Mathematics High School

The equation x^3-3x=1 has a solution between 1.8 and 1.9. use a trial and improvement method to find this solution. give your answer correct to 2 decimal places.
HELPPPPPP I HAVE BEEN TRYING FOR AGES

The Equation X^3-3x=1 Has A Solution Between 1.8 And 1.9. Use A Trial And Improvement Method To Find

Answers

Answer 1

Answer:

1.88 to 2 decimal places

Step-by-step explanation:

First, I plugged in 1.8 and 1.9:

1.8^3-3*1.8=0.432

1.9^3-3*1.9=1.159

Then, I plugged in 1.85:

1.85^3-3*1.85=0.78

Next, I plugged in 1.87 to get the answer closer to 1:

1.87^3-3*1.87=0.93

Finally, I plugged in 1.88 to get even closer to 1:

1.88^3-3*1.88=1.00

Hope this helps!

Answer 2

Answer:

Step-by-step explanation:

1.8=-0.568 is too small

1.9=0.159 is too big

1.87=-0.70797 is too small

1.88=0.004672 is too big

Next, I plugged in 1.87 to get the answer closer to 1:

1.87^3-3*1.87=0.93

Finally, I plugged in 1.88 to get even closer to 1:

1.88^3-3*1.88=1.00

1.875=-0.033203125 is too small

so it should be 1.88 to 2 decimal places

Related Questions

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The domain is {x∈ℝ∣∣x≤0} and the range is {y∈ℝ∣∣y≤0}.

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Answer:

The domain is {x∣∣x∈ℝ} and the range is {y∈ℝ∣∣y≥0}.

Step-by-step explanation:

what is the prime factorization for 42

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Answer:

2x3x7

Step-by-step explanation:

How would you solve X+5^2=16 using the rewrite method I only have 10 min left help

Answers

Answer:

x=-9

Step-by-step explanation:

x+5^2=16

x+25=16

x=-9

Answer :

x + 5² = 16

x + 25 = 16

x = 16-25

x = -9 is the answwr

Hope it helped

I need help with the area and perimeter

Answers

Answer:

Area would be 122.

Perimeter would be 45.

A function is represented by the graph. Complete the statement by selecting from the drop-down menu. The y-intercept of the function​ ​y=3x+2​ ​​is Choose... the y-intercept of the function represented in the graph. A graph with a line through point (0, 2) and point (2, 6)

Answers

Answer:

less than

Step-by-step explanation:

Answer:

A graph with a line through point (0, 2) and point (2, 6)

Which graph represents the inequality? 2x+y>4

Answers

m=-2

b=4

Slope=-2x+4

y<-2x+4

Four times a number plus five times the number is the same as ten more than eight
times the number. Find the number

Answers

Answer:

The number is 10.

Step-by-step explanation:

Given that:

Four times a number plus five times the number is the same as ten more than eight  times the number.

Let,

x represent the number.

According to given statement,

4 times the number + 5 times the number = 10 + eight times the number

4x+5x=10+8x

Solving the equation,

9x=10+8x

Subtracting 8x from both sides

9x-8x=10+8x-8x

x=10

Hence,

The number is 10.

(-25) devided (-5).

Answers

Answer:

Step-by-step explanation:

Here you go mate

step 1

(-25)/(-5)

step 2

(-25)/(-5)  divide the equation by 5

answer

=5

Answer: 5

Step-by-step explanation:

Multiplying or dividing a negative by a negative results in a positive.

[tex](-10)/(-2)=5[/tex]

Multiplying or dividing a negative by a positive results in a negative.

[tex](-10)/(2)=-5[/tex]

Multiplying or dividing a positive by a negative results in a negative.

[tex](10)/(-2)=-5[/tex]

Multiplying or dividing a positive by a positive results in a positive.

[tex](10)/(2)=5[/tex]

Thus, because -25 and -5 are both negatives, the answer must be positive.

The perimeter of a rectangle is equal to 280 meters.
The ratio of its length to its width is 5:2. Find the area
of the rectangle.

Answers

Answer: the area of the rectangle is 4000 meter square.

Step-by-step explanation:

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Will mark brainliest :)

Answers

9m^2 + 12m + 12m + 16
(collect like terms)

9m^2 + 24m = 16

please answer/ HELP ME I am using ALL of my points to ask this !!! Write the equation for the quadratic function in the graph.

Answers

Answer:

C matches the graph the best

Step-by-step explanation:


To go bowling, it costs $2 to rent shoes and then $3.25 for each game bowled. Which of the following functions gives the total cost to bowl g games?

