11x^3 + 15x^2 - 25x + 7 = 0​

Answers

Answer 1

Answer:

x1 = −2.414

x2 = 0.414

x3 = 0.636


Related Questions

Match each letter to its correct term. Efficiency Unobtainable Impossible Inefficiency Underutilization 1. A 2. B 3. C​

Match each letter to its correct term. Efficiency Unobtainable Impossible Inefficiency Underutilization

Answers

Each letter should be matched to its correct term as follows;

1. A ⇔ Efficiency.

2. B ⇔ Impossible.

3. C ⇔ Inefficiency.

What is a production possibilities curve?

In Economics and Mathematics, a production possibilities curve (PPC) can be defined as a type of graph that is typically used for illustrating the maximum and best combinations of two (2) products that can be produced by a producer (manufacturer) in an economy, if they both depend on the following two (2) factors;

Technology is fixed.Resources are fixed.

Based on the production possibilities curve shown in the image attached above, we can reasonably infer and logically deduce that each of the letters represent the following terminologies;

A ⇔ Efficiency: it represent points on the production possibilities curve.B ⇔ Impossible: it represent points outside the production possibilities curve.C ⇔ Inefficiency: it represent points on the interior of a production possibilities curve.

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Match each letter to its correct term. Efficiency Unobtainable Impossible Inefficiency Underutilization

In Exercises 1–4, determine whether the triangles are similar. If they are, write a similarity statement. Explain your
reasoning

In Exercises 14, determine whether the triangles are similar. If they are, write a similarity statement.

Answers

The given two triangles are similar by AA similarity rule.

What is similarity in triangles?

If two triangles have two pairs of sides in the same ratio and the included angles are also equal, then the triangles are similar.

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion.

Given are two triangles, Δ CDE and Δ UST, we need to check whether are similar or not,

In Δ CDE, finding angle E,

∠ C + ∠ D + ∠ E = 180° [angle sum property of a triangle]

∠ E = 180° - (82°+25°)

∠ E = 180° - 107°

∠ E = 73°

Since, we get ∠ E = ∠ T, and ∠ C = ∠ U

According to AA similarity, if two triangles have two congruent corresponding angles, then they are said to be similar.

Hence, Δ CDE ~ Δ UST by AA similar rule.

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How much will you pay for an item that is $28.55 on sale for 60% off?
$17.13
$11.42
$17.00
$11.50

Answers

Answer: That would be $11.42

Step-by-step explanation: Hope this helped!! :)

Answer: $11.42

Step by step explanation:

Please answer immediately I beg.
A pyramid and a cone have the same base area and height. The volume
of the pyramid is 175m³. What is the volume of the one? Explain your answer.

Answers

The volume of cone is 175 m³

Firstly,

Volume of Pyramid.

The volume (V) of a pyramid is  

V = ⅓Ah

Data:

V = 175m³

Calculation:

175 = ⅓× A× h

Ah = 175*3

Ah = 525m³

Secondly,

The volume (V) of a cone is

V = ⅓Ah

Data:

Ah = 525 m³

Calculation:

V = ⅓ A× h

V = 175 m³

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Find the area of the following composite figure.

Is this correct?

Find the area of the following composite figure.Is this correct?

Answers

Step-by-step explanation:

the sum of the area of the inner rectangle and the area of the 2 outer half-circles (that together are the area of one full circle).

the radius of the circles is 10 ft.

so, the diameter (= the width of the inner rectangle) = 2×10 = 20 ft.

so, the area of the inner rectangle is

30×20 = 600 ft²

the area of the combined full circle is

pi×r² = pi×10² = 100pi = 314.1592654... ft²

together that is

914.1592654... ft²

Helpppppppp meeeeeeee plsssss




Helpppppppp meeeeeeee plsssss

Answers

Answer:

it is 1

Step-by-step explanation:

as 4(to the power of 4) multiplied by 1 is 4(to the power of 4)

Answer:

4 to the power of zero (answer is in exponential form as asked on the question

Step-by-step explanation:

4 to the power of zero =1

4 power 4 multiplied by 1 = 4 power 4

Help its urgent i need to get these done

Help its urgent i need to get these done

Answers

The planes that are parallel in the cube shown would be C. NOR and LMP.

What are parallel planes ?

