f(x)= -x^2-9x+20 find f(9)

Answer:

b

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Maximum area = 2ab

from ellipse eqn

x^2 + 4y^2 = 49

(x+4y)^2= 49

underoot both sides

x + 4y = 7 ---eqn1

from

[tex] \frac{ {x}^{2} }{ {a}^{2} } + \frac{ {y}^{2} }{{b}^{2} } = 1[/tex]

(ab)^2 = (ax + by)^2

ab= ax + by

compare to eqn1

ab=7

then, area of the largest triangle will be 14 units.

i hope it's ryt

Step-by-step explanation:

I think it's already in standard form

9514 1404 393

Answer:

  T = (4, 9)

Step-by-step explanation:

The midpoint is computed from ...

  Z = (S + T)/2

Solving for T, we find ...

  T = 2Z -S

Using the given coordinates, this is ...

  T = 2(4, 6) -(4, 3) = (2·4-4, 2·6 -3) = (4, 9)

The location of T is (4, 9).

Answer:

5. [tex]4b^8c^3[/tex]

6. [tex]30t^6v^1^0[/tex]

Step-by-step explanation:

5.  [tex](-4b^6)(-b^2c^3)\\4b^8c^3[/tex]

6. [tex](10t^4v^5)(3t^2v^5)\\30t^6v^1^0[/tex]

Answer:

1.46943231441048

Step-by-step explanation:

Answer:

y=x-7

Step-by-step explanation:

This equation is true for all the given points.

Answer:

Y=x-7

Step-by-step explanation:

plug the x values into the equations and see what make sense like

3-7= -4

Answer:

C

Step-by-step explanation:

measure BOA and measure COA are not congruent.

Answer:

multiple

Step-by-step explanation:

I think the answer is "multiple" Since a multiple of a number is that number multiplied by another.

Example: 10 is a multiple of 5 because 5 x 2 = 10

               48 is a multiple of 8 beacuse 8 x 6 = 48

Hope this helps :)

multiple of a number is that number times any whole number.

The following information should be considered:

learn more; https://brainly.com/question/26115859?referrer=searchResults

Answer:

[tex]\boxed {\tt m=\frac{2}{3}}[/tex]

Step-by-step explanation:

Parallel slopes have the same slopes.

If a slope is 2/3, the parallel slope will be the same. So, the parallel slope will also be 2/3.

Therefore, the answer is m=2/3

What is the parallel slope of 2/3 .

We know that parallel slopes have the same slopes.

The parallel slope of 2/3 is 2/3 .

Answer:

D. 6.30q + 14.40 = 4.50(q + 4)

Step-by-step explanation:

Which equation below represents the situation

A. 3.60(q – 4) + 25.20 = 4.50q

B. 3.60q + 25.20 = 4.50(q + 4)

C. 6.30(q – 4) + 14.40 = 4.50q

D. 6.30q + 14.40 = 4.50(q + 4)

Cost of Cranberry juice = $6.30 per quart

Cost of apple juice = $3.60 per quart.

Let

Cost of q quarts of Cranberry juice = $ 6.30q

Cost of 4 quarts of apple juice = $3.60×4= $ 14.40

Total quarts of cranberry-apple juice mixture = q+4

Terrence wants to make a cranberry-apple juice mixture that costs $4.50 per quart

Total revenue = price × quantity

= $4.50(q+4) (1)

Total cost of the mixture = Cost of q quarts of cranberry juice + cost of 4 quarts of apple juice.

= 6.30q + 14.40 (2)

Equate both equations

$4.50(q+4) = 6.30q + 14.40

It can also be written as

6.30q + 14.40 = 4.50(q + 4)

The correct answer is

D. 6.30q + 14.40 = 4.50(q + 4)

Answer:

$ 26 . 25this is a answer

Answer:

The last answer choice $8.75

Step-by-step explanation:

(35*25)/100

= 875/100

=8.75

Answer:

C

Step-by-step explanation:

1. Identfiy The type therom it is which is alternate interior

2. Find the converse of the alternate interior which is the oppoiste so it has to be alternate exterior angle

Answer:

123 ft

Step-by-step explanation:

create a right angle triangle from the given info.

your perpedicular will be tree height and hypotneus will be 145 feet

sin 45=Tree height/145

122.96=tree height

123 ft

The height of the tree will be equal to 123 feet.

The branch of mathematics that sets up a relationship between the sides and the angles of the right-angle triangle is termed trigonometry.

The trigonometric functions, also known as a circular, angle, or goniometric functions in mathematics, are real functions that link the angle of a right-angled triangle to the ratios of its two side lengths.

Given that a zip line from the tallest tree in the forest to the campsite is 145 feet. The angle of elevation from the ground to the top of the tree is 58°.

Create a right-angle triangle from the given info. your perpendicular will be tree height and your hypotenuse will be 145 feet

sin 45=Tree height/145

122.96=tree height

123 ft

To know more about Trigonometry follow

https://brainly.com/question/24349828

#SPJ2

Answer:No real solutions

Step-by-step explanation:Let's solve your equation step-by-step.

−3x2−4x−4=0

For this equation: a=-3, b=-4, c=-4

−3x2+−4x+−4=0

Step 1: Use quadratic formula with a=-3, b=-4, c=-4.

x=

−b±√b2−4ac

2a

x=

−(−4)±√(−4)2−4(−3)(−4)

2(−3)

x=

4±√−32

−6

This a question about perimeter and equation, let's see how to solve that:

The perimeter of a rectangle is the sum of its 4 sides. In this case, we know that the perimeter is 118. We can do an equation with these datas:

[tex]\boxed{AB + BC + CD + DA = 118}[/tex]

We also know other informations: the side AB is equal to [tex]4y+3[/tex] and de side BC is equal to 3y. In a recltangle, parallels sides have the same value. So, the side CD is equal to [tex]4y+3[/tex] and the side DA is equal to 3y.

Now, we have these datas:

[tex]AB + BC + CD + DA = 118\\\\AB = CD = 4y + 3\\BC = DA = 3y[/tex]

Let's do and solve an equation:

[tex]AB + BC + CD + DA = 118\\\\4y+3 + 3y + 4y+3 + 3y = 118\\14y + 6 = 118\\14y = 118 - 6\\14y = 112\\y = \frac{112}{14} \\y = 8[/tex]

So, the value of y is 8. Let's replace the value of y in the side AB:

[tex]4y + 3\\4\times 8 + 3 = 35[/tex]

Therefore, the length of side AB is 35.

Answer:

28-6=w

Step-by-step explanation:

Answer:

(-5)-4(0.5)=-7

Step-by-step explanation:

(-5)-4(0.5)=-7

-5-2=-7

-7=-7

Answer: -7

Step-by-step explanation:

Answer:

Which paper?...LOL...

Answer:

Step-by-step explanation:

Solving for r

Step-by-step explanation:

a1=ar⁰=12 A2=ar¹=-6

a=12 ar=-6

12r=-6

r=-6/12

r=-1/2

a10=ar⁹

=12*(-1/2)⁹

=12*(-512)

=-3/128

S∞ = a1 / (1-r )

=12/(1-1/2)

=12*1/2

=6

The tenth term of the progression will be -3/128, and the sum to infinity will be 6.

The geometric progression defined as a series represents the sum of the terms in a finite or infinite geometric sequence. The successive terms in this series share a common ratio.

The nth term of a geometric progression is expressed as

Tₙ = arⁿ⁻¹

Where a is the first term, r is the common ratio

We have been given that the first term of a geometric progression is 12 and the second term is -6

So common ratio r = second term/first term = -6/12= -1/2

The tenth term of the progression will be

⇒ ar¹⁰⁻¹ = ar⁹

⇒ 12(-1/2)⁹

⇒ -12(1/512)

⇒ -3/128

The sum to infinity = a / (1-r )

The sum to infinity = 12/(1 - 1/2)

The sum to infinity = 12 × 1/2

The sum to infinity = 6

Thus, the tenth term of the progression will be -3/128, and the sum to infinity will be 6.

Learn more about geometric series here:

brainly.com/question/21087466

#SPJ2