The solutions to the equation 2x2+x-1=2 are x=-3/2 or x=_

Answers

Answer 1

Answer:

the solutions are {1, -3/2}

Step-by-step explanation:

The given equation 2x^2 + x - 1 = 2 simplifies to 2x^2 + x - 3 = 0 if we subtract 2 from both sides.

We are told that -3/2 is a solution and must find the other solution To do this, use synthetic division; if the remainder is zero, that tells us that -3/2 is actually a solution, and we can obtain the second solution easily, as follows:

-3/2 / 2 1 -3

-3 3

-------------------------

2 -2 0

Since the remainder is 0, we have verified that -3/2 is a solution. The coefficients of the other factor of the original equation are 2 and -2, and so this other factor is 2x - 2, or 2(x - 1). Setting this result equal to zero yields x = 1.

Thus the solutions are {1, -3/2}.

Answer 2

Answer:

Step-by-step explanation:

Took the Test edge 2021

Related Questions

Is 1,815 a rational number?

Answers

If a number can be represented by a fraction, it is a rational number. So yes, 1815 is a rational number

Answer:

The square root of 1815 is a rational number if 1815 is a perfect square. It is an irrational number if it is not a perfect square. Since 1815 is not a perfect square, it is an irrational number.

Step-by-step explanation:

I comfirmed this, it’s most likely right! (;

On Monday morning Sergio Pappas had $14.78 in cash. During the week he earned $45.00 for cutting lawns and $35.75 for yard work, and he spent $25.23 on food and $22.12 on gas.

# Problem Solution
a. What were Sergio’s total earnings for the week?
b. What total amount did he have to spend during the week?
c. What was his balance at the end of the week?

Answers

Answer:

A- 95.53 $ B- 47.35 $ C- 48.18 $

Step-by-step explanation:

45.00+35.75=80.75 (The money Sergio Pappas earned by working.) 80.75+14.78=95.53 (Sergio Pappas money earned by working + initial money.)25.23+22.12=47.35 (Total money lost by Sergio Pappas.)95.53-47.35=48.18 (Total money left by Sergio Pappas over the weekend.)

I tried to explain and help as best I could. I hope you understand. Good luck!

Answer:

A- 95.53 $ B- 47.35 $ C- 48.18 $

Step-by-step explanation:

For a certain race, 4 teams were allowed to enter 3 members each. A team earned 9 – n points whenever one of its members finished in nth place, where 1 ≤ n ≤ 8. There were no ties, disqualifications, or withdrawals. If no team earned more than 10 points, what is the least possible score a team could have earned?

A) 0

B) 1

C) 2

D) 3

E) 4

Answers

Answer:

D. 3 Points

Step-by-step explanation:

Given

[tex]Members = 3[/tex]

[tex]Point = 9 - n[/tex]

[tex]1 \leq\ n \leq 8[/tex]

Required

Determine the least possible score

The least point a member of a team can get is when n = 8.

i.e.

[tex]Point = 9 - n[/tex]

[tex]Point = 9- 8[/tex]

[tex]Point = 1[/tex]

To get the least score, each of the 3 members must have 1 point each.

So:

[tex]Total = 3 * 1[/tex]

[tex]Total = 3[/tex]

I need helppp!!!!!!!!!

Answers

Answer: 0.5 and 9

Explanation:

6x + 1 _> 4
6x _> 3
x _> 1/2

-2x + 8 > -12
-2x > -20
x < 10

Thus, 1/2 <_ x < 10 meaning that x is bigger or equal to 1/2 but less than 10.

And if we look at our choice we see that 0.5 and 9 meets the condition

Solve 210 ÷ 30 = ___ using mental math.

7
70
700
7,000

Answers

The answer would be 7

Answer:

-by-step explanation:

none needed just do it in your head like 21 devided by 3=7

(Help!!)Select all the true statements.

