Please help I will give brainlest

Answer:

Step-by-step explanation:

Upper right graph meets both of the requirement, the line lays on both (0,9) on the y axis and (3,0) on the x axis

The equation used to represent the distance between two points A and B is AB  =  x Cos 28°

The equation can be defined as a mathematical statement made up of expressions. The length of the line that connects two points is known as the distance between the two points. A triangle is a closed shape with 3 sides, 3 angles and 3 vertices. Triangle is a 2- dimensional figure.

As per the given question,

Let the hypotenuse be x

The two points A and B are on the base of the triangle so,

Base - length = AB

The distance between the two points is

⇒   cos Θ   =   base / hypotenuse

where,      base = AB

                hypotenuse = x

⇒   cos Θ   =   AB / x

⇒   AB   =   x cos Θ      →   1

Substitute Θ  =  28 in 1,

⇒   AB = x cos 28°

Therefore, AB = x cos 28° is the equation used to represent the distance between two points A and B.

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The complete question is

When θ = 28° , which equation can be used to find the distance from point a to point b?

The coordinate of the circumcenter of a triangle is (1,3).

Here we have to find the coordinates of the circumcenter of a triangle.

Given data:

The vertices of the triangle are:

A = (0,1)

B = ( 2,1)

C= ( 2,5)

The formula to find the distance between the two points:

Distance = [tex]\sqrt{(x2 - x1)^{2} + (y2-y1)^{2} }[/tex]

In the same manner distance between AB, BC, and AC are:

AB = [tex]\sqrt{(2-0)^{2} + (1-1)^{2} }[/tex]

    = 2

BC = [tex]\sqrt{(2-2)^{2} + (5-1)^{2} }[/tex]

      = 4

AC = [tex]\sqrt{(2-0)^{2} + (5-1)^{2} }[/tex]

     = 2√5

So by the Pythagoras, we get to know that the triangle is a right-angle triangle.

The circumcenter of a right-angle triangle is the midpoint of the hypotenuse.

Midpoint of AC = (0+2)/2 , (1+5)/2

                         = 2/2, 6/2

                         = 1,3

Therefore the coordinate of the circumcenter is (1,3).

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Answer:

Figure 1 (The Star)

Step-by-step explanation:

Line symmetry is symmetry created by a line that divides a shape. Only the "star" (Figure 1) and the "A" (Figure 2) can be split through the center into two identical halves, therefore we can rule out Figures 3 & 4. Rotational symmetry is when a shape looks the same after a partial turn. Rotational symmetry is only true for the "star" (Figure 1) which will be symmetric every 72-degree (360/5) turn. However, the "A" (Figure 2) can only be flipped 180 degrees to remain symmetric.

Therefore Figure 1 is the only figure with both rotational and line symmetry.

volume of ball = 5421.85[tex]cm^{3}[/tex]

A sphere is a set of points in space that are a given distance r from the center.

The volume of a 3 -dimensional solid is the amount of space it occupies.  Volume is measured in cubic units( in3,ft3,cm3,m3 , et cetera).  Be sure that all of the measurements are in the same unit before computing the volume.

The volume V of a sphere is four-thirds times pi times the radius cubed.

V=4/3πr^3

The volume of a hemisphere is one-half the volume of the related sphere.

Given that

diameter of ball = 21.8 cm

now we need to find the volume of ball

volume of the sphere =[tex]\frac{4}{3}[/tex] [tex]\pi[/tex][tex]r^{3}[/tex]

diameter = 21.8cm

radius = diameter/2

         = 21.8/2

          =10.9

now substitute the value of radius in the volume formula

volume of ball =[tex]\frac{4}{3}[/tex][tex]\pi[/tex][tex](10.9)^{3}[/tex]

volume of ball = 5421.85[tex]cm^{3}[/tex]

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Answer: the answer is  -1

Answer:

101.25

Step-by-step explanation:

To find the number of students, we need to first determine the total amount earned from the students. We can do this by multiplying the number of people by the cost per student: $3/student * 120 people = $<<3*120=360>>360.

Since the total amount earned was $435 and we know that $360 of that came from students, we can find the number of students by subtracting the total earned from students from the total amount earned: $435 total - $360 from students = $75 from adults.

Since the cost per adult was $4, we can divide the total amount earned from adults by the cost per adult to find the number of adults: $75 / $4/adult = <<75/4=18.75>>18.75 adults.

Since there were 120 people in total and 18.75 of them were adults, there must have been 120 people - 18.75 people = <<120-18.75=101.25>>101.25 students

a. AB = FG, AC = FH, BC = GH

b. Remember that FG is the same as AB. This means that their values are equivalent. Therefore, FG = 9.

c. HG is the same as CB. If CB is 12, then HG must also be 12.

d. To solve for x, we'll need to set up an equation. We can do this by taking one of our known pairs of congruent sides and setting them equal to each other.

