Solve by completing the square. X^2- 8x +5 =0 can someone explain how to get to the answer?

Answers

Answer 1

Answer:

the answer x= 0.583 or x= -8.583


Related Questions

Brainliest. Brainliest WHO WANTS A BRAINLIEST

Answers

Answer:

B

Step-by-step explanation:

Answer:

1. x > -25

2. x > -16

3. x > -2

4. x [tex]\geq[/tex] 10

Give brainliest

-5×3+7×4-54÷9+2 ( step by step explanation pls do fast...)​

Answers

Answer:

9

Step-by-step explanation:

-5×3+7×4-54÷9+2

-5×3+7×4-6+2

-15+28-6+2

-15-6+28+2

-21+30

9

Hey!! Can any of y'all help me find the center and radius of this equation?

x^2+y^2-8x+2y=-8

Answers

Answer:

Center: (4,-2)

Radius: 2√3 units

Step-by-step explanation:

We wish to find the center and radius of the equation x²+y²-8x+2y=-8

Step 1: Complete the square for both variables:

x²+y²-8x+2y=-8

x²-8x+y²+2y=-8 (Rearrange)

x²-8x+16+y²+2y+4=-8+16+4 (Add to both sides)

(x-4)²+(y+2)²=12 (Reduce trinomials)

Step 2: Interpret the center and radius of the circle:

The equation of a circle is (x-h)²+(y-k)²=r² where (h,k) is the center of the circle and r is the radius of the circle. Since (h,k) translates to (4,-2), this means the center of the circle is (4,-2). Since r²=12, then r=√12=2√3 units

Seth’s bank charges $5 a month to maintain a checking account and $0.50 for each check Seth writes. Last month, Seth paid a total of $6.50 in checking account fees. How many checks did he write?

A 1 C 3

B 2 D 4

Answers

Answer:

13

Step-by-step explanation:

Since Seth pays $0.50 for each check he writes, he would write (let x be how many checks Seth wrote) "x" checks for $6.50. That means;

1 = 0.50

x = 6.50

Now let us set up a fraction:

[tex]\frac{0.5}{1}=\frac{6.5}{x}[/tex]

Step 1: Cross multiply

[tex]0.5x=1\cdot \:6.5[/tex]

[tex]0.5x=6.5[/tex]

Step 2: Divide both sides by [tex]0.5[/tex]

[tex]\frac{0.5x}{0.5}=\frac{6.5}{0.5}[/tex]

Simplify

[tex]x=13[/tex]

Therefore, Seth will write 13 checks for $6.50

of the 30 students in the class 12 of them have pets. Using the ratio, how many students would have pets in school with 325 students. pls hurry it is an emergency 40 points.

Answers

Answer:

130 students

Step-by-step explanation:

12/30 have pets

12:30

2:5

2/5 × 325= 130

130 students will be the correct answer

Please answer this math question for me

Answers

Answer:

Hello! answer: e = 108 d = 32 f = 40 because

108 + 108 + 32 + 32 + 40 + 40 = 360 Hope this helps!

The diameter of a circle is 28 yards. What is the circle's area?
Use 3.14 ford.
square yards
Submit

Answers

Answer:

615.44

Step-by-step explanation:

If diameter = 28, then radius is 14

Area = 3.14 x (14x14) =615.44

Solve for b.
- 28 – 6b= 8

Answers

Answer:

-6

Step-by-step explanation:

- 28 – 6b= 8

step 1 add 28 to each side

-28 + 28 cancels out

28 + 8 = 36

we now have -6b = 36

step 2 divide each side by -6

-6b / -6 = b

36 / -6 = -6

we're left with b = -6

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

[tex]b=-6[/tex]  

»»————- ★ ————-««  

Here’s why:  

We will have to preform inverse operations to solve for 'b'.

[tex]\boxed{\text{Solving the equation for 'b':}}\\\\-28-6b=8\\\\--------\\\rightarrow-28+28-6b=8+28\\\\\rightarrow-6b=36\\\\\rightarrow\frac{-6b=36}{-6}\\\\\rightarrow \boxed{\text{b=-6}}\\\\\text{The value of 'b' is \boxed{-6}.}[/tex]

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

15.48 rounded to the nearest whole number

Answers

Answer:

15

Hope that this helps!

Please help! For math.