Answers

Answer:

the first choice, the second choice, and the last choice

Step-by-step explanation:

5 and 6 because they are alternate angles

2 and 3 because they are corresponding angles

2 and 4 because they are corresponding angles

If 247 players separated into 13 equal teams, how many players will be on each team?

Answers

247 divided by 13 = 19 so there will be 19 players on each team

Ben bought 1 2/3 pounds of jelly beans and 2 3/8 pounds of jolly ranchers. What are the total pounds of candy that Ben bought?

Answers

Answer:

4 1/24

Step-by-step explanation:

1 2/3 +2 3/8 = 5/3 +2 3/8 = 5/3 + 19/8 = 97/ 24 =4 1/24

What is –96 ÷ +3? im a little confused when it comes to math

Answers

It’s -32
You’d do 96 divided by 3 with long division and put - in front of the answer

A lemonade recipe calls for the juice of 5 lemons, 2 cups of water, and 2 tablespoons of honey.
Invent four new versions of this lemonade recipe:

1) One that would make more lemonade but taste the same as the original recipe.
2) One that would make less lemonade but taste the same as the original recipe.
3) One that would have a stronger lemon taste than the original recipe.
4) One that would have a weaker lemon taste than the original recipe.
Pls, I'm struggling right now lol.

Answers

Answer:

1. 10 lemons, 4 cups of water and 4 tablespoons of honey

2. 2 1/2 lemons, 1 cup of water and 1 tablespoon of honey

3. 8 lemons, 2 cups of water and 2 tablespoons of honey

4. 2 lemons, 2 cups of water, 2 tablespoons of honey

Answer:

10 lemons, 4 cups of water, 4 tbspoons honey

2 1/2 lemons, 1 cup water, 1 tbspoon honey

7 lemons, 2 cups of water, 1 tbspoon honey

3 lemons, 2 1/2 cups of water, 2 tbspoons honey

Step-by-step explanation:

Can I have Brainliest??? Please!!!

What is 2 + 2, minus 4?

Answers

Answer:

Step-by-step explanation:

2 + 2 = 4 and then 4 - 4 = 0

Answer:

Step-by-step explanation:

2 + 2 - 4 =

4 - 4 =

Hope this helps.

- 71 = x/64

One step

Answers

Answer:

x=-4544

Step-by-step explanation:

- 71 = x/64

Multiply each side by 64

- 71 *64 = x/64 *64

x=-4544

Answer:

x=−4544

Step-by-step explanation:

10. 2x =3 - 4y
Contains the point (-4,3)

Answers

Answer:

I don’t know what you’re trying to find but that equation does not contain the point.

Step-by-step explanation:

Choose the best representation 8/11

Answers

Ya where are the options....?

can someone help me pleaassee

Answers

Answer:

The slope is 1/4.

Step-by-step explanation:

M = Y2 - Y1

X2 - X1

M = 6 - 2

9 - (-7)

M = 4

M = 1

PLEASE ANSWER AS SOON AS POSSIBLE
The cost of 4 peaches is $4.96. What is the constant of proportionality that relates the cost in dollars, y, to the number of peaches, x? Write the corresponding linear equation.

Answers

4x (4 peaches) = 4y (4.96$)
x (4/4 peaches=1) = y (4.96$ / 4 = 1.24$)
y f(x) = 1.24$

True or False: In order to solve the equation below, you would add 6 to each side then
multiply by 8 on each side.
g/8- 6 = -12

Answers

I believe you would add 6 to both sides then divide by 8 instead of multiplying

Express 30 ^1/3 in simplest radical form.

