see attachments below

Answer:

15 for 2 = 30km

35 for 1 = 35km

5 for 10 = 50km

30 for 4 = 120km

Step-by-step explanation:

formula is

distance = speed x time

Answer :0.75

Step-by-step explanation:

2x+6x-6=0

2x+6x=6

8x=6

x=6/8

x=0.75

HOPE IT HELPS .... MARK ME BRAINLIEST

Answer:

the answer is... Amelia is 5 feet tall and casts a 4-foot shadow.

A tree next to her casts a 12-foot shadow.

The two triangles formed are similar because the angle to the sun is the same.

Choose two equations that can be used to find the height, h, of the tree.

Step-by-step explanation:

hope it helps

The two equations that can be used to find the height are as follows:

12 / 4 = h  /5

5 / 4 = h  / 12

Similar triangles are not necessarily the same in size. Corresponding angles of similar triangles are congruent. The sides of similar triangle are a ratio of each other.

here, we have,

Amelia is 5 feet tall and casts a 4-foot shadow.

A tree next to her casts a 12-foot shadow.

The two triangles formed are similar because the angle to the sun is the same.

The tree cast a shadow of 12 ft.

Let's establish the proportion base on similar triangles. The height of the tree is h.

Therefore,

h / 12 = 5 / 4

Therefore,

h / 12 = 5 / 4

cross multiply

4h = 60

divide both sides by 4

h = 60 / 4

h = 15 ft

Therefore, the two equations that can be used to find the height are as follows:

12 / 4 = h  /5

5 / 4 = h  / 12

learn more on similar triangles here:

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Answer:

1/3 x 3/11 = 3/33 or 0.09, or 9 percent

Step-by-step explanation:

Answer:

16/144

4/12 × 4/12 = 16/144

The value of x from the figure is 35√2

From the given figur, we have the following parameters

figure

Opposite = 35

Angle = 45 degrees

Required

Hypotenuse  = x

USing the theorem

Sin 45 = 35/x
x = 35/sin45

x = 35√2

Hence the value of x from the figure is 35√2

Learn more on soh cah toa here; https://brainly.com/question/20734777

Answer:

605/110

Step-by-step explanation:

75*11/110

-

22*10/110

=605/110

Answer:

y=-8

Step-by-step explanation:

if x=-2 -2*3= -6, -6+-2=-8

Answer:

-8

Step-by-step explanation:

-2 times 3 is -6, and -6 plus -2 equals -8

The distance between points A and B and the boat is an illustration of elevation and distance

The distance from point A to point B is 346 feet

The height of the lighthouse is given as:

h = 113

The distance between point A and the base of the lighthouse is calculated using the following tangent ratio

[tex]\tan(10) = \frac{113}{A}[/tex]

Make A, the subject

[tex]A = \frac{113}{\tan(10)}[/tex]

[tex]A = 640.85[/tex]

The distance between point B and the base of the lighthouse is calculated using the following tangent ratio

[tex]\tan(21) = \frac{113}{B}[/tex]

Make B, the subject

[tex]B= \frac{113}{\tan(21)}[/tex]

[tex]B= 294.38[/tex]

The distance AB, is then calculated as:

[tex]AB = A - B[/tex]

[tex]AB = 640.85 - 294.38[/tex]

[tex]AB = 346.47[/tex]

Approximate

[tex]AB = 346[/tex]

Hence, the distance from point A to point B is 346 feet

Read more about elevation and distance at:

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Answer:

ABC shaded area = 36[tex]\pi[/tex] - 72   cm²

ABC shaded area perimeter = [tex]6\pi +12\sqrt{2}[/tex]    cm

ABCD area = [tex]\dfrac52 \pi[/tex]  cm²

ABCD perimeter = [tex]3\pi +2[/tex]   cm

Step-by-step explanation:

Shape ABC

Assuming you want the area and perimeter of the shaded part of the shape only...

