solve 2x to the second power - 8x = -7

Answers

Answer 1

Answer:

[tex]x=4+\sqrt{2}/2, x=x=4-\sqrt{2}/2[/tex]

Step-by-step explanation:


Related Questions

see image help me as fast as possible, please, please 15 points

Answers

Answer:

Angle FCM is supplementary to angle ACM

Step-by-step explanation:

Supplementary angles are angles that equal 180 degrees

angle fcm is sup to acm

3) 36.3
Factors of 36
Factors of 3

Answers

Answer:

36 = 1 x 36, 2 x 18, 3 x 12, 4 x 9, or 6 x 6. Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36.

Step-by-step explanation:

What is the 11th term of the sequence
1, 2, 4, 8, 16, ...?

Answers

Answer:

1024

Step-by-step explanation:

16x2=32

32x2=64

64x2=128

128x2=256

256x2=512

512x2=1024

x= previous term multiplied by 2

hopefully this helps :)

What are the coordinates of point R?​

Answers

Answer:

The last one (-1,5)

Step-by-step explanation:

From (0,0), the R coordinate is one to the left meaning the x is negative and five up which means the y is positive 5 so... (-1,5) is the new location of R.

A teacher gives students the following math problem to solve: (4.20 – 1) × 5.6

Jo solves the problem with a calculator.

Bella solves the problem without a calculator.

Which statements are true? Check all that apply.

Jo’s method is more efficient because there are multiple decimal operations to perform.
Bella’s method could be used if she wanted to use estimation to check the reasonableness of Jo’s calculations.
Jo’s method is more efficient because some of the calculations cannot be done quickly by hand.
Bella’s method is more efficient because calculators should never be used in school.
Bella and Jo can both get the right answer to the problem.

Answers

Answer: A, E
Explanation: with a simple math problem like this a calculator is going to be more efficient. This, however, can be done by hand so each way can get to the right answer

Answer:

It is 1,2,3, and 5. hope this helps! :)

Step-by-step explanation:

Katie spent $148 at Target on shirts and jeans. The jeans cost $60 more than the shirts. How much did
she spend on shirts?

Answers

Answer;

$88

Step-by-step explanation:

148-60=88

148-60= 88

So she spent $88 on shirts and $60 on pants

yler's brother earns $12 per hour. The store offers him a raise— a 5% increase per hour. after the raise,how much will tyler make per hour

Answers

Answer:

$12.60

Step-by-step explanation:

12/100 × 12 = 0.60

12 + 0.60 = 12.60

Cheryl has 8 1/2 hours this weekend to work on her new video. She estimate it will take 2 1/4  hours to lip-synch the new song into 2 2/3 hours to learn the new dance steps. How much time will.she have left for her VTV interview?

Answers

9514 1404 393

Answer:

  3 7/12 hours

Step-by-step explanation:

The amount of time Cheryl will have is the difference between time available and time spent on other tasks.

  8 1/2 - 2 1/4 - 2 2/3

  = 8 6/12 - 2 3/12 - 2 8/12

  = (8 -2 -2) +(6/12 -3/12 -8/12) = 4 - 5/12

  = 3 7/12

Cheryl will have 3 7/12 hours left for her interview.

A video game is on sale for $25. This is 45% of the original price. What was the original price of the video game. Give a explanation (i will be marking brainliest)

Answers

Answer:

$36.25 is the original price

Step-by-step explanation:

$25= on sale

to find out the original price, multiply .45* 25, then add 25

.45*25=11.25

11.25+25=36.25

A​ man, a​ woman, and their four children randomly stand in a row for a family picture. What is the probability that the parents will be standing next to each​ other?

Answers

Answer:

Required probability = 2 / 11

Step-by-step explanation:

Sample space of 5 person = 11!

One woman one man arrangement = 2!

Arrangement without woman = 10!

Required probability = [2!][10!] / [11!]

Required probability = 2 / 11

The probability that the parents will be standing next to each​ other is 2/11

Probability is the likelihood or chance that an event will occur.

Probability = Expected outcome/Sample space

Given a woman, man and their four children, if their parents will be standing next to each other, that makes it 5 people. The sample space for 5 people is 11!