Answers

Answer:

2+3.25x

Step-by-step explanation:

Miya flips a coin and rolls a 6-sided number cube labled 1-6 and records tge outcome. About how many times is she likely to flip heads and roll a 3 out of 48 trials

Answers

Answer:

4 times

Step-by-step explanation:

Sample space :

6 sided cube = (1, 2, 3, 4, 5, 6)

Coin = (H, T)

Probability = required outcome / Total possible outcomes

Probability of head (H) = P(H) = 1 /2 = 0.5

Probability of 3 = P(3) = 1 /6 = 0.166666

Probability of heads and 3 on a single try = p(H) * p(3) = 0.5 * 0.166666 = 0.083333

Hence, expected number of times this is likely to occur in 48 tries :

0.083333 * 48 = 4

Am I correct? Why am I wrong?

Answers

According to the information the correct match would be: 3 1/2 - This is a rational number, but not an integer, 0.56 - This is a rational number, but not an integer, 5 - This is an integer, Square root of 11 - This is an irrational number, -3 1/2 - This is a rational number, but not an integer.

How to determine the type of number?

To determine the type of number, we need to understand the properties of each number.

3 1/2 can be expressed as the fraction 7/2, which is a rational number (a number that can be expressed as a fraction), but not an integer (a whole number without a fractional or decimal part).

0.56 is a rational number as it can be expressed as the fraction 28/50, but it is not an integer as it has a decimal part.

5 is an integer because it is a whole number without any fractional or decimal part.

The square root of 11 is an irrational number since it cannot be expressed as a fraction or a terminating or repeating decimal.

-3 1/2 can be expressed as the fraction -7/2, which is a rational number (a number that can be expressed as a fraction), but it is not an integer (a whole number without a fractional or decimal part).

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find the slope and y-intercept of the line in the equation 2y+x=-6 Show all work!


Slope=____ y-intercept=____

Answers

Make it y = mx + b
Subtract x
2y = -x - 6
Divide by 2
Y = -1/2x - 3
Format: y = mx + b
m = slope, b = y intercept
Solution: slope: -1/2
y intercept: -3

please help me i have a c i need help desperately lol

Answers

Answer:

positive and find the distance..

Step-by-step explanation:

Answer:

1. Find the distance from the number to 0 on the number line

2. positive

Step-by-step explanation:

Answers
Of this picture that I just uploaded

Answers

Answer:

D

Step-by-step explanation:

Please look at the picture I’m timed !!

Answers

Answer:

[tex]k = 2.5[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

[tex]\frac{7.6}{2} = \frac{9.5}{k}[/tex]

Step 2: Solve for k

Cross-multiply:                    [tex]7.6k = 2(9.5)[/tex]Multiply:                               [tex]7.6k = 19[/tex]Isolate k:                              [tex]k = 2.5[/tex]

Answer:

The answer is K+2.5

Step-by-step explanation:

What is the value of x?

Answers

Answer:

120

Step-by-step explanation:

gl!!

Mariana plans to visit an amusement park where she must pay for admission and purchase tickets to go on the rides. Mariana wants to find the total cost for a day at the amusement park. She wrote the equation c = 1.50x + 12 to predict c, the total cost for a day at the amusement park. What could the number 12 represent in Mariana's equation?

Answers

Answer: The number 12 represents admission charge in Mariana's equation.

Step-by-step explanation:

As per given ,

Total cost = ( Charge per ticket) (Number of tickets) +  (Admission fees)  (i)

For x = Number of tickets, the total cost (c) for a day at the amusement park is given as

[tex]c = 1.50x + 12[/tex]                                       (ii)

Here, 12 = Admission fees                 [Comparing (i) and (ii)]

Hence, the number 12 represents admission charge in Mariana's equation.

Find the slope of the graph​

Answers

Answer:Pick two points on the line and determine their coordinates.

Determine the difference in y-coordinates of these two points (rise).

Determine the difference in x-coordinates for these two points (run).

Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).

Step-by-step explanation:

WAIT i think we’re doing the same assignment

Select all true statements.
A) Dilation's of an angle must be congruent to the original angle.
B) Dilation's if a triangle must be congruent to the original triangle.
C) Dilation's of a segment must be congruent to the original segment.
D) Dilation's of a circle must be congruent to the original circle.

Answers

Answer:

A) Dilation's of an angle must be congruent to the original angle.

B) Dilation's if a triangle must be congruent to the original triangle.

Step-by-step explanation:

Dilation is one of rigid transformations in which the size of an angle or object is either increased or decreased, to produce an image, with respect to a given factor. In this process, the dimensions of the object are affected but its orientation remains the same.