Two planes that are located on a cube and are always opposite and never intersect; they remain continuously at the same distance from each other. A cube consists of three pairs of parallel planes in correspondence with its triplet of opposing faces.

From the given options, the only parallel planes would be NOR and LMP. One of the reasons for this, is that these planes have no point of intersection unlike the planes in the other options.

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A linear pair of angles is in the ratio 9 :11. The measure of the smaller angle in degrees is?


BTW there is a Hint
Assume the angles to be 9x° and 11x°.
Can you help me ASAP


I WILL MARK BRAINLIEST

Answers

9514 1404 393

Answer:

  81°

Step-by-step explanation:

Angles in a linear pair are supplementary. That means their total is 180°.

  9x° +11x° = 180°

  x = 180/20 = 9

Then the smaller angle is ...

  9x° = 9·9° = 81° . . . . measure of the smaller angle

_____

Additional comment

The larger angle will be 11·9° = 99°.

For what value of A is the function, (x), continuous at x=0?

For what value of A is the function, (x), continuous at x=0?

Answers

(i)  \(\lim_{x \to \frac{\pi^-}{2}}\) h(x) = 3

(ii) \(\lim_{x \to \frac{\pi^+}{2}}\) h(x) = -1

(iii) h(0) = 1/7

The value of λ must be 7, for h(x) to be continuous at x = 0.

The given function is,

h(x) = 1/7, when x = 0

      = 1 - 2 cos 2x, when x < π/2

      = 1 + 2 cos 2x, when x > π/2

      = x cos x/sin λx, when x < 0

Now,

(i) \(\lim_{x \to \frac{\pi^-}{2}}\) h(x) = \(\lim_{x \to \frac{\pi^-}{2}}\) (1 - 2 cos 2x) = 1 - 2 cos π = 1 + 2 = 3

(ii) \(\lim_{x \to \frac{\pi^+}{2}}\) h(x) = \(\lim_{x \to \frac{\pi^+}{2}}\) (1 + 2 cos 2x) = 1 + 2 cos π = 1 - 2 = -1

(iii) h(0) = 1/7

Since the function is continuous at x = 0, so

\(\lim_{x \to 0}\) h(x) = h(0)

\(\lim_{x \to 0}\) x cos x/sin λx = 1/7

\(\lim_{x \to 0}\) cos x.\(\lim_{x \to 0}\) 1/λ(sinλx/λx) = 1/7

1/λ = 1/7

λ = 7

Hence the value of λ must be 7.

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show full solutions.15. Name the indicated parts of this diagram.

show full solutions.15. Name the indicated parts of this diagram.

Answers

Given:

A circle with a center at C.

Required:

We need to find the names of the given parts.

Explanation:

Recall that radius is a line segment extending from the center of a circle to the circumference.

Line segment AC extends from the center C of a circle to the circumference.

\(AC=Radius\)

Recall that the arc of a circle is defined as the part of the circumference of a circle.

AE is the part of the circumference of a circle.

\(AE=Arc\)

Recall that a straight line segment joins and is included between two points on a circle.

D and E are two points on a circle.

A straight line DE line segment joins and is included between two points D and E on a circle.

\(DE=Chord\)

Recall that meeting a curve or surface in a single point if a sufficiently small interval is considered a straight line tangent to a curve.

AB is tangent.

\(AB=Tangent\)

Recall that an inscribed angle is an angle with its vertex "on" the circle, formed by two intersecting chords.

\(\measuredangle ADE=\text{ Inscribed angle.}\)

Recall that a central angle is an angle formed by two radii with the vertex at the center of the circle.

\(\measuredangle ACE=\text{ Central angle}\)

Recall that an angle formed by an intersecting tangent and chord has its vertex "on" the circle.