AB = FG

AB = 9

FG = 2x + 1

9 = 2x + 1

2x = 8

x = 4

Hope this helps!

The equation of the line that passes through the points (2, 1 ) and (4,5) in the Cartesian coordinate plane is y = (2/3)(x - 4) + 5.

By subtracting the y coordinates [5 - 1] = 4, we get

Subtract the x coordinates in the same order  [4 - (-2)]  = [4 + 2] = 6

The slope is given by  y-coordinate/x-coordinate = 4/6  = 2/3.

Now, just choose one point say (4,5), and substitute the coordinates in this formula-

y - [y-coordinate of our point] - (slope)* [ x - ( the  x-coordinate of our point)]

y - 5  = (2/3)(x - 4)      ...........(adding 5 to both sides)

y = (2/3)(x - 4) + 5    

Hence, the equation of the line in the "slope-intercept" form is y = (2/3)(x - 4) + 5.

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The complete question is -

what is the equation of the line that passes through the points (-2,1) and (4,5) in the cartesian coordinate plane?

Answer:

1,728 small cubes are needed to completely fill a larger cube with side lengths of 30 cm.

Step-by-step explanation:

The value of m∠IJK is 19.

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

               I

            /    \

         /         \

      /               \

H /                      \ J                       K

Now,

m∠JHI = (x+12)

m∠HIJ = (x−3)

m∠IJK = (5x−6)

The sum of the angles in the triangle IHJ is 180 degrees.

m∠JHI + m∠HIJ + m∠IJH = 180

x + 12 + x - 3 + m∠IJH = 180

2x + 9 + m∠IJH = 180

2x + m∠IJH = 180 - 9

2x + m∠IJH = 171

m∠IJH = 171 - 2x ____(1)

Now,

m∠IJK = 180 - m∠IJH

5x - 6 = 180 - m∠IJH

m∠IJH = 180 - 5x + 6

m∠IJH = 186 - 5x _____(2)

Now,

From (1 ) and (2) we get,

186 - 5x = 171 - 2x

186 - 171 = 5x - 2x

15 = 3x

x = 5

Now,

The value of m∠IJK.

= 5x - 6

= 5 x 5 - 6

= 25 - 6

= 19

Thus,

m∠IJK value is 19.

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The count increase in the alien bacteria at the midnight is 31692.

Here we have to find the count of alien bacteria at midnight.

Data given:

Count of alien bacteria at 5 pm = 26,300

Percentage increase in bacteria per hour = 2.7%

increase = 1 + 2.7/100

               = 102.7

time = 12 - 5 = 7

The count of alien bacteria at midnight = 26,300 ×( 1.207 [tex])^{7}[/tex]

                                                                 =  31692

Therefore the alien bacteria at midnight is 31692.

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Answer:

c.philiippines

Step-by-step explanation:

exporting (present participle)

send (goods or services) to another country for sale:

The equation of the graph is  f(x)=-2x+5.

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

Let us take any two points from the graph to find the equation of the graph.

(-1, 3) and (2, -3)

Let us find the slope of line.

m=-3-3/2+1

m=-6/3=-2

Slope of line is -2 and now we find the y intercept.

y=-2x+b

3=-2(-1)+b

3+2=b

5=b

Hence, f(x)=-2x+5 is the equation of the graph.

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keeping in mind that a function does not have any X-Repeats, that is, the 1st coordinate in every pair never repeats, that is, the INPUT never repeats, Check the picture below.

now, to check on the graph if it's a function or not, simply recall the vertical line test, if you can draw a vertical line on the graph and it only touches it ONCE, then it's a function, if however a vertical line touches it more than once, then is not.

The equation of a line with point (0,5) and gradient 3 in the form of y = mx + c is y = 3x + 5.

The point slope form of the equation to be used for finding the equation is -

y - [tex] y_{1}[/tex] = m (x - [tex] x_{1}[/tex] )

As per the mentioned information, m or slope is 3, [tex] y_{1}[/tex] is 5 and [tex] x_{1}[/tex] is 0. Keep the values in point slope form to find the equation.

y - 5 = 3 (x - 0)

Performing multiplication on Right Hand Side

y - 5 = 3x - 0

Shifting 5 to Right Hand Side

y = 3x + 5

Thus, the answer is y = 3x + 5.