When a figure is dilated, the new figure is congruent to the original figure. Also, when an angle undergoes dilation, its measure is not affected. Thus, it would be congruent to the original angle.

3 multiplied by what gives you 0.375

Answers

Answer:

0.125

Step-by-step explanation:

3xp=0.375

p=0.125

Solve for c.

2(c +1) = 10

Answers

Answer:

c = 4

Step-by-step explanation:

[tex]2(c+1) = 10[/tex]

Lets divide both the sides by 2.

[tex]=> \frac{2 (c+1)}{2} = \frac{10}{2}[/tex]

[tex]=> c + 1 = 5[/tex]

Now , lets substract 1 on both the sides.

[tex]=> c + 1 - 1 = 5 - 1[/tex]

[tex]=> c = 4[/tex]

The solution to the equation 2(c + 1) = 10 is c = 4.

We have,

To solve for c in equation 2(c + 1) = 10, we will apply the distributive property and simplify the equation step by step.

Let's solve it:

Distribute the 2 to the terms inside the parentheses:

2c + 2 = 10

Move the constant term (2) to the right side by subtracting 2 from both sides of the equation:

2c + 2 - 2 = 10 - 2

Simplifying further:

2c = 8

Divide both sides of the equation by 2 to solve for c:

(2c) / 2 = 8 / 2

Simplifying further:

c = 4

Therefore,

The solution to the equation 2(c + 1) = 10 is c = 4.

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Mark made 23 out of 45 free throws. What is his average number of free throws made? Express your answer as a decimal using bar notation if necessary.

Answers

Answer:

0.51

Step-by-step explanation:

Total free throws taken = 45

Number of successful free throws = 23

Average number of free throws made (x) :

Successful free throws / Numbe rod free throws taken

23 / 45 = 0.511

x = 0.51

Is it possible for a triangle to have the side lengths 15, 9, 11? Explain
your reasoning

Answers

Answer:

ANSWER: No; 11. SOLUTION: The sum of the lengths of any two sides of a triangle must be greater than the length of the third side

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

11 is more than 6 and less than 24

9 is more than 4 and less than 26

15 is more than 2 and less than 20

What is the total number of possible 4-letter arrangements of the letters m-a-t-h if each letter is used exactly once in each arrangement?

Answers

9514 1404 393

Answer:

  24

Step-by-step explanation:

The number of permutations of 4 items is 4! = 24.

  math, maht, mtah, mtha, mhat, mhta,

  amth, amht, atmh, athm, ahmt, ahtm,

  tmah, tmha, tamh, tahm, thma, tham,

  hmat, hmta, hamt, hatm, htma, htam

This equation shows how the total amount of paper Scott's office has recycled depends on the number of weeks since they started the new recycling plan. p = 12w The variable w represents the number of weeks the office has been on the new recycling plan, and the variable p represents the total kilograms of paper recycled. How many weeks will it take Scott's office to recycle a total of 12 kilograms of paper?

Answers

Answer:

1 week

Step-by-step explanation:

Given:

p = 12w

Where,

w = number of weeks the office has been on the new recycling plan

p = total kilograms of paper recycled.

How many weeks will it take Scott's office to recycle a total of 12 kilograms of paper?

Find w when p = 12

p = 12w

12 = 12w

Divide both sides by 12

w = 12/12

= 1

w = 1 week

Create an algebraic equation for the word problem below.

Canadian Tire is selling coffee mugs. A coffee mug costs $5 and each day the price increases by $2.

Answers

Answer:

p = 5 + 2d

Step-by-step explanation:

Let the day number be d and the price after d days be p, then required equation is:

p = 5 + 2d

A pair of jeans cost $200, but is on sale for 40% off. You still have to be 7%
tax. What is your final cost for the jeans?
$128.40
O
$120
$111.60
280

Answers

Answer:

$128.40

Step-by-step explanation:

200 × 0.4 = 80

200 - 80 = 120

120 × 0.07 = 8.4

120 + 8.4 = 128.4

Answer:

$128.40

Step-by-step explanation:

1. Find the cost after the discount.

Multiply the original cost by the discount percentage. This is the amount that was taken off of the original price.

$200 x 40% = $80

Subtract the discount from the original price.

$200 - $80 = $120.

2. Calculate the tax.

Tax is 7% of the final cost.  Multiply the final cost by the tax rate. This determines how much tax was added.

$120 x 7% = $8.40

Add the tax amount to the discounted price.

$120 + $8.40 = $128.40

The final cost is $128.40.

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