The parent arrangement is  2!If they are arranged without the woman, the expected event will be 10!

Pr(parents standing next to each other) =  2!10!/11!

Pr(parents standing next to each other) = 2*10!/11*10!

Pr(parents standing next to each other) = 2/11

Therefore the probability that the parents will be standing next to each​ other is 2/11

Learn more on probability here: https://brainly.com/question/25870256

Rewrite −x−6 with a positive exponent. Assume x is not equal to zero.

Answers

Answer:

= -1/x^6

Explanation:

Using the concept negative rule of exponents.

-x^-6 = -1/x^6

Will the solution to the following equation be positive or negative? b ÷ -2 = 5 positive negative

Answers

Answer:

I think that it is negative

Step-by-step explanation:

Brainliest to the right answer...

Answers

Answer:

14

Step-by-step explanation:

All you have to do is fill in the variables with the number it is.

e - 1/2f

15 - 1/2(2)

15 - 1

14

Hope this helps! If you have any additional questions please don't hesitate to ask me or your teacher to be sure you master the subject. Stay safe and please mark brainliest so I can move on the the next rank! :)

Answer:

14

Step-by-step explanation:

1/2 x 2=1

15-1=14

Karon has 16 friends he invited to his party. If each friend brings him 1.5 pounds of candy as his treat, how many pounds of candy will he get? Karon is surprised by the amount of candy he received. He wants to give half the candy away. How many pounds will Karon give away?

Answers

He will receive 24 pounds of candy.

thats a lot o.O

I WILL MARK BRAINLIST

Answers

Answer:e and f

Step-by-step explanation:

Point (a,b) is reflected about the x-axis. The resulting point is then reflected about the y-axis to produce a final point. Which transformation maps the original point directly to the final point?(1 point)

Answers

Answer:

A 180 degree rotation.

Step-by-step explanation:

I took the quiz.

How do we divide 31500 divided by 3

Answers

Answer:

10500 (hope this helps)

Answer:

10500

Step-by-step explanation:

Which value of x will make the fraction 10/x equivalent to 2/3?

I need this urgently!!!

Answers

Answer:

The value of x would be 15

Explanation:

10/x = 2/3

Cross multiply:

10 · 3 = x · 2

30 = 2x

30 ÷ 2 = x

15 = x

please help!!!!!!!!!​

Answers

You answer is D hope this helps

Which algebraic expression is equivalent to the expression below? 9(3x - 6) + 11x A. 16x + 54 B. 38x - 6 C. 16x - 54 D. 38x - 54

Answers

Answer:

D. 38x−54

Step-by-step explanation:

2218388 of the 4031887

Answers

Answer:

Boi what?

Step-by-step explanation:

This is not a proper question. You need to include more information

A single fair die is tossed. Find the odds in favor of rolling a number greater than 5

What are the odds in favor of rolling a number greater than 5?

Please help

Answers

Answer:

[tex]1 : 5\ or\ \frac{1}5[/tex]

Step-by-step explanation:

Given that:

A single fair die is tossed.

First of all, let us learn about a fair die.

A fair die is a 6 sided die numbered from 1, 2, 3, to 6 and each side has an equal probability of occurring OR we can say each side is equally likely to occur.

So, probability of rolling a number greater than 5 has only one possible outcome i.e. 6.

And total number of outcomes are 6.

So, probability of rolling a number greater than 5 = [tex]\frac{1}{6}[/tex]

Probability of not rolling a number greater than 5 = [tex]\frac{5}{6}[/tex]

Odds in favor of rolling a number greater than 5 = Probability of rolling a number greater than 5 : Probability of not rolling a number greater than 5

[tex]\dfrac{1}{6} :\dfrac{5}{6} = \bold{1:5}\ or\ \bold{\dfrac{1}{5}}[/tex]

Using the probability concept, the odds of rolling a number greater than 5 is 1 :5

The odd of a particular experiment is defined thus :

Number of possible outcomes greater than 5 : number of possible below or equal to 5

Sample space = {1, 2, 3, 4, 5, 6}

Outcomes greater than 5 = {6} = 1

Outcomes below or equal to 5 = {1, 2, 3, 4, 5} = 5

The odds equals to 1 : 5

Learn more : https://brainly.com/question/20388678

g(x) = 2x^3+ 2x^2– 4x – 9
find g(-3)

