find the equations of the tangents to the curve y= x(x-1)(x+2) at the points where the curve cuts the x axis

Answer:

4 n - 7

Step-by-step explanation:

- 3 , 1 , 5 , 9

The difference between the terms is 4, so our multiplier is 4 n

4 , 8 , 12 , 16 ( The 4 times tables )

-3 , 1 , 5 , 9 ( The original sequence )

What are we doing to get from the 4 times tables to get to the original sequence?

4 - - 3 = 7

8 - 1 = 7

12 - 5 = 7

16 - 9 = 7

We are subtracting 7 so our complete general term is 4 n -7

1. B

2. C

3. D

4. A

Hope this helps!

Answer:

1. B

2. C

3. D

4. AStep-by-step explanation:

Answer:

(-3, 1), 5

Step-by-step explanation:

x² + y² + 6x - 2y - 15 = 0

Rearrange:

x² + 6x + y² - 2y = 15

Complete the square:

x² + 6x + 9 + y² - 2y + 1 = 15 + 9 + 1

(x + 3)² + (y - 1)² = 25

Therefore, the center is (-3, 1) and the radius is 5.

The center of the circle is (-3, 1), and the radius is 5.

To find the center and radius of the circle described by the equation[tex]x^2 + y^2 + 6x - 2y - 15 = 0,[/tex] we'll first rewrite the equation in standard form, which has the general form:

[tex](x - h)^2 + (y - k)^2 = r^2[/tex]

Where (h, k) represents the center of the circle, and r represents the radius.

Let's complete the square to rewrite the given equation in standard form:

[tex]x^2 + 6x + y^2 - 2y = 15[/tex]  

Now, we'll complete the square for both the x and y terms.

To complete the square for the x terms, we add and subtract [tex](6/2)^2 = 9:x^2 + 6x + 9 + y^2 - 2y = 15 + 9[/tex]

Now, complete the square for the y terms by adding and subtracting (-2/2)^2 = 1:

[tex]x^2 + 6x + 9 + y^2 - 2y + 1 = 15 + 9 + 1[/tex]

Now, we have:

[tex](x^2 + 6x + 9) + (y^2 - 2y + 1) = 25[/tex]

Next, we can rewrite this as two perfect square trinomials:

[tex](x + 3)^2 + (y - 1)^2 = 25[/tex]

Now, the equation is in standard form. Comparing it to the standard form, we can see that:

h = -3 (opposite sign in the equation)

k = 1 (opposite sign in the equation)

[tex]r^2 = 25[/tex] (radius squared)

To find the radius (r), take the square root of 25:

r = √25 = 5.

For similar question on center of the circle.

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Answer:

[tex]3x+5[/tex]

Step-by-step explanation:

we have

[tex](8x-2)-(5x-7)[/tex]

step 1

Eliminate the parenthesis

[tex](8x-2)-(5x-7)=8x-2-5x+7[/tex]

step 2

Groupe terms that contain the same variable

[tex]8x-5x-2+7[/tex]

step 3

Combine like terms

[tex]3x+5[/tex]

The simplified expression  of  (8x-2) -(5x-7) is said to be 3x + 5.

To subtract the expression (8x - 2) - (5x - 7), we can use the distributive property to remove the parentheses. Here's the step-by-step solution:

(8x - 2) - (5x - 7)

Do, Remove the parentheses:

8x - 2 - 5x + 7

Combine like terms:

(8x - 5x) + (-2 + 7)

Hence:

3x + 5

Therefore, the simplified expression is 3x + 5.

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Answer:

arithmetic

Step-by-step explanation:

The points fall on a straight line. They won't do that for a geometric sequence.

___

Normally the terms of either sort of sequence are numbered with counting numbers: 1, 2, 3, .... Your x-values are negative, so are obviously not term numbers of a sequence. The differences of x-values are 1, and the differences of y-values are 2.5, so we know the x- and y-values are linearly related. That relationship can be expressed in point-slope form by ...

y = 2.5(x +1) +12.5

which can be simplified to

y = 2.5x +15

__

The arithmetic sequence with first term 17.5 and common difference 2.5 would be described by this same equation.

Answer:

  square

Step-by-step explanation:

A graph reveals all side lengths are the same and sides are perpendicular. The quadrilateral is a square.

Answer:

4.3 feet

Step-by-step explanation:

Using the equation of a line as y -y1 = m(x-x1)

Replace m with the given slope and y1 and x1 with the given point:

y - (-92) = -14(x- (-2))

Simpligy:

y + 92 = -14(x +2)

Simplify the right side:

y +92 = -14x -28

Subtract 92 from each side:

y = -14x-120

The y - intercept is -120

Option D. an isulator

Is the right answer i guess...