\(\measuredangle\measuredangle CAB=\text{ Tangent Chord Angle}\)

Final answer:

\(AC=Radius\)

\(AE=Arc\)

\(DE=Chord\)

\(AB=Tangent\)

\(\measuredangle ADE=\text{ Inscribed angle.}\)

\(\measuredangle ACE=\text{ Central angle}\)

\(\measuredangle\measuredangle CAB=\text{ Tangent Chord Angle}\)

F(x)=(x+2)^2 (x-3) graph the function

Answers

The value of the equation f ( x ) is

f ( x ) = x³ + x² - 8x - 12

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

f ( x ) = ( x + 2 )²( x -3 )   be equation (1)

Now , on simplifying the equation , we get

f ( x ) = ( x + 2 )²( x -3 )

f ( x ) = ( x² + 4x + 4 ) ( x - 3 )

Now , multiplying each term with ( x - 3 ) , we get

f ( x ) = ( x - 3 ) x² + ( x - 3 ) 4x + ( x - 3 ) 4

f ( x ) = x³ - 3x² + 4x² - 12x + 4x - 12

On simplifying the equation ,we get

f ( x ) = x³ + x² - 8x - 12

Now , the value of the equation f ( x ) = x³ + x² - 8x - 12

On graphing the equation , we get

The graph of the equation f ( x ) = x³ + x² - 8x - 12 is shown below

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F(x)=(x+2)^2 (x-3) graph the function

Can someone help me with a two step equatio that is x=2

Answers

Sure type it in comments

Help me please and thank you..

Help me please and thank you..

Answers

Answer:

You will move each point of this shape 1 unit into the right. Then will move each point of this shape 2 units down. The draw line between each point.

What is 2x 2 5/6 I need help due in 6 min

Answers

Answer:

5 2/3

Step-by-step explanation:

2 * 2 5/6

2 * (12+5/6)

2 * (17/6)

34/6

17/3 = 5 2/3

Simplify the following expression:
√-36+√-100+ 7
O A. 7+ 16i
OB. 7+√136i
O C. 16
C. 16 - 7i
O D. 23 + 0i

Answers

The expression is:


√-36 + √-100 + 7


To simplify this expression, we need to first remove the negative radicals. We can do this by squaring both sides of the equation:


√-36 = -6
√-100 = -10


Substituting these values back into the expression, we get:


-6 + -10 + 7 = -19 + 7 = -12


So, the simplified expression is:


-12


Since the expression is already in its simplified form, there is no need to factor it further.

A poultry farmer wishes to estimate the average incubation period (the number of days between a hen laying her egg and the time the egg hatches) for eggs on his farm. He plans to take a sample and make a 98% confidence interval, and would like a margin of error of half a day. It is known that the distribution of incubation lengths has a standard deviation of 1.5 days. How many eggs does he need to sample to create the desired interval

Answers

Answer:

49 eggs.

Step-by-step explanation:

The formula for Margin of Error =

z × standard deviation/√number of samples

z = z score of 98% confidence interval = 2.326

Margin of Error = Half a day = 1/2day = 0.5 day

Standard deviation = 1.5 days

Number of samples = number of eggs he needs to sample = unknown.

Imputing these above values into the formula

Margin of Error = z × standard deviation/√number of samples

0.5 = 2.326 × 1.5/√n

Cross Multiply

0.5 × √n = 2.326 × 1.5

√n = 2.326 × 1.5/0.5

√n = 3.489/0.5

√n = 6.978

Square both sides

(√n)² = 6.978²

n = 48.692484

n ≈ Approximately to the nearest whole number = 49

Therefore, the number of eggs he needs to sample to create the desired interval is approximately to the nearest whole number 49 eggs

If 25% of a number is 50 and 35% of the same number is 70, find 10% of that number.

Answers

Answer:

10%×200=20

Step-by-step explanation:

25%×200=50

35%×200=70

A 12 cm by 12 cm square piece of paper has 5 holes punched out of it. 4 of the holes are circles of radius 3 cm and 1 of the holes is a circle of radius 1 cm. The paper and punched holes can be visually interpreted as below. Determine the area of paper remaining after the holes have been punched out.

A 12 cm by 12 cm square piece of paper has 5 holes punched out of it. 4 of the holes are circles of radius

Answers

5 holes have been punched into a 12 cm by 12 cm square piece of paper. The area of remaining paper will be 27.714 cm².

Firstly, we will calculate the area of the square of paper in which the holes are punched.

