X^2- 2x - 54 = 0

I need the answer to this please

Answers

Answer 1

x = 1 + √ 55 , 1 − √ 55 or

x = 8.41619848 , − 6.41619848


Related Questions

What is the length of side s of the square shown below?
45
90°
A. 2-2
B. 2
C. 42
O D. v2
E. 1
O F. 4

Answers

Answer:

D. √2

Step-by-step explanation:

Solve for x by applying trigonometric ratio.

Reference angle = 45°

Hypotenuse = 2

Adjacent side = s

Thus:

Cos (45) = adj/hyp

Cos (45) = s/2

2×Cos(45) = s

2 × √2/2 = s (cos (45) = √2/2)

√2 = s

s = √2

Write the word sentences as an inequality.

A number b is at least -3.

An inequality that represent this word sentences is?

Answers

b >_ -3
the inequality is supposed to be the greater than or equal to

Answer:

b >= -3

Step-by-step explanation:

The b is at least meaning that it can also be equal to -3.

help asap, will give brainliest! x

Answers

1 is bigger so it will be the 4th square

Answer:

<

Step-by-step explanation:

there ya go :) hope that helps youuu

btw you're doing great on that :D

Jack is growing Red wiggler worms to help make compost. He measured the lengths of two young worms. The 10- day old worm is 10/12 inch long. The 20-day old worm is 1 4/6 inches long. About how much longer is the 20- day old worm than the 10-day old worm? Explain how you found your estimate. 1

Answers

Answer:

Answer: The 20-day old worm is inches more longer than the 10-day old worm. If someone says the same thing as me, they copied me—

Step-by-step explanation:

can i get a brainliest-?


5
7

2
+
7

=
1
1
1

Answers

Answer:

Step-by-step explanation:

57-2=55

55+7=62

it does not equal 111

at a school there are 10 students taking only chemistry, 9 students taking only physics 5 students taking both, and 16 students not taking either. if a student is randomly selected from the other school, what is the probability that they are taking chemistry or physics?

Answers

Answer:

If there are 10 students taking only chemistry, 9 students taking only physics, and 5 students only taking both chemisty and 16 students are taking neither; I would add 10+9+5+16=40 (total students) and divide 10/40 (25% chemistry) 9/40 (22.5% physics) 5/40 (12.5% both) 16/40 (40% neither)

Step-by-step explanation:

1. Determine a single event with a single outcome.

2. Identify the total number of outcomes that can occur.

3. Divide the number of events by the number of possible outcomes.

Answer:

3/5

Step-by-step explanation:

Solve for n:
3(2−8n)=3n+6

Select one:

-15

5

-5

0

Answers

n=0 bc you remove the parentheses, cancel the equal terms what would be 6 being cancel it would look like -24n=3n now and move the variable to the left collet like terms and then you will divide the sides. Your answer is 0

Which is a true statement?

Answers

Answer:

A

Step-by-step explanation:

-18 is an integer and a whole number

Madison has test scores of 93, 82, 86, and 75. What is the mean?
answer as fast a possible

Answers

Answer:

Mean is 84

Step-by-step explanation:

HELP ME I need help with a 7th grade math test anyone willing to help me

Answers

Answer: A: x= -3 B: x= 7/3 C: x= 11/2 D: 58 1/3

for the first 4 questions

For #5 the red ones slope is -2 and the y-Int is 1. For the blue one the slope
Is 1/2 and the y-int is 3. And for the green one the slope is -2/3 and the y-Int is -4

Based on the completed table above what is the value of f? ​

Answers

Answer:

0

Step-by-step explanation:

Answer:

0 is the best answer.

Step-by-step explanation:

In addition to his hourly rate, Mr. Smith is paid $2.20 for each watch he fixes. Write an expression for his income if he fixes r watches per hour?9.5 is hourly rate.

Answers

Step-by-step explanation:

y = hourly income

r = number of watches fixed

equation: y = 2.20r + 9.5

Gentry Industries has the following information about maintenance costs in the past six months.
Month Machine _Hours Amount
January 200 $2,800
February 350 3,000
March 450 4,000
April 500 5,000
May 600 5,200
June 580 5,800
How much would Gentry pay if maintenance machine hours are 550?

