Solve for x in the equation 2x2 + 3x-7 = x2 + 5x+39

Answers

Answer 1

Answer: x=1+√47 or x=1−√47 (Assuming that the "2x2" is 2x^2)

Step-by-step explanation:

Step 1: Subtract x^2+5x+39 from both sides.

2x2+3x−7−(x2+5x+39)=x2+5x+39−(x2+5x+39)

x2−2x−46=0

For this equation: a=1, b=-2, c=-46

1x2+−2x+−46=0

Step 2: Use quadratic formula with a=1, b=-2, c=-46.

x=1+√47 or x=1−√47

Answer 2

Answer:

The reviews upon the bottom and such were confusing, but for the edge test, the answer is ;

d. x = 1 +/- _/47

Step-by-step explanation:

edg- answers ;p


Related Questions

Use the formula o = 7 to find the value of the missing variable 5 radians per sec, t= 9 sec = (round to the nearest thousandths)​

Answers

Answer:

[tex]o = 9 \times \frac{5\pi}{9} \\ [/tex]

[tex]o = 5\pi = 15.71[/tex]

jose has a wedge shaped piece of wood as shown in the diagram. jose plans to paint the piece of wood and must determine how much paint he needs.

Answers

Answer:

There is no diagram. If you repost the question, I may be able to help you

Step-by-step explanation:

Answer:

No diagram

Step-by-step explanation:

Let R be the region bounded by the following curves. Use the method of your choice to find the volume of the solid generated when R is revolved about the​ x-axis. y = 6x^2 & y = 28 - x^2

Answers

Answer:

V = 7168π /3  

Step-by-step explanation:

R ( region ) bounded by curves ; y = 6x^2 , y = 28 - x^2

determine the volume of the solid generated when R is revolved about the x-axis

 Volume = 7168π /3    

attached below is the remaining part of the detailed solution to the problem above

Given that :

y = 6x^2----- ( 1 )   ,  y = 28 - x^2 ------ ( 2 )

equate  ( 1 ) and ( 2 )

6x^2 = 28 - x^2

7x^2 = 28

∴ x = √4 = ± 2

HELPPPP PLEASE!!!!!!!!!!!!

Answers

Answer:

C

Step-by-step explanation:

7 - 2 = 5

11 - 3(2)

11 - 6 = 5

4(2) - 3

8 - 3 = 5

C is the only one that doesn't equal 5

Help please!(10 points)

Answers

Answer:

Each friend gets 3/4 of a fruit bar

Step-by-step explanation:

The answer is b hope this helps!

what is the inequalities x<3

Answers

Step 1 Eliminate fractions by multiplying all terms by the least common denominator of all fractions.

Step 2 Simplify by combining like terms on each side of the inequality.

Step 3 Add or subtract quantities to obtain the unknown on one side and the numbers on the other.

hope this help you... :) and have a good day

Answer:equal to y

x is equal to y. Where as in an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥. x>y. x is greater than y.

Step-by-step explanation:

What is the slope of the line in the graph?
X
Please help

Answers

Answer: slope is 1

Step-by-step explanation:

Can someone help me and show your work thank you

Answers

Answer:

$120

Step-by-step explanation:

I = Prt

P = 200

r = 0.12

t = 5

I = 200(0.12)(5)

I = 120

Find the missing angle according to the Triangle Exterior Angle Theorem

Answers

Answer:

x = 105 degrees

Step-by-step explanation:

First, figure out the interior angle, we can do this ading the two angles and then subtracting the sum from 180 (since the interior angle of a triangle adds up to 180 degrees)

180 - (55 + 50) = 75

next, we can figure out x by taking the sum (75) and subtracting that from 180 since it is a supplementary angle:

180 - 75 = 105

x = 105

Answer:

105 degrees!

Step-by-step explanation:

all the angles in a triangle must add to 180.

50+55= 105

therefore, the missing angle would be 75

x+75 must also add to 180 so the answer would be: 105 because 75+105= 180

Hope this helps!!

