2x^2+8−3=0 Complete the square

Answers

Answer 1

Answer:

- 5/4 or - 1 1/4

Step-by-step explanation:

Step 1:

2x² + 8 - 3 = 0      Equation

Step 2:

4x + 8 - 3 = 0      Exponents

Step 3:

4x + 5 = 0      Combine Like Terms

Step 4:

4x = - 5     Subtract 5 on both sides

Step 5:

x = - 5 ÷ 4    Divide

Answer:

x = - 5/4 or - 1 1/4

Hope This Helps :)


Related Questions

Which triangle defined by three points on the coordinate plane is congruent with the triangle illustrated in quadrant 1? Why?

A. (-5, -5) (-3, -1) (-3, -5) because corresponding pairs of angles are congruent

B. (-10, -10) (-6, -10) (-6, -2) because corresponding pairs of angles are congruent

C. (-5, -5) (-3, -1) (-3, -5) because corresponding pairs of sides and corresponding pairs of angles are congruent

D. (-10, -10) (-6, -10) (-6, -2) because corresponding pairs of sides and corresponding Pairs of angles are congruent

Answers

Answer: C. Explanation: congruent triangles must have both equal angles and equal sides. The triangles with vertices at (-5, -5), (-3, -1), and (-3, -5) has the same proportions as the parent triangle, making them congruent.

What's the circumference of a circle with a diameter of 9 inches?​

Answers

Answer:

9pi

Step-by-step explanation:

circumference= 2 (pi) (r)

radius = diameter \ 2

r = 9 \ 2 = 4.5in.

c = 2 (pi) (4.5)

c = 9pi or 28.3in.

Hope this helps!

Need help with math hw

Answers

These are consecutive interior angles so they equal 180.
7x+35+84 = 180
7x+35 = 96
7x = 61

X = 8.714285714285714

Answer:

x=7

Step-by-step explanation:

since the two angles are equal, set them equal to each other and solve for x

7x+35=84

subtract 35 from both sides

7x=49

divide both sides by 7 to isolate x

x=7

A hiker is 3.5 miles from her campsite when she begins to walk back to it. She hikes back toward the campsite at a constant rate of 2.1 miles per hour.
Which equation models the distance of the hiker from her campsite? (Let m represent her distance, in miles from the campsite and h represent the number of hours since she begin walking back.)
O m= 3.5+ 2.1h
Om= 3.5h - 2.1
O m = 3.5h + 2.1
m = 3.5 - 2.1h

Answers

I really don’t understand it but can you do a little more explaining

-95=14x-7+30x

plz show work ty :)

Answers

Answer:

x = -2

Step-by-step explanation:

-95= 14x - 7 + 30x (collect like terms)

-95 = 44x - 7 (add 7 on each side)

-88 = 44x (divide by 44 on each side)

-2 = x

-95= 14x-7+30

-95= 14x+23
-23= 14x

-118=14x
X=8.42

Jose's batting average is 0.250 after 160 times at bat, which means he made a hit 40 of the times he was at
bat. He wants to improve his batting average to 0.333. If he makes a hit the next x times at bat, which
equation can be used to calculate the number of hits needed to obtain this improved batting average?
A. +40
160
.333
B.
160
= .333
2+40
C.
2+40
2+160
.333
O
D.
3+160
= .333
+40

Answers

Answer:

The correct option is;

[tex]\dfrac{x + 40}{x + 160} = 0.333[/tex]

Which is of the form of option C with 2 replaced by x and the characters formatted

Step-by-step explanation:

The given parameters are;

Jose's present batting average = 0.250

The number of times he was at bat = 160

The number of times he made a hit = 40

The batting average he wants to improve to = 0.333

If he makes a hit the next x times he was at bat is represented as if he makes a hit each time, for the next x time he was at bat. We have;

The number in times he makes a hit the next x times he was at bat = x

Therefore, we get;

New total number of hits Jose makes = 40 + x = x + 40

New total number of time Jose was at bat = 160 + x = x + 160

Therefore, given that Jose intends to improve his batting average to 0.333, and that the batting average is given by the relation;

[tex]Batting \ average = \dfrac{The \ number \ of\ hits}{The \ number \ of\ at \ bat }[/tex]

To find x, we have;

[tex]0.333 = \dfrac{x + 40}{x + 160}[/tex]

Therefore, the correct option is most likely C. where the 2 is supposed to be x.