Answers

Answer:

Step-by-step explanation:

PLEASE ANSWER QUICK WILL MARK BRAINLIEST

Answers

Answer:

1) A = 80

2) A = 30

Step-by-step explanation:

1) x+50 + 80 + x + 70 = 180

2x+120 = 180

2x = 60

x=30

A = (30) + 50

A = 80

2) x+40 + x+90 + (180-110) = 180

x+40 + x+90 + 70 = 180

2x + 200 = 180

2x = -20

x = -10

A = (-10) + 40

A = 30

The rental fee for space at a flea market is $200 per month base rate
plus an additional $10 for each square yard of floor space beyond the
standard area of 12square yards. The total fee can be modeled using the
equation in the box, where "F" represents the fee, and "x" represents the
number of square yards rented beyond the standard area. What is the
most reasonable meaning of the number 10 in this equation?

Answers

Answer:

anor soi sena orka uzumo senda?

Write the word sentence as an equation. Then solve.

The product of 15 and a number x is −75.

Equation:

Solution: x=

Answers

Answer:

As an equation: 15 × x = -75

Solved: x = -5

Step-by-step explanation:

15*x = -75

[tex]\frac{15*x}{15}[/tex] = [tex]-\frac{75}{15}[/tex], Divide by 15 on both sides to solve for x

x=[tex]-\frac{75}{15}[/tex], The 15 in the numerator cancels out with the denominator

x= -5, because 75/15=5

Equation: (-5)(15) = -75

Solution : (x)(15) or (written as, x times 15 )= -75
For x= -5 ( substitute x into -5)
(-5)(15) or written as, negative 5 times 15= -75

Finn looked at 2 websites every 18 hours. At that rate, how long, in
hours, will it take to look at 4 websites? Plz help

Answers

Answer: 1 day, 12 hours (36 hours)

Given that Finn looked at 2 websites every 18 hours, let's solve the problem.

Multiply by 2, because he looks at 4 websites, and 2 x 2 = 4.

18 x 2 = 36.

The answer should be 36. Hope this helps you!

Could someone help me to understand this please? It would mean a lot

Answers

Answer:

A: AD

B: 25x15=375

Step-by-step explanation:

A: AD is parallel because the lines are the same.

B: AB = 25mm

BC = 15mm

25x15 = 375mm

The image below is for reference to Question B.

(15) The ratio of boys to girls at the school is 3:5. If there are 160 students at 1 point the school, how many of them are girls? (Do not include any words in your answer.) Your answer

Answers

Answer:

100

Step-by-step explanation:

160 * (5/8) = 100

Can someone pls help me on this

Answers

Answer:

41.309 kg, 41.32 kg, 41.236 kg

Step-by-step explanation:

I think these are the correct answers.

I need help plz someone help me plz :(

Answers

I’m sorry if this is wrong but since there are 60 minutes in an hour multiply 5•60 = 300+ 300 since there are 2 hours and if she gets a cracker each time maybe 120

What would be the fundraiser money kept if they sold 10 t-shirts?

Answers

How much did the t-shirts cost?

Solve for b.
ab +c=d

Answers

Answer: B = [tex]\frac{-c}{a}[/tex] + [tex]\frac{d}{a}[/tex]

Step-by-step explanation:

you need to get B alone so that would be subtracting everything around it

ab = -c + d

then you need to get that a away from it by dividing both sides by A

B = [tex]\frac{-c}{a}[/tex] + [tex]\frac{d}{a}[/tex]

Samuel buys office supplies for his home business. The office supplies cost $175.79 before taxes. The sales tax rate is 8.25%. What is the amount of sales tax Samuel will pay?

Answers

Answer:

175.79* .0825 = 14.50 + 175.79 = 190.29 $190.25

Step-by-step explanation:

The amount of sales tax Samuel will pay is $14.50

Sales tax rate

Given the following information

cost of office supplies = $175.79 sales tax rate = 8.25%

Get the amount of sales tax:

Amount of sales tax = 8.25% of $175.79

Amount of sales tax = 0.0825 * 175.79

Amount of sales tax = $14.50

Hence the amount of sales tax Samuel will pay is $14.50

Learn more on sales tax here: https://brainly.com/question/9437038

the graph shows the cost of joining a gym in town a

Answers

Answer:

which graph?

Step-by-step explanation:

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