What is the vertex of the quadratic function: y=1/2(x-3)2+8?

(3,8)

(-3,-8)

(-3,8)

(3,-8)

Answers

Answer:

(3,8)

Step-by-step explanation:

THIS IS AN EXAMPLE FOR ANY PROBLEM!!

Get the equation in the form y = ax2 + bx + c.

Calculate -b / 2a. This is the x-coordinate of the vertex.

To find the y-coordinate of the vertex, simply plug the value of -b / 2a into the equation for x and solve for y. This is the y-coordinate of the vertex.

- Good luck!

1

3

This week Andres will practice with his band for 15 hours on Monday, 1 - hours on Tuesday, and 2

2

4

hours on Wednesday. Next week Andres will practice with his band for the same number of hours

on Monday, Tuesday, and Wednesday.

What is the total number of hours Andres will practice with his band over these 6 days?

Answers

Answer:

[tex]Total = 104\ hrs[/tex]

Step-by-step explanation:

Given

[tex]Monday = 15\ hrs[/tex]

[tex]Tuesday = 13\ hrs[/tex]

[tex]Wednesday = 24\ hrs[/tex]

Required

Determine the hours of practice over 6 days

First, we calculate the hours for the given 3 days.

[tex]Hours = Monday + Tuesday + Wednesday[/tex]

[tex]Hours = 15\ hrs + 13\ hrs + 24\ hrs[/tex]

[tex]Hours = 52\ hrs[/tex]

The hours of practice for the other three days is also 52 hours.

So, the total is:

[tex]Total = 52\ hrs + 52\ hrs[/tex]

[tex]Total = 104\ hrs[/tex]

Answer:

104

Step-by-step explanation:

Brainlyst for the best answer thank you!

Answers

Answer: B

We all know that area= LxW
The width that is being shown is 8ft. The length is 20ft. Therefore, you multiply 8 x 20 which gives you 160ft squared. Hope this this helps :)

A merchant buys a Car for 1000$ and sells it for 100$ what is the percent of markup?

Answers

Why would they buy a car for 1000 and then sell it for 100 there is no markup

What is the area of the polygon given below?
11
6
A. 66 square units
B. 55 square units
C. 131 square units
O D. 186 square units

Answers

Answer:

The answer is A have a good day

Step-by-step explanation:

A rectangular garage has an area of 42 square meters and a perimeter of 26 meters. What are the dimensions of the garage?

Answers

Answer:448

448

Step-by-step explanation:448

On his math homework assignment, Steven solved six problems correctly 2 points
and eight problems incorrectly. Write a ratio comparing his correct
answers to incorrect answers. Write a ratio comparing his incorrect
answers to the total number of problems. *
WHO EVER ANSWERS I WILL MARK BRAINLIEST

Answers

Answer:

6:8 and 8:14

Step-by-step explanation:

What's the question? The answer is 32/3

Answers

Answer:

10.67 or 10.7

Step-by-step explanation:

32/3= 10.67 or 10.7

Answer:

10.6666666667 converted into a fraction (sorry if im wrong)

Step-by-step explanation:

Mareo bounces a basketball 45 times in 55 seconds. At that rate,
approximately how many times will Marco bounce the ball in 150
seconds?

Answers

I’m sorry I didn’t know that you were going to be in there until about it later this week and then he came back and forth

Everything is in the picture PLEASE HELP me ASAP and I'll give you the BRAINLIEST PLS IM BEGGING ​

Answers

Answer:

21.5cm²

Step-by-step explanation:

First you find out the Area of the square itself which is 100cm² (squared). Then you Find the Area of the circle. The formula to find the area of a circle is  π  × Radius². So you find the diameter of the circle (which is 10) and divide that by 2 to find the radius. So the radius is 5 but then you need to square 5 which is 25. Then you multiply 25 with pi which is 78.5 so the area of the circle is 78.5cm². Now what you have to do is subtract the area of the square and the area of the circle to find the area of the shaded region. 100-78.5 is 21.5cm ² and that is the answer.