As The transfer of electrons increases The cunductivity also increases...

Hope it helps...

Regards,

Leukonov/Olegion.

Answer:

Insulator

Step-by-step explanation:

As insulators are meant to prevent the conduction of electricity.

Answer: 2 pounds

Step-by-step explanation: There are 16 ounces in one pound. So when you divide 32 by 16, you get 2. Therefore your answer would be 2 pounds!

For this case we must make a conversion.

We know, by definition, that 1 ounce is equivalent to 0.0625 pounds.

We make a rule of three to determine how many pounds are 32 ounces.

1oz ---------------> 0.0625lb

32oz -------------> x

DOnde "x" represents the number of pounds

[tex]x = \frac {32 * 0.0625} {1}\\x = 2[/tex]

So, 32 ounces equals 2 pounds

Answer:

2 pounds

Step-by-step explanation:

[tex]n!=1\cdot2\cdot3\cdot...\cdot n\\\\\dfrac{9!}{9-32}=\dfrac{1\cdot2\cdot3\cdot4\cdot5\cdot6\cdot7\cdot8\cdot9}{-23}=-\dfrac{362880}{23}[/tex]

Answer:

172.92 minutes

Step-by-step explanation:

Step 1: Write a proportion

33/5 = X/26.2

Step 2: Solve your proportion

X = 172.92

Find the rate for the number of minutes per mile. (# of minutes/mile)

33 minutes/5 miles = 6.6 minutes/mile

It takes him 6.6 minutes to run a mile, so you can multiply 26.2 miles by 6.6 minutes to find how long it takes him to run 26.2 miles.

26.2(6.6) = 172.92 minutes

ANSWER

260 miles

EXPLANATION

The equation that models the cost is

[tex]y = 35 + 0.25x[/tex]

If you have a maximum of $100 to spend for the car rental, then we can equation the cost function to

$100 to determine the maximum number of miles you could travel.

[tex]35 + 0.25x = 100[/tex]

[tex]0.25x = 100 - 35[/tex]

[tex]0.25x = 65[/tex]

[tex]x = \frac{65}{0.25} [/tex]

[tex]x = 260mi[/tex]

Therefore the maximum number of miles you can travel is 260 miles

Answer:

z = [tex]-\frac{2}{5}[/tex] or - 0.4

Step-by-step explanation:

8+2z = 6 - 3z

2z = 6 - 8 - 3z

2z + 3z = - 2

5z = -2

z = [tex]-\frac{2}{5}[/tex] or - 0.4

Answer:

y-axis

Step-by-step explanation:

Answer:

[tex]P=0.735[/tex]

Step-by-step explanation:

Call A to the event in which Nathan is allergic to penicillin

So

[tex]P (A) = 0.75[/tex]

[tex]P (A') = 1-P (A) = 0.25[/tex]

Call B the event in which the skin test predicts correctly.

So:

[tex]P (B) = 0.98\\P (B ') = 1-P (B) = 0.02[/tex]

We look for the probability that Nathan is allergic to penicillin and the test predicts it.

This is [tex]P (A\ and\ B)[/tex].

[tex]P (A\ and\ B) = P (A)*P (B)\\\\P (A\ and\ B) = 0.75 * 0.98\\\\P (A\ and\ B) = 0.735[/tex]

Answer:

The two integers you are finding is 21 and 23.

x² + y² = 970

970 / 2 = 485 ( divide it to two because we are finding two integers )

√ 485 = 22.022715546 or when rounded off, 22 ( square root because we are finding squares )

It means, the answers are near the number 22.

I found out 21 and 23

21 and 23 is two consecutive odd integers

Let x = 21

Let y = 23

x² + y² = 970

( 21 )² + ( 23 )² = 970

= 441 + 529

= 970

GIVE ME BRAINLIEST PLEASE !!! :)

Answer:

21, 23 and -21, 23

Step-by-step explanation:

The difference between two consecutive odd numbers is 2.

Let the smaller number be x. Then, the larger number is x + 2.

Now add their squares and set it equal to 970. Then  solve for x.

smaller number: x

larger number: x + 2

sum of the squares of the two numbers: x^2 + (x + 2)^2

equation: x^2 + (x + 2)^2 = 970

Solution of the equation:

x^2 + (x + 2)^2 = 970

Expand the square of the binomial:

x^2 + x^2 + 4x + 4 = 970

Combine like terms on the left side:

2x^2 + 4x + 4 = 970

Subtract 970 from both sides:

2x^2 + 4x - 966 = 0

Divide both sides by 2:

x^2 + 2x - 483 = 0

Now we need to factor the binomial. We need two number whose sum is 2 and whose product is -483. Look at 483. It is not divisible by 2, but it is divisible by 3.

