PLEASE HELP SOON I ONLY NEED HELP WITH NUMBER 18 PICTURE IS INCLUDED

Answer:

i don't under stand this question but i think its because its supposed to stop at a certain time

Step-by-step explanation:

Answer:

The train is used to transfer people and instead of roads it uses railroad tracks. The train knows the way.

Step-by-step explanation:

Answer:

$41

Step-by-step explanation:

If we multiply 3 times 12 equals 36 plus $5 for delivery which equals $41.

Hope this helps!!! PLZ MARK BRAINLIEST!!

Answer:

41$

Step-by-step explanation:

12$ * 3 + 5$ = 41$

(would really appreciate the brainliest)

Answer:

Measure of one Vertical Angle; 96°

Step-by-step explanation:

Here the measure of one of these vertical angles ⇒ 96°, explained in the attachment below;

Answer:

f(x) = |x + 1| + 1

Step-by-step explanation:

A reflection over the y-axis followed by a reflection over x-axis is equivalent to a reflection about origin.

f(x) = -|x-1| -1

reflection over the x-axis:

-f(x) = (-1)*(-|x-1| -1) = |x-1| +1

reflection over the y-axis of the previous function:

-f(-x) = |-x-1| +1 = |x + 1| + 1

which is the reflection of f(x) about the origin

We have been given graph of a downward opening parabola with vertex at point [tex](6.5,42.25)[/tex]. We are asked to write equation of the parabola in standard form.

We know that equation of parabola in standard form is [tex]f(x)=ax^2+bx+c[/tex].

We will write our equation in vertex form and then convert it into standard form.

Vertex for of parabola is [tex]y=a(x-h)^2+k[/tex], where point (h,k) represents vertex of parabola and a represents leading coefficient.

Since our parabola is downward opening so leading coefficient will be negative.

Upon substituting coordinates of vertex and point (0,0) in vertex form, we will get:

[tex]0=-a(0-6.5)^2+42.25[/tex]

[tex]0=-a(42.25)+42.25[/tex]

[tex]-42.25=-a(42.25)+42.25-42.25[/tex]

[tex]-42.25=-42.25a[/tex]

[tex]a=1[/tex] Divide both sides by [tex]-42.25[/tex]

So our equation in vertex form would be [tex]f(x)=-(x-6.5)^2+42.25[/tex].

Let us convert it in standard from.

[tex]f(x)=-(x^2-13x+42.25)+42.25[/tex]

[tex]f(x)=-x^2+13x-42.25+42.25[/tex]

[tex]f(x)=-x^2+13x[/tex]

Therefore, the equation of function is standard form would be [tex]f(x)=-x^2+13x[/tex].

Answer:

4. (x+3)^2 =16

Step-by-step explanation:

Rewrite x^2 +6x -7 = 0 in quadratic form by compliting the square

x^2 +6x = 7 divide 6 by 2 ans square so 6/2 = 3, [tex]3^{2} = 9[/tex] add 9 on each side

x^2 +6x +9 = 7+9 =16 remember that [tex](a + b)^{2} = a^{2} +2ab + b^{2}[/tex]

[tex](x +3)^{2} = 16[/tex]

use this site if it helps for your question desmos.com

Answer:

Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

Step-by-step explanation:

Faces/ Sides Shape

6 Cube

8 Octahedron

10 Pentagonal trapezohedron

12 Dodecahedron

Answer:

They are in the shape of a cube

Step-by-step explanation:

Answer:

180 in^3

Step-by-step explanation:

5•18=90in^2

90•2=180in^3

Answer:

x<-1 and x>2

Step-by-step explanation:

The domain is the values that input can b, in this case x

X can be less than -1

x< -1  

X can be greater than 2

x>2

x<-1 and x>2

Answer:

The difference of 12.4 and a quotient of and a number because when it says quotient it is talking about division and you are not dividing anything.