Answers

Answer:

-33

Step-by-step explanation:

I hope this is correct, and I apologize in advance if it isn't :(

Answer:

g(-3) = -33

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

g(x) = 2x³ + 2x² - 4x - 9

g(-3) is x = -3

Step 2: Evaluate

Substitute:                    g(-3) = 2(-3)³ + 2(-3)² - 4(-3) - 9Exponents:                   g(-3) = 2(-27) + 2(9) - 4(-3) - 9Multiply:                        g(-3) = -54 + 18 + 12 - 9Add:                              g(-3) = -36 + 12 - 9Add:                              g(-3) = -24 - 9Subtract:                       g(-3) = -33

6. Află termenul necunoscut
Un punct
a+ 5762= 8753
*
O
a= 2999
O
a= 2919
O
a= 2991​

Answers

Answer:

2999

Step-by-step explanation:

a coz terminal nenu .

add by that

Answer:

a... Is.... 2991.....

A person begins with $1500 in her savings account. She deposits $40 per month. Let N represent the number of months she has the account. Let A represent the amount in dollars in the account

Answers

Answer:

1500+40N=A

Step-by-step explanation:

40 per month (N) plus the initial amount = $ in account (A)

If the area of a circle measures 25 pi cm², what is the circumference of the circle in terms of pi?

Answers

Answer:

10π cm

Step-by-step explanation:

Given

Area of the circle=25π cm^2

Solution

πr^2=25π

r^2=25

r=√25

r=5

So circumference of the circle=2πr

=2π×5

=10π cm

So the answer is 10π cm

What are the like terms in the expression?

4 m minus 9 + 3 n + 2
–9 and 2
–9 and 3n
4m and 3n
4m and –9

Answers

Answer: –9 and 2

Step-by-step explanation:

It’s -9 and 2 because they’re both constant terms

You are selling books for $4 each to raise money for a trip. You have to pay $10 for the table. Write a rule for the amount of books sold (b) and total amount of money earned(t). Your answer should not have any extra spaces.

Answers

Answer:

4b=y-10

Step-by-step explanation:

Sierra, an Event Planner for Hilton, has group medical insurance with an annual premium of $8,245. Her employer pays 74%. If she is paid semi monthly, a) what is her portion of the annual premium? b) her medical insurance deduction per pay period?

Answers

9514 1404 393

Answer:

$2,143.70$89.32

Step-by-step explanation:

If 74% is paid by Hilton, then Sierra pays 26% of $8245 per year. Her annual share is ...

  0.26 × $8245 = $2143.70 . . . Sierra's share

__

Then the deduction in each of her 24 pay periods is ...

  $2143.70/24 = $89.32 . . . per pay period

"The poker hand straight consists of five cards having consecutive denominations (but can have varying suits). What is the probability to be dealt a stright from a deck of 52 cards

Answers

Answer:

The probability of dealing with a straight from a deck of 52 cards = 0.00394

Step-by-step explanation:

An ace must occur to have a straight, the Ace can either be high or low which can appear at the beginning or near the end. The rank of straight for an ace to occur range from 2,3,4,5,6,7,8,9,10.

If a suit is already at hand, and we have the opportunity to select four suits.

The number of possible straight = 4⁵ × 10

= 10240

Thus, the probability to deal with a straight = [tex]\dfrac{10240}{^{52}C_5}[/tex]

The probability to deal with a straight = [tex]\dfrac{10240}{\dfrac{52!}{5!(52-5)!} }[/tex]

The probability to deal with a straight = [tex]\dfrac{10240}{\dfrac{52!}{5!(47)!} }[/tex]

The probability to deal with a straight = [tex]\dfrac{10240}{2598960}[/tex]

The probability to deal with a straight = 0.00394

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If a DNA strand has 33 % cytosine what percent will be adenine? 64 %32 %17 %36 % 2. Which of the following combinations is true of the nucleotide composition of a sample of DNA? A = CA = G AND C = TA + C = G + TG + C = T + AHow do you know? Imagine guanine is 30% of the DNA sample. In your notebook, revise the mathematical model you chose in your answer now that you have this information.