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Answer:

The slope of the line is 1

Step-by-step explanation:

gradient = difference of y-coordinates / difference of x-coordinates

gradient = (y2-y1) / (x2-x1)

gradient = 50-30 / 5-(-15)

gradient = 20/20

gradient = 1

Answer:

26,705

Step-by-step explanation:

First find 9% of 24500

24500 x 0.09 = 2205

Second add 2205 + 24500

2205 + 24500 = 26,705

By using tangent chord angle formula, the measure of angle FGH is 50°.

What is tangent chord angle?
The angle formed by the chord in the alternate segment is equal to the angle formed by the tangent through the point of contact of the tangent for any circle, according to the theorem.

Another name for the tangent-chord theorem is the alternate segment theorem.
We have to find the m ∠FGH.
Since, by tangent - chord angle theorem, the measure of a tangent-chord angle is twice the measure of the intercepted arc inside the angle.
GH = 2(m ∠FGH)⇒ m ∠FGH = 1/2(GH)
Here GH = 100° ⇒ m ∠FGH = 1/2(100°) m ∠FGH = 50°
Hence, by using tangent chord angle formula, the measure of angle FGH is 50°.

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The inequality graphed on the given image is the one in option B, the inequality is:

x > -2.

On the graph, we can see an inequality. We can see a vertical line and all the region to the right of that line is shaded.

The vertical line is x = -2

If the right side of that is shaded, then all the points (x, y) with a value of x larger than -2 are solutions, then the inequality is just:

x > -2

Then the correct option is B.

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Answer:

[tex]\boxed{\boxed{\tt x=\frac{1}{5}}\: \bf Or\:\boxed{\tt x=0.2}}[/tex]

Step-by-step explanation:

[tex]\tt 50x=10[/tex]

Divide both sides by 50:-

[tex]\tt \cfrac{50x}{50}=\cfrac{10}{50}[/tex]

Simplify:-

[tex]\tt x=\cfrac{1}{5}[/tex]

_____________________

Hope this helps!

Have a great day!

Answer:

325.6g

Step-by-step explanation:

weight of phone + weight of case

= 310 + 15.6

= 325.6g

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To dilate a rectangle means to either expand or contract the size of rectangle without changing it's shape .

Dilation is where the polygon grows or shrinks but keeps the same overall shape.

To dilate a rectangle means to either expanding or contracting the rectangle without changing it's shape .

For example: Assume that, the origin (0, 0) be the center of dilation in the coordinate plane.

Let ABCD be a Rectangle in the coordinate plane. The points in the coordinate planes are A(-2, 2), B(3, 2), C(3, -2), D(-2, -2)

To dilate this rectangle by factor 3 , then every coordinate point of the original triangle will multiplied by the scale factor

Coordinates of new rectangles : A'(-4,4) , B'( 6, 4) ,C(6, -4) and D'(-4,  -4)

Therefore, When we dilate a rectangle by scale factor 2 ,

The rectangle has enlarge it's size .

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With one third of a serving remaining, there are 17 servings are there in a box that holds 13 cups.

Given that:

Each cup holds a bit more than 1 serving, so we know there are at least 13 servings in a box.

We need to know how many servings of 3/4 cup can be obtained from 13 cups.

now we need to divide 13 by 3/4

=13 ÷ 3/4  

= 13 × 4/3

= 52/3

= 17[tex]\frac{1}{3}[/tex]

With one third of a serving remaining, there are 17 servings total.

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Answer:

they are equivalent when m = 1

Step-by-step explanation:

-5(3m-7) = -15+35

-5(3m-7) = 20

-15m+35 = 20

-15m+35 = 20

-15m = -15

m = 1

Answer: B

Step-by-step explanation:

Step-by-step explanation:

convert, Keep Change Flip, convert back

[tex]\frac{23}{4} * \frac{2}{7}[/tex]

[tex]\frac{46}{28} \\[/tex]

[tex]1\frac{18}{28}[/tex]

The number of hours taken by Meredith to edit a textbook if she works alone is 20 hours and time taken by Phil alone to edit text book is 60 hours..

Given that, Phil and Meredith work for a book publisher editing mathematics textbooks.

The basic concept of Time and Work is similar to that across all Arithmetic topics, i.e. the concept of Proportionality. Efficiency is inversely proportional to the Time taken when the amount of work done is constant.

Let the time taken by Meredith be x.

Phil has less experience and takes three times​ as long as Meredith to edit a textbook.

So, time taken by Phil be 3x.

Now, 1/x +1/3x =1/15

⇒ (3+1)/3x =1/15

⇒ 4/3x =1/15

⇒ 4/x =1/5

⇒ x=20 hours

So, time taken by Phil =3x =60 hours

Therefore, the number of hours are 60 hours.

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