The angle measurements in the diagram are represented by the following expressions. BLUE ∠A=5x−5 GREEN ∠B=3x+13
Solve for x and then find the measure of ∠B

Answers

Answer:

13

Step-by-step explanation:

48.073 rounded to the nearest hundredth

Answers

Number: 48.073

Nearest: hundredths (2 decimal)

Result: 48.07

          hope this helped and hope its correct tell me it its not !!!

Please help :(

Find the value of X in the triangle shown below.​

Answers

Answer:

x = 33°

Step-by-step explanation:

All angles in a triangle add up to 180°.

Step 1: Set up equation

x + 114 + 33 = 180

Step 2: Solve for x

Combine like terms: x + 147 = 180Subtract 147 on both sides: x = 33

The product of two radicals is always an irrational number.
AIways True
Never True
Sometimes True

Answers

Answer:

The answer is Sometimes True.

Step-by-step explanation:

Radicals are number that have roots (√) .

Irrational are numbers that cannot be written in a form of fraction (a/b) .

I will show you some examples :

√2 × √2 = 2 (rational)

√2 × √5 = √10 (irrational)

Therefore, the products of 2 radicals will sometimes give rational or irrational numbers.

The total number of calories consumed by Ethan when eating French fries varies directly with the number of French fries that Ethan eats. Ethan eats 16 French fries and consumes 224 calories. How many French fries does Ethan eat if he consumes 406 calories?

Answers

Answer:

29 French fries

Step-by-step explanation:

Total number of calories consumed by Ethan when eating French fries varies directly as the number of French fries that Ethan eats

The first step is to calculate the constant k

No of calories= k × no of French fries

k = No of calories/No of French fries

k = 224/16

k = 14

Therefore the number of French fries eaten by Ethan if he consumes 406 calories can be calculated as follows

No of French fries= No of calories/k

= 406/14

= 29

Hence Ethan eats 29 French fries if he consumes 406 calories

Do you have a babysitting job that pays 8.50an hour your total pay for this week was 136 right and solve an equation to find the number of hours I babysat this week

Answers

Answer:

gfdhzhjdzg

Step-by-step explanation:

fjrfyijyfj

Hey! This is due today and I’m lowkey not having a good brain day, could you help?

Answers

1,7
2,10
3,5
4,7
5,7 and for the second question the answer is 5 students

To solve -3 = -19 +d/5 , what steps would you use?

Answers

-3=-19+d/5
=-3+19=16
D=16•5
D=80


I’m not really sure but here. Hoped I was able to help you. :)

Solve the system by substitution.
y = -5x
y = -7x – 14
Submit Answer

Answers

Answer: (-7 , 25)

Step-by-step explanation: I graphed and that’s the point I got.

QUICK PLEASE ILL MARK YOU AS BRAINILST ONLY QUESTION 9

Answers

all I know is that it’s takes 3 minutes to ride a roller coaster one time so the constant of proportionality should be 3. Sorry I like half forget all of last year bc of the rona

Drag vegetables to represent each total weight shown.

Answers

Answer:

The tomato goes to the last box

The carrot goes to the middle box

The broccoli goes to the first box

Step-by-step explanation:

Which is correct equation , in slope intercept form , for the line described below?


x-intercept =-2
Y-intercept=6

Answers

Answer:

[tex]y=3x+6[/tex]

Step-by-step explanation:

Equation of the line

The equation of the line in slope-intercept form is:

[tex]y=mx+b[/tex]

Being m the slope and b the y-intercept.

We are given two points for the required line: The x-intercept is -2, thus the point is (-2,0), and the y-intercept b=6 represents the point (0,6).

Since the value of b is 6, we use the first point to find the slope:

[tex]0=m(-2)+6[/tex]

Solving:

m=3

The correct equation of the line is:

[tex]\boxed{y=3x+6}[/tex]

what is the equivalent to (2 − 5)2

Answers

Answer:

-6

Step-by-step explanation:

If Ryan gives 2/6 of his 36 cards to Max, how many cards does he give Max?