Answers

Answer:

volume = 36

Step-by-step explanation:

What is cos 30°? 60° 1 90° 30° V3 O A. v3 O B. 1 O c.​

Answers

Answer:

E

Step-by-step explanation:

Cos=Adjacent/hypotenuse

Cos30=rad3/2

The cosine function for Ф = 30 is equivalent to :

cos(30) =√3/2.

What are trigonometric functions?

There are six major trigonometric functions as -

Sine(x)Cosine(x)Tangent(x)Cotangent(x)Secant(x)Cosecant(x)

We can write the relation between them as -

Sine = 1/cosecantCosine = 1/secantTangent = 1/Cotangent

Also the following trigonometry relations hold true -

sin²Ф + cos²Ф = 1

1 + tan²Ф = sec²Ф

1 + cot²Ф = cosec²Ф

Given is a right angled triangle as shown in the image having 60 - 90 - 30 orientation and the measured sides as shown in the image.

We can write the cosine function as -

cosФ = Base/Hypotenuse

cos(30) = √3/2

So, we can conclude that the cosine function for Ф = 30 is equivalent to :

cos(30) =√3/2

Therefore, the cosine function for Ф = 30 is equivalent to :

cos(30) =√3/2.

To solve more questions on trigonometric functions, visit the link below-

https://brainly.com/question/30672622

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1) Find the area of a triangle with a height of 9 cm and a base of 5 cm.​

Answers

Step-by-step explanation:

area of triangle=1/2 base×height

1/2,×5×945/222.5cm²

stay safe healthy and happy..

hello please help i’ll give brainliest

Answers

Erosion should be the right answer

Answer:

Volcanic Eruptions, Mountain Range Formations, Earthquakes

Step-by-step explanation:

PLEASE HELP!! NO LINKS!!

Answers

Answer:

105°

cause You can measure an arc in degrees just like you measure an angle


[tex]1 + 1[/tex]
im just happy to boost points​

Answers

The answer to this math question is 2

Alex wants to get an apartment which costs $1000 per month. They want 1 month's rent
deposit and a $50 application fee. How much cash does he need today to get the
apartment?

Answers

Answer:

$1050

Step-by-step explanation:

$1000 + $50 = $1050

Please help! I will give Brainliest!

Answers

Answer:

A. 44/625

Step-by-step explanation:

There are 25 marbles total. To first calculate the probability of picking a yellow marble first can be represented as 11/25, the probability of picking blue is 4/25. We multiply these to figure out the probability of finding a yellow marble and then a blue one.

11/25 x 4/25 = 44/625

1. The graph of f(x) = |x| is shown below. Write the equation for the stretched graph, g(x).

Step 1: Start with the equation g(x) = k • f(x). Substitute the known point and solve for k.
Show your work. (2 points)

Answers

Answer:

Step-by-step explanation:

If the input is 2 and the output is 6, then f(x) = 3IxI

When planning for a dinner party, my mom purchased 3 pies of the same size for dessert. We ate 3/4 of one pie and 7/8 of another pie. How much pie was left over after the party?

Answers

Answer

1 [tex]\frac{3}{8}[/tex]

Step-by-step explanation:

Answer:

1 3/8

Step-by-step explanation:

First, we have to make the fractions have the same denominator. 3/4= 6/8.

So, in all, they ate 13/8, or 1 5/8 of the pie. 3- 1 5/8= 1 3/8

Wich of the following equations would NOT contain the point (4,12)

Answers

Given:

The given point is (4,12).

To find:

The equation that would NOT contain the point (4,12).

Solution:

We need to check each equation for the point (4,12).

In option A, the given equation is:

[tex]y=-2x+20[/tex]

Putting [tex]x=4[/tex], we get

[tex]y=-2(4)+20[/tex]

[tex]y=-8+20[/tex]

[tex]y=12[/tex]

This equation contains the point (4,12).

In option B, the given equation is:

[tex]y=\dfrac{1}{2}x+8[/tex]

Putting [tex]x=4[/tex], we get

[tex]y=\dfrac{1}{2}(4)+8[/tex]

[tex]y=2+8[/tex]

[tex]y=10[/tex]

This equation does not contain the point (4,12).

In option C, the given equation is:

[tex]y=-\dfrac{1}{2}x+14[/tex]

Putting [tex]x=4[/tex], we get

[tex]y=-\dfrac{1}{2}(4)+14[/tex]

[tex]y=-2+14[/tex]

[tex]y=12[/tex]

This equation contains the point (4,12).