Solve and check the equation.
3(2y - 5) = 5(y + 4)

Answers

Use math-way to solve and check, it gives you all the answers, with a small explanation.

Answer:

y=35

Step-by-step explanation:

3(2y - 5) = 5(y + 4)

6y - 15 = 5y +20

6y - 5y = 20 + 15

y = 35

In which quadrant the values of x and y both negative.

Answers

Answer:

The Answer should be Quadrant III

Step-by-step explanation:

Hope this helped!

HELP! WILL GIVE BRAINLIEST!

Answers

Answer:

w+w+w+w=p

w x4=p

Explain how you can use multiplication to find the volume of the figure. Then find the volume.

Answers

Answer:

To find the volume, you multiply length times width times height.

3x2x4

voluume = 24

Step-by-step explanation:

Answer: You can use multiplication by as shown below:

(Base) Height

(L*W)H

(3*2)4

(6)4

VOLUME = 24units^3

I show the formula, substitution, and the answer for you.

Please mark the brainliest I would appreciated very much and I hope this helps you, and I hope you learn from this. :)

why do bank charge transaction fees?​

Answers

Answer:

To make a profit and pay operating expenses, banks typically charge for the services they provide. When a bank lends you money, it charges interest on the loan. Even fee-free checking and savings accounts have some fees. ...

To make a profit and pay operating expenses, banks typically charge for the services they provide. When a bank lends you money, it charges interest on the loan. Even fee-free checking and savings accounts have some fees. ...

Solve the system of equations by any method you choose
-4x-2y=-2
-9x+3y=3

Answers

Answer:1. Use substitution to solve the system of equations:

   -x + 2y=7

    x - 3y = 3

2. Solve the system of equations by the elimination method

a.  2x+ y = -17

   x - y = 2

b. 3x + y = -15

  x + 2y = -10

Answer:

(0, 1)

Step-by-step explanation:

You can solve this by using the substitution or elimination method. For this problem, I'm going to use the substitution method. First, rewrite -4x-2y=-2 in slope-intercept form, which would be y=-2x+1. Substitute the y value in -9x+3y=3 (which would be -9x+3(-2x+1)=3) and solve.

-9x+3(-2x+1)=3

-9x-6x+3=3

-15x=0

x=0

Now, substitute the x value in for the x in any equation. You can do -4(0)-2y=-2 or -9(0)+3y=3. I'm going to use -9(0)+3y=3.

-9(0)+3y=3

3y=3

y=1

Which equation is the standard form equation of the line that passes through the point (-2, 0) and has a slope of 4?
A 4x - y = -2
B 4x - y = 8
C 4x - y = -8
D 4x + y = -8​

Answers

The answer is C.
4x-y=-8
-y=-4x-8
y=4x+8

y=4x+8
0=4x+8
-8=4x
-2=x

please help me!!! thank you!!!!

Answers

480,, I think this is the correct answer.

Expand the Logarithm

Answers

Step-by-step explanation:

The power can come to the front according to logarithm rule.

Mia is going on a 238-mile bicycle trip. If she rides 14 miles each day, how many days will it take her to finish the trip?

A 12 days

B 14 days

C 17 days

D 18 days

Answers

Answer:

17 days

Step-by-step explanation:

238/14 = 17

Please Help me !!!!!!

Answers

Ok so I’m going to try my best:
I’m guessing you would do $960 times 6.1 but you move the decimal point twice to the left which would be: .061
This is how we find out each month
58.56
So, we start out with $960 we keep adding 58.56 or to do faster we can multiply
Adding 58.56:
1 = 1018.56
2 = 1077.12

Multiplying 58.56 by 13:
KEEP IN MIND THAT WE START FROM $960 and we need TO GET TO $1,720
58.56 times 13 equals 761.28
Then we add
960 + 761.28
1721.28

So it would have to be 12 months since it needs to be less or “to the nearest year”
Therefore, the answer would be a year

I hope this helps! :) good luck


It’s 12 months I think I’m sorry if it’s wrong.
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