Area

Area of a sector = [tex]\dfrac12r^2\theta[/tex] (where r is the radius and [tex]\theta[/tex]

⇒ area of a sector = [tex]\dfrac12 \times 12^2\times \dfrac{\pi}{2} =36\pi \ \textsf{cm}^2[/tex]

Area of triangle = 1/2 x base x height

⇒ area of triangle = 1/2 x 12 x 12 = 72 cm²

Therefore, area of shaded area = area of sector - area of triangle

⇒ area = 36[tex]\pi[/tex] - 72 cm²

Perimeter

Arc length = [tex]r\theta[/tex] (where r is the radius and [tex]\theta[/tex]

⇒ arc length = [tex]12\times\dfrac12\pi =6\pi \ \textsf{cm}[/tex]

Hypotenuse of triangle = [tex]\sqrt{a^2+b^2}[/tex] (where a and b are the legs of the right triangle)

⇒ hypotenuse = [tex]\sqrt{12^2+12^2} =12\sqrt{2}[/tex] cm

Therefore, perimeter = arc length + hypotenuse

⇒ perimeter = [tex]6\pi +12\sqrt{2}[/tex]  cm

Shape ABCD

Area

Area of a semicircle = [tex]\dfrac12 \pi r^2[/tex] (where r is the radius)

⇒ area of large semicircle ABC = [tex]\dfrac12 \times \pi \times 2^2=2\pi \ \textsf{cm}^2[/tex]

⇒ area of small semicircle AD = [tex]\dfrac12 \times \pi \times 1^2=\dfrac12\pi \ \textsf{cm}^2[/tex]

⇒ area of shape ABCD = [tex]\dfrac12 \pi + 2 \pi=\dfrac52 \pi \ \textsf{cm}^2[/tex]

Perimeter

1/2 circumference = [tex]\pi r[/tex]

⇒ perimeter = [tex]2\pi +2+\pi=3 \pi+2 \ \textsf{cm}[/tex]

Answer:

Pudge sold 8 tickets, Christi sold 19

tickets, Ace sold 38 tickets

Step-by-step explanation:

x = Pudge

3x - 5 Christi

2(3x-5) = Ace

Let x, 3x - 5 and 2(3x-5) be the tickets

x + (3x- 5) +2(3x - 5) = 65

Combine like terms

x+ (3x - 5) + 6x - 10 = 65

4x -5+6x - 10 = 65

10x - 5-10 = 65

Transpose -5 and -10 and change their

signs

10x = 65 +5+ 10

Add

10x = 80

Divide both sides by 10

10x/10x = 80/10

x =8

Pudge sold 8 tickets.

Evaluate x as 8

3x-5

3(8)-5

24-5 19

Christi sold 19 tickets.

2(3x-5)

2(3(3)- 5)

2(24- 5)

2(19)= 38

Ace sold 38 tickets.

Checking:

x+ (3x - 5) +2(3x - 5) = 65

8+(3(8)-5) +2(3(8) - 5) = 65

8 +19 +38 = 65

65 =65

The percentage of eighth-graders that chose History as their favorite subject is 19%

From the given table, we have the following parameters

Total students in the 8th grade = 124 students

Total number of 8th graders that chose history = 11 + 12

Total number of 8th graders that chose history = 23

Required percentage = 23/124 * 100

Required percentage = 19%

Hence the percentage of eighth-graders that chose History as their favorite subject is 19%

Learn more on percentages here: https://brainly.com/question/24304697

Answer:

fabio=2(carlos)-7

31=2(x)-7

31-7=2x

24=2x

x=12

Step-by-step explanation:

Answer:

590 or 589.89

Step-by-step explanation:

Hope this helps!

Answer:

1380.25

Step-by-step explanation:

So to solve this problem, you find the outside circle and subtract it from the inside circle.

So, lets find the basic values

Radius of inside circle = diameter of the inside circle / 2

                                     = 27.6

                                     = 13.8

Radius of outside part = 11.3

So the area of the outside circle is

A = pi r^2

   = pi (11.3 + 13.8)^2

   = 630.01

   = 1978.23

And the area of the inside circle is

A = pi r^2

  = pi (13.8)^2

   = 190.44

   = 597.98

To find the shaded part, we subtract the outer circle with the inner circle

1978.23 - 597.98 = 1380.25

The area of the shaded region is 1380.25

The given quadratic equation forms a parabola when graphed, a U-shaped line.

To find the minimum value of y, we could find the y-coordinate of the vertex.