483/3 = 161

161 is divisible by 7.

161/7 = 23

23 is prime, so the prime factorization of 483 is

483 = 3 * 7 * 23

Notice that 3 * 7 = 21, so

483 = 21 * 23

Use -21 and 23:

-21 + 23 = 2

-21 * 23 = -483

x^2 + 2x - 483 factors into (x - 21)(x + 23)

Now we continue solving the equation.

x^2 + 2x - 483 = 0

(x - 21)(x + 23) = 0

x - 21 = 0 or x + 23 = 0

x = 21 or x = -23

We let x equal the smaller of the two integers, so now we add 2 to find the second integer.

x = 21; x + 2 = 23

x = -23; x + 2 = -21

There are two sets of consecutive odd numbers that satisfy this problem.

21, 23

-23, -21

The problem did not state positive or negative consecutive odd numbers, so both solutions are valid.

48 miles. If 1 inch means 12 miles you can multiply both sides by 4 to get "4 inches = 48 miles"

Answer:

2,160 [tex]ft^{3}[/tex]

Step-by-step explanation:

The formula is V = lhw

15 x 24 x 6 = V

15 x 24 = 360

360 x 6 = 2,160

2,160[tex]ft^{3}[/tex]

Answer: 180 ft³

Step-by-step explanation:

You can calculate the volume of a right rectangular prism with this formula:

[tex]V=lwh[/tex]

Where "l" is the length and "w" is the width.

You know that the height of that this right rectangular prism is 15 feet, its length is 24 inches and its width is 6 feet.

Then, you need to make the conversion from 24 inches to feet (1 feet=12 inches):

[tex]l=(24in)(\frac{1ft}{12in})= 2ft[/tex]

Then, susbtituting values, you get:

[tex]V=(2ft)(6ft)(15ft)=180ft^3[/tex]

Answer:

172 degrees

Step-by-step explanation:

The complement of an angle, when added to that angle is equal to 90, so do x + 82 = 90

x = 8

The supplement of a an angle when added to that angle is equal to 180 so do

y + 8 = 180

y = 172

Applying the definition of supplementary angles and complementary angles, if angle A is 82 degrees, the supplement of the complement of angle A is: 172 degrees.

Recall:

Given that Angle A equals 82 degrees.

Thus:

The supplement of 8 degrees will be: 180 - 8 = 172 degrees.

Therefore, applying the definition of supplementary angles and complementary angles, if angle A is 82 degrees, the supplement of the complement of angle A is: 172 degrees.

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Answer:

(7,-2)

Step-by-step explanation:

3x+2y=17

-2x-y=-12

Multiply the second equation by 2 so we can eliminate y

2( -2x-y=-12)   becomes -4x-2y = -24

Add this to the first equation

3x+2y=17

-4x-2y=-24

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

-x = -7

Multiply each side by -1

x = 7

Substitute back into the first equation to find y

3(7) +2y = 17

21 +2y = 17

Subtract 21 from each side

21-21 +2y = 17-21

2y = -4

Divide each side by 2

2y/2 = -4/2

y =-2

(7,-2)

Answer:

Step-by-step explanation:

[tex]\left\{\begin{array}{ccc}3x+2y=17&(1)\\-2x-y=-12&(2)\end{array}\right\\\\(2)\\-2x-y=-12\qquad\text{add 2x to both sides}\\-y=2x-12\qquad\text{change the signs}\\y=-2x+12\qquad\text{substitute it to (1):}\\\\3x+2(-2x+12)=17\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\3x+(2)(-2x)+(2)(12)=17\\3x-4x+24=17\qquad\text{subtract 24 from both sides}\\-x=-7\qquad\text{change the signs}\\\boxed{x=7}\\\\\text{Put the value of x to (2):}\\\\y=-2(7)+12\\y=-14+12\\\boxed{y=-2}[/tex]

Answer:

None

Step-by-step explanation:

Follow me To get The Answer

Answer:

123. [tex]A=lw[/tex], [tex]A=72[/tex]

124. B) 20 square feet

125. C) [tex]\frac{1}{6}[/tex]

126. A) 24 + 12, B) (4*6)+(4*3)

127. 30, 36, 44

Step-by-step explanation:

123. Area = length*width

Substitute '9' for [tex]l[/tex] and '8' for [tex]w[/tex].