Side of square = 12 cm

Area of square = side²

= (12) ²

= 144 cm²

Now, we will calculate the area of the bigger punch holes

Radius of big punch hole = 3 cm

Area of 1 big punch = π (radius) ²

= 22/7 × (3)²

22 / 7 × 9

= 198 / 7 cm²

Area of 4 punches = 4 × 198/7

= 792/7 cm²

Now, we will calculate the area of smaller punch whose radius is 1cm

Area = 22/7 × 1²

= 22/7 cm²

Now, we will calculate the total area covered by circles

Total area covered by circles = area of small punch + area of 4 big punch

= 22/7 + 792/7

= 814 /7 cm²

Remaining area = area of square - area of circles

= 144 - 814/7

= (1008 - 814) / 7

= 194 / 7

= 27.714 cm²

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Four items are purchased at prices of $5.30, $1.29, $.53, and $.68. Sales tax applies at 5% of the total purchase price. What is the total charge?

Answers

Answer:

$8.19

Step-by-step explanation:

1. Add the cost of the items together

5.3 + 1.29 + 0.53 + 0.68 = 7.8

2. Solve for 5% of the cost of the items

5% = 0.05

7.8 · 0.05 = 0.39

3. Add the sales tax to the price of the items

7.8 + 0.39 = 8.19

Answer:  $8.19

Explanation:

Add up the prices

5.30 + 1.29 + 0.53 + 0.68 = 7.80

This is the total amount before tax is added. To find the amount after tax, we multiply by 1.05 to get

1.05*7.80 = 8.19

Or a longer way is to find 5% of 7.80 getting 0.05*7.80 = 0.39 in the amount of tax owed, which is added on top of the previous total we got earlier. So we have 7.80 + 0.39 = 8.19

The use of the multiplier 1.05 is handy when you need to apply multiple percentage increases (it also works if you have multiple discounts as well).

Supposed to select all statements that are true about the construction

Supposed to select all statements that are true about the construction

Answers

The segment AB is perbenticular to XY.

Here 90 degrees is an interior angle for Arc XB and Arc AY

\(90^o=\frac{XB+AY}{2}\)\(XB+\text{AY}=180^o\)

Similarly, 90 degrees is an interior angle for Arc XA and Arc BY


The Boys and Girl's Club is buying 15 adult
tickets and 85 children's tickets to the fair. Adult
tickets are $14 and children's tickets are $12.
How much did they spend in all?

Answers

Answer:

$1230

Step-by-step explanation:

Adult tickets cost = 15 * $14 = $210

The children tickets cost = 85 * $12 = $1020

Therefore, they spent $1020 + $210 = $1230

Find the value of x.

A 45, 45, 90 degree right triangle is drawn. One of the 45 degree angles is labeled. The leg adjacent to that 45 degree angle is labeled 5. The leg opposite that 45 degree angle is labeled x. The hypotenuse is labeled y.

Answers

Answer:

x = 5

y = 5√2

Step-by-step explanation:

In a 45-45-90 degree right triangle, the two legs form the right angle, and the hypotenuse is opposite the right angle.

The side lengths of a 45-45-90 right triangle are in the ratio

1 : 1 : √2

The legs are congruent, so if one leg has length 5, the other leg also has length 5.

The hypotenuse is √2 times the length of the legs.

x = 5

y = 5√2

0.5 is a rational number.
True
False

Answers

Answer:

true

Step-by-step explanation:

Natural numbers are numbers naturally occurring in nature like 1, 2, 3, 4, 5, 6, 7, 8, 9 . . .

Whole numbers are numbers that are whole, like 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 . . . (the only difference is that there is a 0 included)

Integers include negative and positive numbers like -3, -2, -1, 0, 1, 2, 3, 4 . . .

Rational numbers are include all of the above AND anything that can be turned into a fraction, like fractions and decimals (that have an end) like 0.625, -0.5, 1, 4, 1/4, 6/15, 4.8, etc.

So in this case, yes, 0.5 is a rational number.

Answer:

true

Step-by-step explanation:

ALGEBRA please put a very small explanation to the awnser

ALGEBRA please put a very small explanation to the awnser
ALGEBRA please put a very small explanation to the awnser

Answers

Certainly! The problem can be solved using the Pythagorean theorem,

which states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

In this case, the ladder acts as the hypotenuse, and we need to find the length of the vertical side (height) it reaches up the wall.

The ladder forms the hypotenuse, and its length is given as 12 meters. The distance from the foot of the ladder to the base of the wall represents one side of the triangle, which is 4.5 meters.

By substituting the given values into the Pythagorean theorem equation: (12m)^2 = h^2 + (4.5m)^2, we can solve for the unknown height 'h'.