In option D, the given equation is:

[tex]y=\dfrac{3}{4}x+9[/tex]

Putting [tex]x=4[/tex], we get

[tex]y=\dfrac{3}{4}(4)+9[/tex]

[tex]y=3+9[/tex]

[tex]y=12[/tex]

This equation contains the point (4,12).

Only the equation in option B does NOT contain the point (4,12). Therefore, the correct option is B.

Graph the inequality on the axes below. Plz help this is due tonight! I’ll give you brainliest!

Answers

Answer:

If written in Standard form this equation would be:

[tex]y \geq \frac{x}{3} + (-\frac{18}{3} )[/tex]

Now i graphed this equation in Desmos and here is what i got:

Hope this helps!

hope it help if not let me k ow and I'll find a way to explain it :>

Please help me with this homework

Answers

Answer:

9.81 x 100,000

Step-by-step explanation:

Answer:

9.81*10^5

Step-by-step explanation:

Move the decimal point to the right of the first digit of the number. It should be a decimal number between 1 and 10. Write that down.

Then count the number of places you need to move the decimal point from that place to the right, and that's how many times 10 needs to be squared.

I need help please Solve for x. Links with be reported

Answers

Answer:

x=12

Step-by-step explanation:

60°+60°+5x=180°

5x=60°

x=12

Answer:

x = 12

Step-by-step explanation:

60 + 60 + 5x = 180

120 + 5x = 180

5x = 60

x = 12

ok so basically I need help with this. Which expression is equivalent to x(15y+77)?​

Answers

Answer:

15xy+77x

hope this helps

have a good day :)

Step-by-step explanation:

In the right triangle shown below, what is the sine of angle θ?


A.1.100

B.0.414

C.2.191

D.0.909

Answers

Step-by-step explanation:

In given rt.angled triangle,

Sin thita =p/h

=26.1/28.7

=0.9094

So correct answer is option D.

0.9094 is the sine of angle θ

What is trigonometry?

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

here, we have,

from the given figure,

In given rt.angled triangle,

Sin thita =p/h

=26.1/28.7

=0.9094

So correct answer is option D.

To learn more trigonometry click:

brainly.com/question/26719838

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The city is planting new trees in its downtown to make the streets more comfortable for visitors. They are planting each tree 12 feet apart. How many trees can they plant on 2 miles of streets? Hint is that 5280= 1 mile. Please help

Answers

Step-by-step explanation:

let's make T= the number if trees...

If we're placing one tree every 12 feet for two miles, then:

T×(space between trees) = (number of miles)×(1mi.)

T×12ft. = 2×1mi. = 2×5280ft.

Dividing by 12ft. to isolate T gives us:

T=(2×5280)/12 = 880

So that'll be 880 trees for 2 miles of street.

The number of trees that they plant on 2 miles of streets will be 880 trees.

What is division?

Division means the separation of something into different parts, sharing of something among different people, places, etc.

The city is planting new trees in its downtown to make the streets more comfortable for visitors.

They are planting each tree 12 feet apart.

Then the number of trees that they plant on 2 miles of streets will be  

We know the conversion of miles into feet.

  1 mile = 5280 feet

2 miles = 10560 feet

Then the number of trees will be

Number of trees = 10560 / 12

Number of trees = 880

More about the division link is given below.

https://brainly.com/question/369266

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10. How do you find the product of the following? Show all your work. a. Binomial squared: (2x + 3)2 b. Binomial squared: (2x - 3)2 C. Difference of squares: (x + 5)(x - 5)

Answers

Answer:

A

Step-by-step explanation:

A because when you find the product you need to add

A data set is made up of these values.
1, 4, 4, 5, 6, 8,9
Find the interquartile range.
A. 9 -1 = 8
B. 9-8 = 1
C. 4-1 = 3
O 0
D. 8 -4 = 4
SUBMIT

Answers

Answer:its D 8 -4 = 4

Step-by-step explanation:

As a fraction in simplest terms, what would you multiply the first number by to get
the second?
First number: 2
Second number: 3

Answers

Answer:

1/2

Step-by-step explanation:

if you have this equation, 2n=3, and wanted to solve for 'n' then you could multiply each side by 1/2

Which graph shows a system of equations with the solution (5,-3)?

Answers

Answer:

the first one

Step-by-step explanation:

the two lines intersect exactly at 5, -3

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