Step-by-step explanation:

"The difference of 12.4 and a quotient of and a number" is not a translation of the algebraic expression.

One mathematical expression makes up a term. It might be a single variable (a letter), a single number (positive or negative), or a number of variables multiplied but never added or subtracted. Variables in certain words have a number in front of them. A coefficient is the number used before a phrase.

Given:

An algebraic expression 12.4 - 36.

The equivalent expressions are:

1). 12.4 minus 3 times a number 6.

Let a = 6

That means, 12.4 - 3(6)

2). The product of 3 and a number subtracted from 12.4.

Let a = 6

That means, 12.4 - 3(6)

3). The difference of 12.4 and a quotient of and a number.

That means,

12.4 - 3/6

4). The difference of 12.4 and 3 times a number.

Let a = 6

That means, 12.4 - 3(6)

Therefore, "The difference of 12.4 and a quotient of and a number" is a required expression.

To learn more about the expression;

brainly.com/question/24242989  

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Hi!

I'm Happy to help you today!

The answer would be B. or 42,240!

The reason is because if you do the math and all that it gives you the answer of 42,240 or B. !

-LimitedLegxnd

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Answer:

D

Step-by-step explanation:

There is a common difference d between consecutive terms, that is

d = - 1 [tex]\frac{1}{2}[/tex] -(- [tex]\frac{1}{2}[/tex] ) = - 1

d = -  2 [tex]\frac{1}{2}[/tex] - (- 1 [tex]\frac{1}{2}[/tex] ) = - 1

d = - 3 [tex]\frac{1}{2}[/tex] - (- 2 [tex]\frac{1}{2}[/tex] ) = - 1

This indicates the sequence is arithmetic with explicit formula

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = - [tex]\frac{1}{2}[/tex] and d = - 1 , thus

[tex]a_{n}[/tex] = - [tex]\frac{1}{2}[/tex] - 1 (n - 1) = - [tex]\frac{1}{2}[/tex] - n + 1 = [tex]\frac{1}{2}[/tex] - n , where n = 1, 2, 3, 4, ......

Answer:7

Step-by-step explanation:

[tex]volume = lwh \\ = 15 \times 4 \times 5 \\ = 300 {in}^{3} [/tex]

hope this helps

brainliest appreciated

Good luck! have a nice day!

Answer:

The length of the prism is

✔ 15

in.

The width of the prism is

✔ 4

in.

The height of the prism is

✔ 5

in.

The volume of the prism is

✔ 300

in.3.

Step-by-step explanation:

On EDG assignment

Answer:

11 inches tall

2090/190ft =11 inches

1inch=190ft

11x190

2090ft

Step-by-step explanation:

Answer:

11 inches

Step-by-step explanation:

We can use ratios to solve

1 inch          x inches

------------ = --------------

190 ft          2090 ft

Using cross products

1 * 2090 = 190 * x

Divide each side by 90

2090/190 = 190x/190

11 =x

11 inches

Answer:

Step-by-step explanation:

Three times a number x :  3x

Three times a number x increase by 4:  3x +4

Five  times the number x: 5x

5x = 3x +4

Subtract 3x from both the sides.

5x - 3x = 3x +4 - 3x

2x = 4

Divide both sides by 2

2x/2 = 4/2

x=2

The number is 2

Answer:

-0.0833

Step-by-step explanation:

Answer:

8/24 = 1/3

1/3 = 0.3333

0.3333 = 35%

Step-by-step explanation:

Answer:

(8 / 24) x 100 = 33.33 %

Step-by-step explanation:

31%is the answer i think

Answer: Each player has two rooks (formerly also known as castles), which begin the game on the corner squares a1 and h1 for White, a8 and h8 for Black.

Step-by-step explanation: Mark me as brainliest

Answer:no

Step-by-step explanation:

A function must have each x value map onto 1 y value. The x value 11 maps to two y values (1,3)

Answer:

288π

That is exact value in terms of pi.

