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A parabola has the equation y = 2x2 + bx - 4 and the equation for the axis of symmetry is x = 3.

What is the value of b?

Answer:

...

Step-by-step explanation:

14, 18, 20

Answer:

14

16 (which is given)

18

20

Step-by-step explanation:

Answer:

X is 24.

Step-by-step explanation:

Divide the surface area by 4

x=10

First you

do 4*4 then u put a random number an start from 1 so with ten it would

be 4*10/2*4=96

Answer:

(5y-6)^2

Step-by-step explanation:

Note that the polynomial 25y^ 2  −60y+36 is a perfect square trinomial, so we will use the following formula.

A ^2 −2AB+B^2 =(A−B) ^2

In this example we have A=5y and B=6 so,

25y^2 −60y+36=(5y−6)^2

Answer:

$86.40

Step-by-step explanation:

You add 40+25+15=80 and then you multiply 80 X 1.08

Answer:

10

Step-by-step explanation:

Equation : 3x + 2 = 32

3x=30

x=10

Answer:

The answer is SPHERE

Step-by-step explanation:

i took the flvs test and got it correct

There is a circular cross-section with a center at (1, 1) and radius of 1 is rotated about the line y = 1 so it should be a sphere.

It is the geometrical object that contains the three-dimensional where it analog the two-dimensional circle.

It is the set of the point that have the similar distance with respect to the three-dimensional space

Hence, the third option is correct.

Learn more about an object here: https://brainly.com/question/24696684

Answer:

Greenland.

North America.

South America.

Europe.

The Middle East.

North Africa.

Sub- Saharan Africa.

Asia.

Step-by-step explanation:

Answer:

A. Square for Ape.x

Step-by-step explanation:

Answer:

the given amount percentage is $15, $9 and $12 respectively

Step-by-step explanation:

The percentage of the given amounts are shown below:

a. 60% of $25 = $15

b. 25% of $36 = $9

c. 10% of $120 = $12

Hence, the given amount percentage is $15, $9 and $12 respectively

Answer:

84

Step-by-step explanation:

180-51-45=84

I think this would be the answer since triangles add up to be 84 and we are just finding the last missing angle.

hope this helps :)

Answer:

the answer is c - 84

Step-by-step explanation:

every triangle adds up to 180, so if you subtract 51 and 45 from 180, you will get 84

i hope this helps, have a great day :)

Answer:

A- 7 is the answer

Step-by-step explanation:

Answer: I don't know  what the answer but I think its 5

Step-by-step explanation:

Because the line is going up

Answer:

The answer is 5

Step-by-step explanation:

Answer:

y=22.5

Step-by-step explanation:

Answer:

it should be 43 percent left

Step-by-step explanation:

Answer:

58.5

Step-by-step explanation:

Split the figure into three shapes; square, trinagle, and rectangle.

Square is 3 ⋅ 3 = 9

Triangle's sides are 3 and 11 so...

(3 ⋅ 11)/2 = 16.5

Rectangle is 3 ⋅ 11 = 33

Once you have the area of all the figures, you just add them together so...

9 +16.5 + 33 = 58.5

Answer:

area of the figure= 58.3ft²

Step-by-step explanation:

area of the figure= area of trapezoid+ area of a rectangle

area of the figure= [½(a+b)*height]+ (length*breadth)

area of the figure= [½(3+14)*3]+ (11*3)

area of the figure=25.3+ 33

area of the figure= 58.3ft²

Answer:

3x³ + 12x² - 7x - 28

Step-by-step explanation:

(f • g)(x) = f(x) × g(x)

= (x + 4)(3x² - 7)

Each term in the second factor is multiplied by each term in the first factor, that is

x(3x² - 7) + 4(3x² - 7 ) ← distribute both parenthesis

= 3x³ - 7x + 12x² - 28

= 3x³ + 12x² - 7x - 28

Answer:

73.3 km/h

Step-by-step explanation:

Average rate of speed = total distance/total time

First distance is 160

Second distance = rt = 85(2) = 170

total distance = 160 + 170 = 330

total time = 2.5 + 2 = 4.5

Average speed = 330/4.5 = 73.3 km/h

Answer:

Adult ticket is $15

Child ticket is $5

Step-by-step explanation:

Let x = adult ticket price

     y = child ticket price

2x + 3y = 45          2x + 2y = 40

-2x - 2y = -40

          y = 5            2x + 2(5) = 40

                                 2x + 10 = 40

                                 2x = 30

                                   x = 15

The prices of the adult movie tickets and the child movie tickets are $15 and $5 respectively.