Answers

Answer:

Total cost= $5,425

Step-by-step explanation:

Giving the following information:

Month Machine _Hours Amount

January 200 $2,800

February 350 3,000

March 450 4,000

April 500 5,000

May 600 5,200

June 580 5,800

First, we need to calculate the fixed and variable costs. To do it, we will use the high-low method:

Variable cost per unit= (Highest activity cost - Lowest activity cost)/ (Highest activity units - Lowest activity units)

Variable cost per unit= (5,800 - 2,800) / (600 - 200)

Variable cost per unit= $7.5 per hour

Fixed costs= Highest activity cost - (Variable cost per unit * HAU)

Fixed costs= 5,800 - (7.5*600)

Fixed costs= $1,300

Fixed costs= LAC - (Variable cost per unit* LAU)

Fixed costs= 2,800 - (7.5*200)

Fixed costs= $1,300

Now, we can determine the total cost for 550 hours:

Total cost= 1,300 + 7.5*550

Total cost= $5,425

150 into the ratio 4:11

Answers

9514 1404 393

Answer:

  40 : 110

Step-by-step explanation:

There are a number of ways you can go at this. One of my favorite is to consider the value of a "ratio unit." Here, a total of 4+11 = 15 "ratio units" represent the total to be divided: 150. So the value of each one is ...

  150/15 = 10

Then the division is ...

  4 : 11 = 10·4 : 10·11 = 40 : 110

_____

Alternate solution

Let x represent the larger share. Then the ratio is ...

  (150 -x) : x = 4 : 11

Cross-multiplying gives ...

  11(150 -x) = 4x

  1650 = 15x . . . . . add 11x, simplify

  110 = x . . . . . . . . . divide by 15; the larger share

  150-x = 150-110 = 40 . . . . . . the smaller share

The division is 40 : 110.

Ken earned $128 from his part-time job this summer. He spent 25% of his money on games. He is going to donate 1/6 of the remaining money to charity. How much will the charity receive?

A) $15
B) $16
C) $32
D) $80

Please explain how to do it also

Answers

Answer:

B) $16

Step-by-step explanation:

Alright so first you want to take the total amount of money made :

$128

Next you want to find 25% of this number (or 1/4) and subtract it from the total.

So :

128 / 4 = 32

So now we take 128 and subtract 32. (32 = 1/4 or 25% of 128)

128 - 32 = 96

Ken now has $96 left over after spending money on games.

So now that we have this number we need to find 1/6 of it because he took 1/6 of the money after he bought games and put it towards charity.

So :

96 / 6 = 16

16 is equal to 1/6 of his leftover money after games and is the amount the charity received.

B) $16

I hope this helps! :)

If you are confused or have any questions please comment or dm and I would be happy to help.

Also change the pfp FeelsGoodMan

Answer:

B) $16

Step-by-step explanation:

1. First let's find how much he spent on games. Multiply 0.25 to 188. 0.25 x 128 = 32.

2. Now subtract that amount from the original $128.  128 - 32. = 96.

3. Then, multiply 1/6 from 96. 1/6 x 96 = 16. This $16 is the amount the charity will receive.

What is the area and circumference of the circle?

Answers

9514 1404 393

Answer:

area: 36π ≈ 113.1 . . . . square unitscircumference: 12π ≈ 37.7 . . . . units

Step-by-step explanation:

The area formula is ...

  A = πr^2

  A = π(6^2) = 36π ≈ 113.1 . . . . square units

__

The circumference formula is ...

  C = πd

  C = π(12) = 12π ≈ 37.7 . . . . units

A oil well is drilled at -175 meters ever 12 hours . How deep is the well after 15 hours of constant work. Numeric answers only

Answers

Answer:

-37.5 m

Step-by-step explanation:

If we assume that "one full day" is 24 hours, then 15 hours represents the fraction 15/24 of a day. Since the drilling rate was constant, and was presumed to start from a height of 0, the height after 15 hours is that fraction of the day's work:

... (15/24)×(-60 m) = -37.5 m

Answer:

-218.75

Step-by-step explanation:

you probably don't need the answer anymore but I still thought I should put it out there

There are 31 students in a class.
The only languages available for the class to study are French and Spanish.
17 students study French.
15 students study Spanish.
6 students study neither French nor Spanish,
Using a Venn diagram, or otherwise, work out how many students study only one
language.