Step-by-step explanation:

So if the diameter is 12, the radius is 6.

The volume of a sphere is [tex]\frac{4}{3} \pi r^3[/tex]

Since r = 6, the volume is [tex]\frac{4}{3} * 216\pi[/tex]

Which is 288π

Answer:

904.78 is the answer

volume = 4/3 π r cubed

Answer:

x + 1| + 3 g(x) = |x + 3| – 1 g(x) = |x – 1| + 3 g(x) = |x + 3| + 1

Step-by-step explanation:

Answer:

g(x) = |x – 1| + 3

Step-by-step explanation:

Definitely right!

So the right answer is 8/5

Look at the attached picture

Hope it will help you

Good luck on your assignment

Think of the 2 in this problem as 2/1.

So we have 2/1 × 8/10.

Now we can cross-cancel the 2 and 10 to 1 and 5.

So we have 1/1 × 8/5 which is 8/5.

Answer:

10^-3 is 1/1000 and 2^-3 is 1/16

Step-by-step explanation

Answer:

I think the correct answer is 10^-3 1/1000 and 2^-3 is 1/16

Step-by-step explanation:

-edit: The other user copied my answer! ^_^

Step-by-step explanation:

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To rationalize the denominator of [tex]\frac{2\sqrt{10} }{3\sqrt{11} }[/tex] you should multiply the expression by [tex]\frac{\sqrt{11} }{\sqrt{11} }[/tex]

Given the surd function:

For the surd function given, to rationalize it, we only need to multiply the numerator and denominator by √11 as shown:

[tex]=\frac{2\sqrt{10} }{3\sqrt{11} }\times \frac{\sqrt{11} }{\sqrt{11} } \\=\frac{2\sqrt{110}}{3(11)}\\= \frac{2\sqrt{110}}{33}\\[/tex]

Hence we can conclude that to rationalize the denominator of [tex]\frac{2\sqrt{10} }{3\sqrt{11} }[/tex] you should multiply the expression by [tex]\frac{\sqrt{11} }{\sqrt{11} }[/tex]

Learn more about surd functions here: https://brainly.com/question/24380382

Answer: D) The y-intercept of g(x) is equal to 2 times the y-intercept of f(x)

Answer:

D

Step-by-step explanation:

Have a good day! :D

Answer:

x = (3 − √5) / 2, (3 + √5) / 2, and 1

Step-by-step explanation:

Using rational root theorem, ±1 are possible roots.  By trial and error, we find that +1 is a root.  Therefore, x − 1 is a factor.  Knowing this, we can use grouping or long division.  Using grouping:

x⁴ − 5x³ + 8x² − 5x + 1 = 0

x⁴ − 5x³ + 4x² + 4x² − 5x + 1 = 0

x² (x² − 5x + 4) + 4x² − 5x + 1 = 0

x² (x − 4) (x − 1) + (4x − 1) (x − 1) = 0

(x² (x − 4) + 4x − 1) (x − 1) = 0

(x³ − 4x² + 4x − 1) (x − 1) = 0

Repeating the process, possible rational roots of x³ − 4x² + 4x − 1 are ±1.  We already know -1 isn't a root.  By trial and error, we find that +1 is again a root.  Using grouping to factor:

(x³ − 4x² + 3x + x − 1) (x − 1) = 0

(x (x² − 4x + 3) + x − 1) (x − 1) = 0

(x (x − 3) (x − 1) + x − 1) (x − 1) = 0

(x (x − 3) + 1) (x − 1) (x − 1) = 0

(x² − 3x + 1) (x − 1)² = 0

To find the roots of x² − 3x + 1, we use the quadratic formula.

x = [ -(-3) ± √((-3)² − 4(1)(1)) ] / 2(1)

x = [ 3 ± √(9 − 4) ] / 2

x = (3 ± √5) / 2

So the roots are x = (3 − √5) / 2, (3 + √5) / 2, and 1.