[tex]A=(9)(8)[/tex] or [tex]A=(9*8)[/tex]

[tex]9*8=72[/tex], so [tex]A=72[/tex].

124. Using the formula [tex]A=lw[/tex], substitute '5' for [tex]l[/tex] and '4' for [tex]w[/tex].

[tex]A=(5)(4)[/tex] or [tex]A=(5*4)[/tex]

[tex]5*4=20[/tex], so [tex]A=20[/tex].

125. The hexagon was divided into 6 triangles, so each of the triangles is one out of six, one sixth ([tex]\frac{1}{6}[/tex].

126. The lighter rectangle's area is 24 and the darker's is 12 because (4*6) = 24 and (4*3) = 12.

127. For these shapes, I am using the 'subtraction' method (find the area of the shape as if it were a larger rectangle, then subtract the 'blank' spaces).

A(larger rectangle) = [tex]6*7=42[/tex]

A('blank' space) = [tex]3*4=12[/tex]

A(larger rectangle - 'blank' space) = [tex]42-12=30[/tex]

A(larger rectangle) = [tex]8*7=56[/tex]

A('blank' space) = [tex]5*4=20[/tex]

A(larger rectangle - 'blank' space) = [tex]56-20=36[/tex]

A(larger rectangle) = [tex]8*6=48[/tex]

A('blank' space) = [tex]2*1=2[/tex]  (there are two of them (both equal), so add them both together) 2 + 2 = 4.

A(larger rectangle - 'blank' space) = [tex]48-4=44[/tex]

Answer:

[tex]y=- 4x + 4[/tex]

Step-by-step explanation:

The slope formula for a straight line is:

[tex]y=mx+b[/tex]

Where, 'm' is the slope and 'b' is the y-intercept.

To find the x-intercept of a line, we need to equal 'y' to zero, and then solve for 'x'. In this case we know that the x-intercept is 1, so we have the point (x1, y1)=(1,0). We are given a second point which is: (x0, y0)=(-2, 12).

To find the slope, we use the following formula:

[tex]m = \frac{y1-y0}{x1-x0} = \frac{0-12}{1-(-2)} = -4 [/tex]

Now, The equation of the line is: y - y0 = m(x-x0). Then, substituting the values of 'm', 'x0' and 'y0' we have that:

[tex]y - 12 = -4(x+2) ⇒ y = -4x-8 + 12 ⇒ y=- 4x + 4[/tex]

The equation of the line using the slope-intercept form is:

[tex]y=- 4x + 4[/tex]

The sum of the series 14+20+26+...+1244 is 129,045.

The question is to find the sum of the sequence 14+20+26+...+1244. This is an arithmetic series where the common difference (d) is 6, since each term is 6 more than the previous term. The first term (a1) is 14.

To find the sum of the series, we need to determine the number of terms (n). The nth term of an arithmetic series is given by an = a1 + (n-1)d. We will set an to 1244, the last term, and solve for n:

1244 = 14 + (n-1) × 6

n = (1244 - 14)/6 + 1

n = 205

Now that we have the number of terms, we can use the sum formula for an arithmetic series which is S = n/2  × (a1 + an). Thus:

S = 205/2 × (14 + 1244)

S = 102.5 × 1258

S = 129,045

So, the sum of the series 14+20+26+...+1244 is 129,045.

Not all heroes wear capes. Anyways thank you!

Answer:

thanks for this! <3

Step-by-step explanation:

For this case we have by definition, that the Greatest Common Factor or GFC, of two or more whole numbers is the largest integer that divides them without leaving a residue.

Now, we look for the factors of 72 and 210:

72: 1,2,3,4,6,8,9,12,16,24,36,72

210: 1,2,3, 5,6,7 ...

Thus, the GFC of both is 6.

Then, the GFC of [tex]72x ^ 3y ^ 2[/tex] and [tex]210x ^ 2y ^ 5[/tex] is given by:

[tex]6x ^ 2y ^ 2[/tex]

ANswer:

[tex]6x ^ 2y ^ 2[/tex]

The correct comparison for the expressions 2b and b+g is 2b > b+g.

Let's analyze the expressions:

Comparing 2b and b+g, the correct statement is A. 2b > b+g as having more green balls than blue balls implies the total green balls are more, making the expression 2b greater than b+g.

Based on these cases, the only condition that aligns with g > b is when [tex]\(2b < b + g.[/tex]

Thus, the correct answer is: B. 2b < b + g.

