in the jar is 1,320. A student places 9 more bags of marbles in the jar, bringing the total number of marbles in the jar to 1,518 marbles. If each bag in the jar contains the same number of marbles, how many marbles does each bag contain?

Answers

Answer: 22 Marbles

Step-by-step explanation:

1,518 - 1,320 = 198

198 ÷ 9 = 22

Answer:

22 marbles

Step-by-step explanation:

1518 - 1320 = 198

198/9 = 22

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