Squaring 12m gives us 144m^2, and squaring 4.5m yields 20.25m^2. By subtracting 20.25m^2 from both sides of the equation, we isolate 'h^2'.

We then take the square root of both sides to find 'h'. The square root of 123.75m^2 is approximately 11.12m.

Therefore, the ladder reaches a height of approximately 11.12 meters up the wall.

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The tables represent the points earned in each game for a season by two football teams.


Panthers
14 10 10
10 17 3
28 13 17
32 16 10
14 7 21
Cowboys
10 3 8
6 24 12
21 3 10
28 28 7
7 13 3

Which team had the best overall record for the season? Determine the best measure of center to compare and explain your answer.
Panthers; they have a larger median value of 14 points
Cowboys; they have a larger median value of 10 points
Panthers; they have a larger mean value of about 14.8 points
Cowboys; they have a larger mean value of about 12.2 points

Answers

Answer:

Therefore, the Panthers had a better overall record for the season, with a total of 212 points earned compared to the Cowboys' total of 173 points.

Step-by-step explanation:

To compare the measures of center, we can calculate the mean and median points earned by each team:

Panthers: Mean = 212/15 = 14.13 points, Median = 14 points

Cowboys: Mean = 173/15 = 11.53 points, Median = 10 points

Based on these calculations, we can see that the Panthers have a larger mean value of about 14.13 points compared to the Cowboys' mean value of about 11.53 points. However, the median value for both teams is less useful for comparison since they are only one point apart. Therefore, we can conclude that the Panthers had the better overall record for the season based on both the total points earned and their larger mean value.

So, the answer is Panthers; they have a larger mean value of about 14.8 points (Option C is incorrect as the mean value of Panthers is approximately 14.13 and not 14.8).

Help please!!!!!!!!!

Help please!!!!!!!!!

Answers

Answer:

1,5

Step-by-step explanation:

there is an obvious pattern in the coordinate plane and the coordinates (5, 1) completes that pattern

hope that helped :)

Answer: (4,2), (1,2), (4,5]

Step-by-step explanation: hope this helps

At the store the ratio of books sold to movies sold was 4:5.For every_books sold there were _ movies sold.

Answers

Answer:

At the store the ratio of books sold to movies sold was 4:5.For every 4 books sold there were 5 movies sold.

Step-by-step explanation:

How much more is 8x10^9 than 2x10^3?

example: Answer is 1x10^2

Answers

Answer: 8x10 to the power of 9 = 80000000000

2x10 to the power of 3 = 2000

And I don’t know understand why you put 1x10 to the power of 2

But 1x10 to the power of 2 =100

Step-by-step explanation: Is this kind of answer you want hope this help

The graph at the right shows
a function, f, graphed on the
domain 0 < x < 8.
The section from A to B is a
straight segment.
The section from B to C is
represented by y = (x - 5)^2

1. Find the slope of the segment from A to B.

2. Find the x-coordinate of the relative minimum
value of the graph from B to C.

3. Find the value of f (3) + f (4) + f (6) + f (7).

The graph at the right showsa function, f, graphed on thedomain 0 &lt; x &lt; 8.The section from A to

Answers

Answer:

Step-by-step explanation:

1). Since, line segment AB passes through two points ((0, 0) and (3, 4)

Therefore, slope of the segment = \(\frac{y_2-y_1}{x_2-x_1}\)

                                                        = \(\frac{4-0}{3-0}\)

                                                        = \(\frac{4}{3}\)

2). Relative minimum of the graph from B to C → (5, 0)

   Therefore, x-coordinate of the relative minimum → x = 5

3). From the graph attached,

   f(3) = 4

   f(4) = 1

   f(6) = 1

   f(7) = 4

   Therefore, f(3) + f(4) + f(6) + f(7) = 4 + 1 + 1 + 4

                                                          = 10

Solve the equation for m

M - 14 = -3

Answers

Answer:

M = 11

Step-by-step explanation:

M - 14 = -3

M - 14 + 14 = -3 + 14

M = 11

Answer:

\( \sf \: M = 11 \)

Step-by-step explanation:

Now we have to,

→ Find the required value of M.

The equation is,

→ M - 14 = -3

Then the value of M will be,

→ M - 14 = -3

→ M = -3 + 14

→ M = 14 - 3

→ [ M = 11 ]

Hence, the value of M is 11.

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