To find which statement is correct, let's consider the relationship between the number of green balls (g) and the number of blue balls (b). Since the bag has more green balls than blue balls, it means that g > b.

To compare the expressions 2b and b + g, let's examine their relationship under the condition g > b

When 2b > b + g

Rearranging 2b > b + g, we get:

b > g.

This contradicts the condition g > b.

So, this case is not possible.

Case 2: When 2b < b + g :

Rearranging 2b < b + g, we get:

b < g,

which aligns with the given condition g > b.

Hence, this condition is possible.

When 2b = b + g

Rearranging 2b = b + g, we get: [tex]\[b = g.\][/tex]

This condition contradicts the original requirement g > b, so this case is also not possible.

The only condition that aligns with g > b is when [tex]\(2b < b + g.[/tex] Thus, the correct answer is: B. 2b < b + g.

Question : A bag has more green balls than blue balls, and there is at least one blue ball. Let b represent the number of blue balls and let g represent the number of green balls. Let's compare the expressions 2b and b+g. Which statement is correct?

A. 2b>b+g

B. 2b C. 2b=b+g

D. There is not enough information to tell.

Answer:

k = 3.

Step-by-step explanation:

If the 2 roots are A and B we have the relations:

AB = 8/k and A+B = -14/k.

We are given that A = 6B so

6B^2 = 8/k

B^2 = 8/6k = 4/3k

B = 2 /√(3k) ......(1)

Now A + B = -14/k so

6B + B = 7B = -14/k

B = -2/k..........(2)

Eliminating B from equations (1) and (2):

2 /√(3k) = -2/k

Cross multiply:

2k = -2√(3k)

Squaring both sides:

4k^2 = 4 * 3k

4k^2 = 12k

k^2 = 3k

k = 3.

To find the value of k, we first define the roots as p and 6p. We then use the properties of the sum and product of roots in a quadratic equation to form two equations. We can solve these equations to get the value of k.

The given quadratic equation is kx2 + 14x + 8 = 0. We are looking for the value of k for which one root of the equation is six times the other. Let's denote the roots by p and 6p (since one is 6 times the other).

For a quadratic equation ax2 + bx + c = 0, the sum of the roots is given by -b/a and the product of the roots is c/a. In this case, -b/a or -14/k is equal to the sum of the roots (p + 6p). The product of the roots, c/a or 8/k, is equal to p*6p.

From the sum of the roots equation, we can determine p = -14/7k and by substitifying p in the other equation we can solve for k.

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Answer:

The function is A = 10√r

Step-by-step explanation:

* Lets explain the meaning of direct variation

- The direct variation is a mathematical relationship between two

  variables that can be expressed by an equation in which one

  variable is equal to a constant times the other

- If Y is in direct variation with x (y ∝ x), then y = kx, where k is the

 constant of variation

* Now lets solve the problem

# A is varies directly with the square root of r

- Change the statement above to a mathematical relation

∴ A ∝ √r

- Chang the relation to a function by using a constant k

∴ A = k√r

- To find the value of the constant of variation k substitute A and r

 by the given values

∵ r = 16 when A = 40

∵ A = k√r

∴ 40 = k√16 ⇒ simplify the square root

∴ 40 = 4k ⇒ divide both sides by 4 to find the value of k

∴ 10 = k

- The value of the constant of variation is 10

∴ The function describing the relationship of A and r is A = 10√r

Answer:

A = 10[tex]\sqrt{r}[/tex]

Step-by-step explanation:

Given A varies directly with the square root of r then the equation relating them is

A = k[tex]\sqrt{r}[/tex] ← k is the constant of variation

To find k use the condition r = 16 , A = 40

k = [tex]\frac{A}{\sqrt{r} }[/tex] = [tex]\frac{40}{\sqrt{16} }[/tex] = [tex]\frac{40}{4}[/tex] = 10

A = 10[tex]\sqrt{r}[/tex] ← equation of variation

Answer:

Yes that is true

because the lines on the opposite side will never intersect

Answer:

The correct option is A. FLED is definitely a parallelogram .

Step-by-step explanation:

From the given figure it is clear that the angle F and angle E are same. Angle L and angle D are same.

[tex]\angle F=\angle E[/tex]

[tex]\angle L=\angle D[/tex]

According to the properties of parallelogram, a quadrilateral is called parallelogram if and only if there are two pairs of congruent opposite angles (but not equal to 90°, otherwise it will be a square or rectangle).

Since we have two pairs of congruent opposite angles which are not a right angle, therefore the statement "FLED is definitely a parallelogram" is true.

Hence, option A is correct.