The vertex represents the maximum or minimum point on a parabola. It tells us the optimal y-value of the function and the x-value at which it occurs.

For the given quadratic, [tex]y=x^2+6x+7[/tex] the optimal y-value, or the y-coordinate of the vertex, will be a minimum. The [tex]x^2[/tex] value is positive, meaning the parabola will open upwards. (Please see below for an image representation).

There are multiple ways to approach this question.

One way is to rearrange the equation, which is currently in standard form, to vertex form.

Another way is to factor the equation to first find the x-intercepts of the graph, find the x-coordinate of the vertex, then at the end, plug the x-coordinate into the equation to find the minimum y-value.

The second strategy is a bit redundant for this type of question, so we can go about solving it by using the first method.

[tex]y=x^2+6x+7[/tex]

First, we can group [tex]x^2[/tex] and [tex]6x[/tex] by using a set of parentheses:

[tex]y=(x^2+6x)+7[/tex]

Then, we can complete the square:

[tex]y=(x^2+6x+(\dfrac{6}{2})^2)^2+7-(\dfrac{6}{2})^2[/tex]

[tex]y=(x^2+6x+9)^2+7-9\\\\y=(x^2+6x+9)^2-2[/tex]

Apply the rule [tex]a^2+2ab+b^2=(a+b)^2[/tex]:

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

Therefore, the vertex of the quadratic is (-3,-2).

This makes the minimum y-value -2. The x-value at which this occurs is -3.

The minimum y-value -2. The x-value at which this occurs is -3.

Answer:

C. A reflection over the line y = -x

Step-by-step explanation:

You need to reflect that over a line that goes between the two of them. That imaginary line has a rise of -1 (it goes down 1 unit) and a run of 1 (it goes one unit to the right). In other words, the slope is -1. The line should also have a y-intercept of 0 it starts at (0,0).

Put that information in slope-intercept form

y = -1x + 0

You can take out the 0 because it adds nothing to the equation, and you can remove the one because of the same reason, but leave the negative sign.

y = -x

Answer:

a) £397.50
b) £1 ≈ €1.33

Given:

€1 = £0.75
To find out:
a)

€530 = £0.75 × 530

€530 = £397.50

b)

Since £397.50 = €530:

£1 = €530 ÷ 397.5

£1 = €1.33333333333

£1 ≈ €1.33

Answer:

V=2744ft³ is the answer

Answer:

2,744 cubic feet

Step-by-step explanation:

You only need a single measurement, then you multiply it by itself and by itself again, equivalent to raising it to the power of 3. Finally, adjust the unit to its cubic equivalent.  in this case Volume = (Edge of the cube) 3 so 14 x 14 x 14 is 2,744

Answer:

WRONG SUBJECT

Step-by-step explanation:

YOU'RE QUESTIOON WAS DELETED FOR THE WRONG SUBJECT

Answer:

3

Step-by-step explanation:

0.75 out of 1 for 4 is 3

for 4

0.25 is 1

0.5 is 2

0.75 is 3

1 is 4

4/0.65 = 2.15 (not 100% on this one)

Answer:

83.2 meters ÷ 1.28 meters = 65 bows

Answer:

The answer is (1,2) I'm pretty sure that is the answer if it is not please tell me I'll check.

Answer:

A. pen 0.75, pencil 0.50

Step-by-step explanation:

there is 4 of each that means you have to multiply by 4so

0.75 × 4 = 3

0.50 × 4 = 2

add them up equal 5

Answer:

The correct option is A. Pen $0.75; pencil, $0.50

Answer:

x = - 4, x = 5

Step-by-step explanation:

(5x - 25)(x + 4) = 0

Equate each factor to zero and solve for x

x + 4 = 0 ⇒ x = - 4

5x - 25 = 0 ⇒ 5x = 25 ⇒ x = 5

Answer:

x = - 4, x = 5

Step-by-step explanation:

(5x - 25)(x + 4) = 0

Equate each factor to zero and solve for x

x + 4 = 0 ⇒ x = - 4

5x - 25 = 0 ⇒ 5x = 25 ⇒ x = 5

Hence, the correct answer is x=-4, x=5

Answer:

New York

Step-by-step explanation: