If 4x^2 – bx + 81 is a perfect square trinomial. Then the value of b is

Answer:

f(x)= [tex]-\frac{5}{4}x+2[/tex]

Step-by-step explanation:

Answer:

60

Step-by-step explanation:

AOC= AOB+ BOC

104= 7x+30 +9x+42

104= 16x+72

subtract both sides by 72

104-72=16x

32=16x

divide both sides by 16

x=2

BOC= 9(2) +42

BOC= 60

Answer:

60

Step-by-step explanation:

7x +9x +30 + 42=104                                                                                                                16x=104-30-42                                                                                                    16x=32                                                                                                                        x=2                                                                                                             BOC=2*9+42=18+42=60!!

Answer:

y=-3x+2

Step-by-step explanation:

6x-4=-2y

-3x+2=y

y=-3x+2

Answer:

6x + 2y = 4

Step-by-step explanation:

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Given

6x = - 2y + 4 ( add 2y to both sides )

6x + 2y = 4 ← in standard form

Answer:

4x + 7y = 14

Step-by-step explanation:

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Given

y = - [tex]\frac{4}{7}[/tex] x + 2 ( multiply through by 7 to clear the fraction )

7y = - 4x + 14 ( add 4x to both sides )

4x + 7y = 14 ← in standard form

Step-by-step explanation:

the product is basically multiplication

5 multiply by 8 is 40 and 40 divide by 4 is 10 so therefore the answer is 10

ALWAYS remember product is multiplication.

Answer:

10

Step-by-step explanation:

(8 times 5) divided by 4

40 divided by 4

10

Answer: There is no picture!!??

Step-by-step explanation:

Answer:

where is the pic?

Step-by-step explanation:

Answer:

5-13i

Step-by-step explanation:

8-15i-3+2i

5-13i

Answer:

18-7 because the difference is the answer to a subtraction problem

Answer:

the first option

Step-by-step explanation:

plug in (x+1) as "x"

Answer:

= sqrt( x^2+2x+5)

Step-by-step explanation:

G(x) = sqrt(x^2+4)

Replace x with x+1

G(x+1) = sqrt((x+1)^2+4)

FOIL

          = sqrt( x^2 + x+x+1 +4)

Combine like terms

               = sqrt( x^2+2x+5)

Step-by-step explanation:

First, we need to know the formula for finding the volume of a cone.

[tex]V = \frac{1}{3} \pi r^2h[/tex]

[tex]V=volume\\r=radius\\h=height[/tex]

Now that we know the formula for finding the volume of a cone, we can look at the given information from the diagram and plug them into the formula.

[tex]V=\frac{1}{3} \pi (10)^2(25)[/tex]

[tex]V=\frac{1}{3} \pi (100)(25)[/tex]

[tex]V=\frac{1}{3} \pi (2500)[/tex]

[tex]V=2616.6666...[/tex]

[tex]V = 2616.67[/tex]

Lastly, add the measurement units to the final answer which is cm³.

With that being said, the volume of the cone is 2616.67 cm³ which is letter choice C.

Answer:

Step-by-step explanation:

Answer:

I got x=6 on an online algebra calculator.

Step-by-step explanation:

Answer:

x=6

Step-by-step explanation:

2(3x+2) can be expanded = 6x+4

6x+4=2x+28

then you want to minus 4 from both sides

6x=2x+24

then you can minus 2x from both sides

4x=24

then you can divide both sides by 4

x=6

Answer:

The letter C has horizontal symmetry

The letter N has none of the above

Step-by-step explanation:

Answer:

Horizontal and none

Step-by-step explanation:

Answer:

It is 30°

Step-by-step explanation:

Putting the formula exterior angle of a triangle = the sum of 2 interior angles of a triangle.

let the angle be x;

Therefore,

80°+x = 110°

x = ( 110 - 80 )°

x = 30°

Answer:

true

Step-by-step explanation:

Answer:

true

Step-by-step explanation:

hope this helps :)

Answer:

B) 65%

Step-by-step explanation:

1. random

2. random

3. random

3. random

4. random

5. no

So,

the right answers:

20%

12.5%

12.5%

46%

17.5%

40%

Look at the attached picture

Hope it will help you...

Good luck on your assignment..

Answer:

[tex]4.4cm[/tex]

Step-by-step explanation:

[tex]area \\ 9.9 = \frac{1}{2} \times (a + b) \times h \\ 9.9 = \frac{1}{2} \times (2 + 2.5) \times h \\ 9.9 = \frac{1}{2} \times 4.5 \times h \\ 9.9 = \frac{4.5h}{2} \\ 9.9 = 2.25h \\ \frac{9.9}{2.25} = \frac{2.25h}{2.25} \\ h = 4.4 \: \: cm[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

So the right answer is 4.4 cm

Look at the attached picture

Hope it will help you

Good luck on your assignment

Hey there! I'm happy to help!

The first thing to do is find the square root of the area so we know what one of the sides are. Since our answer is supposed to have a radical, we don't need to simplify the radical.

So, each side is just √325.

Now, we multiply this by four to find the perimeter.

4√325

However, we can simplify that. To do this, we will find all of the prime factors of 325. If there are two of a certain number, we will take that number and pull it to the outside of the radical and cancel out both of the numbers inside the radical. So, if you had two 2's inside the radical, you would cancel them out and put a single two on the outside.

4√5×5×13

We can put the five outside

4×5√13

The perimeter is 20√13.

I hope that this helps! Have a wonderful day!

The perimeter of the square, in meters is,

⇒ 72.08 meters

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

Given that;

The area of a square plot of land is 325 square meters.

We know that;

Area of square with side 'a' is,

⇒ Area = a²

Here, The area of a square plot of land is 325 square meters.

Hence, We get;

⇒ a² = 325

⇒ a = √325

⇒ a = 18.02 meters

Hence, The perimeter of a square plot of land is,

⇒ Perimeter = 4a

⇒ Perimeter = 4 × 18.02

⇒ Perimeter = 72.08 meters

Learn more about the rectangle visit:

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Answer:

63.75

Step-by-step explanation:

2^4=16

16x4=64

64-2/8=63.75

because 2/8 can be reduced to 1/4 and 1/4 in decimal form is 0.25.

Answer:

whats the question?

Step-by-step explanation:

heh?

Answer:

6/15

Step-by-step explanation:

Answer:

6/15

Step-by-step explanation:

Answer:

592

Step-by-step explanation:

A=2(wl+hl+hw)

A=2(8*10+12*10+12*8)=592

Answer:

Edges: 2

Vertices: 0

Step-by-step explanation:

Answer: it has 2 edges and no vertices (no corners)

Answer:

175

Step-by-step explanation:

Answer:

An adult gorilla is capable of consuming 18 to 20 kilograms of food everyday.

Step-by-step explanation:

Answer:

the answer to the first question is 9/27, 5/27, 13/27

the answer to the second question is 27/126, 33/126, 20/126, 42/126

the answer to the last question is 32/44

Step-by-step explanation:

they way you solve the fist two questions you just add the numbers up and that will tell you your probability.

for the last question you take the number of players and subtract it by 12 to get the top number

the answer to the first question is [tex]9/27, 5/27, 13/27[/tex].

the answer to the second question is [tex]27/126, 33/126, 20/126, 42/126[/tex].

the answer to the last question is[tex]32/44[/tex].

The probability of an event can be calculated by the probability formula by simply dividing the favorable number of outcomes by the total number of possible outcomes.

P(A) = n(A)/n(S)

P(A) is the probability of an event “A” n(A) is the number of favorable outcomes. n(S) is the total number of events in the sample space.

Three Types of Probability

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