Given that, the Jones family spent $45 on movie tickets for 2 adults and 3 children.

A system of linear equations consists of two or more equations made up of two or more variables such that all equations in the system are considered simultaneously. The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.

Let cost of adult tickets be x and the cost of children tickets be c.

The Jones family spent $45 on movie tickets for 2 adults and 3 children.

2a+3c=45 ------(I)

The Smith family spent $40 for 2 adults and 2 children.

2a+2c=40

a+c=20 ------(II)

From equation (II), we have a=20-c

Substitute a=20-c in equation (I), we get

2(20-c)+3c=45

⇒ 40-2c+3c=45

⇒ c=$5

Put c=5 in equation (II), we get

a+5=20

⇒ a=$15

Therefore, the prices of the adult movie tickets and the child movie tickets are $15 and $5 respectively.

To learn more about the linear system of an equations visit:

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Answer:

14.62= d divided by 4

Answer:

D. [tex]a = 0.01025[/tex], [tex]b = 1[/tex]

Step-by-step explanation:

Mathematically speaking, an exponential function is a trascendental function of the form:

[tex]y = a^{b\cdot x}[/tex] (1)

Where:

[tex]a[/tex] - Initial amount.

[tex]b[/tex] - Growth factor.

[tex]x[/tex] - Independent variable.

[tex]y[/tex] - Dependent variable.

Let [tex]y = 0.01025^{x}[/tex], by direct comparison we find that values for initial amount and growth factor are, respectively:

[tex]a = 0.01025[/tex], [tex]b = 1[/tex]

Therefore, correct answer is D.

Answer:

27.37 and 9.18

Step-by-step explanation:

(4)

Using the cosine ratio in the right triangle

cos64° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{12}{x}[/tex] ( multiply both sides by x )

x × cos64° = 12 ( divide both sides by cos64° )

x = [tex]\frac{12}{cos64}[/tex] ≈ 27.37 ( to the nearest hundredth )

(5)

Using the sine ratio in the right triangle

sin35° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{x}{16}[/tex] ( multiply both sides by 16 )

16 × sin35° = x , then

x ≈ 9.18 ( to the nearest hundredth )

Answer: 34 questions right

Turn 85% into a decimal so .85 then multiply by 40 to get 34

Step-by-step explanation:

Answer:

The answer is D, -2. brainliest pls! :D

Step-by-step explanation:

-2*3=-6

-6+4=-2

-2*1/2=-1

-1=1/2x

1/2*-2=-1

-1=-1

The value of x such that it will make the given expression  (1/2)(3x+4)=(1/2)x true is x = - 2 therefore, option (D) will be correct.

A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.

An expression is a mathematical proof of the equality of two mathematical expressions.

As per the given expression,

(1/2)(3x+4)=(1/2)x

(3/2)x + 4/2 = x/2

3x/2 + 2 = x/2

3x/2 - x/2 = -2

(3x - x)/2 = -2

2x = -4

x = -2

Hence "The value of x such that it will make the given expression  (1/2)(3x+4)=(1/2)x true".

To learn more about expression,

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Answer:

1. 14 = 2 + 12

2. 16 = 4 + 12

3. 18 = 6 + 12

4. 20 = 8 + 12

Step-by-step explanation:

Super easy. All you do is replace the numbers in your table with the corresponding letter. In this case we have a table of s and f.

Example for row two: f = s + 12. Replace s with 4 ( 4 is from your s column so you would replace it with that) then solve and plug in your answer (When you solve your answer, it will go under f column).16 = 4 + 12 . f = 16, s = 4.

Formula = f = s + 12.

1. 14 = 2 + 12

2. 16 = 4 + 12

3. 18 = 6 + 12

4. 20 = 8 + 12

Answer:

Step-by-step explanation:

6p + 3 = 3*2*p + 3

           = 3(2p + 1)

Answer:

<

Step-by-step explanation:

the inverse of -18 is +18. +18 is less than 19

Answer:

A

Step-by-step explanation:

1.9 about 2, and 4.4 is about 4.

2x4=8

So it is safe to say between 4 and 10.