Answers

Answer:

24 students where studying one language

Step-by-step explanation:


Which graph represents this system?
3x+2y=-6

y=-3/2x+2

Answers

Answer: look at the picture

Step-by-step explanation: hope this help:)

Andre has a puppy that weighs 9 pounds the vet says the puppy is now at 30% of its adult weight what will the adult weight of Andres puppy be

Answers

30% times by x is 9. (x is the number we’re trying to figure out) another way to put this equation is 30/100 times x = 9. now let’s multiply both sides by 100 and divide both sides by thirty. we have x = 9 times 100/30. so the answer is 30. the puppy’s full weight is 30 pounds. hope this helps :)

The adult weight of the puppy of Andre puppy be 30 pounds.

What is a percentage?

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

Andre has a puppy that weighs 9 pounds.

The vet says the puppy is now at 30% of its adult weight.

Let n pounds be the weight of an adult.

Using the percentage formula,

9 = 30 x n /100

n = 900/30

n = 30 pounds

Therefore, adult puppy weight is 30 pounds.

To learn more about the percentage;

https://brainly.com/question/24159063

#SPJ2

Will mark brainliest!!

The graph shows Wilson's science scores versus the number of hours spent doing science homework.



What will most likely be Wilson's approximate science score if he does science homework for 6 hours a week?

33 points
42 points
52 points
55 points

Answers

Answer:

55 points

Step-by-step explanation:

equation is close to y = 7.1x + 15

y = 7.1(6) + 15 comes closest to 55

18 cheeseburgers is 45% of how many cheeseburgers?

Answers

Answer:

40 cheesburgers

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

45% is 9/20

18 cheeseburgers is 9/20 of all the cheese burgers

36 cheeseburgers is 18/20 of all the cheeseburgers

40 cheese burgers is 20/20 of all cheeseburgers

12. Suppose a reward for a CS follows a probabilistic schedule. If the probability of receiving the reward increases then: a) firing will increase for CS and increase for US b) firing will increase for CS and decrease for US c) firing will decrease for CS and decrease for US d) firing will decrease for CS and increase for US e) none of the above; firing will remain unchanged for CS and US

Answers

Answer:

d) firing will decrease for CS and increase for US

Step-by-step explanation:

The is the answer going by the probabilistic nature of the schedule. That is, as the probability of relieving reward increase has a direct effect on the CS leading to its decrease as well as a proportional increase for US. On the other hand, a decrease of probability of receiving reward will have an opposite effects on the schedule.

Simplify
8sqrt48-6sqrt75+7sqrt80

Answers

Answer:

2[tex]\sqrt{3}[/tex] + 28[tex]\sqrt{5}[/tex]

Step-by-step explanation:

= 8 [tex]\sqrt{16}[/tex][tex]\sqrt{3}[/tex] - 6[tex]\sqrt{25}[/tex][tex]\sqrt{3}[/tex] + 7[tex]\sqrt{16}[/tex][tex]\sqrt{5}[/tex]

= 8(4)[tex]\sqrt{3}[/tex] - 6(5)[tex]\sqrt{3}[/tex] + 7(4)[tex]\sqrt{5}[/tex]

= 32[tex]\sqrt{3}[/tex]  - 30[tex]\sqrt{3}[/tex] + 28[tex]\sqrt{5}[/tex]

= 2[tex]\sqrt{3}[/tex] + 28[tex]\sqrt{5}[/tex]

How many lines of symmetry does a trapezoid have

Answers

Uhhhh 0 I think ....

A baker made nine cupcakes each a different type four people want to share them equally how many cupcakes in each person get?

Answers

The answer would be 2 and 1/4

42 out of 90 is what percentage?

Answers

Answer=46.6

I hope this helps.

Answer:46.6%

Step-by-step explanation: multiply 42 by 100 than divide that by 90

In how many different ways can you divide the shape to get the same number and type of shapes you obtained in part A?

Answers

Answer:

There are two ways of decomposing these shapes, Into two rectangles and one triangle!

Step-by-step explanation:

Just did this on EDMENTUM you got thiss!

Dont forget to eat a brownie! <3

Answer:

There are two ways of splitting the shape into two rectangles and one triangle.

Step-by-step explanation:

The line that contains a slope of 1/2 and passes thru the point (-2,-3)

Answers

Answer:

in this question what we have to do please can you tell

3x-7 if x =6 i need help plz

Answers

11 because 3 x 6 is 18 then minus 7 makes it 11

11

Step-by-step explanation:

Substitute the value of the variable into the equation and simplify.

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