Answers

Answer:

Hi there

Your answer is

He gives Max 12 cards

Step-by-step explanation:

2/6 of 36

2/6 * 36/1

72/6=12

12 cards is 2/6th of 36 cards

Answer:

12

Step-by-step explanation:

(2 / 6) * 36= 12.

Which type of triangle will always have a perpendicular bisector that is also an angle bisector?
right
scalene
obtuse
equilateral

Answers

Answer:

D

Step-by-step explanation:

EDU 2020

The type of triangle which will always have a perpendicular bisector that is also an angle bisector is an equilateral. option D

How to determine the triangle

Properties of an equilateral triangle

All the three sides are equal.All three angles are congruent and measured  60 degrees.It is a regular polygon with three sides.The perpendicular line drawn from vertex of the equilateral triangle to the opposite side bisects it into equal halves and divides the angles into two.

Thus, the type of triangle which will always have a perpendicular bisector that is also an angle bisector is an equilateral. option D

Learn more about an equilateral triangle here:

https://brainly.com/question/1399707

#SPJ9

Biologist Dr. Cytoplasm wants to know how many elephants in the nature reserve have broken tusks . Of the 30 elephants that he observes in random places in the reserve, he counts 8 elephants with broken tusks. Of the 600 elephants in the reserve, how many can he expect to have broken tusks?

Answers

Answer:

Of the 600 elephants that he observes in random places in the reserve, he counts [tex]\frac{8}{30}(600)=160[/tex] elephants with broken tusks.

Step-by-step explanation:

Let x denotes number of elephants having broken tusks out of 600 elephants.

Of the 30 elephants that he observes in random places in the reserve, he counts 8 elephants with broken tusks.

So,

Of the 1 elephants that he observes in random places in the reserve, he counts [tex]\frac{8}{30}[/tex] elephants with broken tusks.

Therefore,

Of the 600 elephants that he observes in random places in the reserve, he counts [tex]\frac{8}{30}(600)=160[/tex] elephants with broken tusks.

A music club has 15 members. Each member pays monthly dues of $14.60. On the first day of the month, 8 members paid their dues. The remaining members paid their dues on the second day of the month. How much money was collected in dues on the second day of the month

Answers

Answer:

$102.2 were collected

Step-by-step explanation:

If there are 15 members in total, and 8 of them paid it on the first day, then you know that 7 people paid it the next day, because the remaining people paid it the next day.

7x14.60=102.2

If A = lw, find the width of a rectangle with a length of 30 miles and an area of 210 square miles.
O 70 miles
7 miles
o miles
6300 miles
10
11
12

Answers

Answer:

Yes and no nor

Step-by-step explanation:

What is the value of 19,356 ÷ 59?

Answers

Answer:

Approximately 328.067

Step-by-step explanation:

The value of 19,356 ÷ 59 is approximately 328.068.

Full Answer: 328.06779661

Given: Jennifer sings alto in the school choir. The choir has four voice parts. The female voice parts are soprano and alto. The male voice parts are tenor and bass. What conclusion can be drawn?
A Jennifer sings a female voice part in the choir.
B There are no basses in the choir.

Answers

A the answer is definitely A for sure

The answer is a

what is the value of x??

Answers

Answer:

[tex]\displaystyle 25 = x[/tex]

Step-by-step explanation:

You are given the angle of the whole set, so set both expressions equivalent to the given angle measure:

[tex]\displaystyle 166° = 66° + [4x]° \hookrightarrow \frac{100}{4} = \frac{4x}{4} \\ \\ \boxed{25 = x}[/tex]

I am joyous to assist you at any time.

Need help plz and thnks

Answers

Answer: y=13

hope this helps!

Solve for a. Show your work (ALL steps must be shown): 3(a+3)+6=30

Answers

Answer:

a = 5

Step-by-step explanation:

3(a+3)+6 = 30

subtract 6 from both sides

3(a+3) = 24

divide both sides by 3

a+3 = 8

subtract 3 from both sides

a = 5

Kevin started a ping pong club at his school, and the table shows the number of participants in the club over several years. Find the rate of change in the number of participants.

16 is not an answer for me on my assignment. What should I do?

Answers

I think I need more info?
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