9th Grade Math - Geometry

Given: B is the midpoint of AC.
C is the midpoint of BD.
Prove AB = CD

Answer in two-column proof format, please.

   The function g(x) is a quadratic function:

 Functions are algebraic expressions that have at least two variables, in order to make their visual representation through a graph and evaluate their behavior.

 This problem deals with linear or quadratic functions, and these differ in the degree of the exponent of the variable:

  1 : linear

  2 : quadratic

  The function:

g(x) = -2x² - 3(x- 2).

g(x) = -2x² - 3x + 6 , we have a quadratic function.

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150 is   the cost of renting a car from YourPal.

What is surface area of cuboid ?

Proxy car equation: y = 0.32x + 18

YourPal equation: y = 0.36x + 12

Set equations right sides equal to each other... meaning their cost, y, are equal

0.32x + 18 = 0.36x + 12

18 = 0.04x + 12  (subtract 0.32x from both sides of the equation)

6 = 0.04x            (subtract 12 from both sides of the equation)

150 = x               (divide both sides of the equation by 0.04)

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Answer:

yes I need help

Step-by-step explanation:

I don't understand it very well.

Answer:

6

Step-by-step explanation:

Let the amount of cars washed be x

120-12

---------- = x

18

108/18 =x

x=6

Answer:

Step-by-step explanation:

False inequality, so no solutions.

The largest integer of the three even consecutive integers is 24

We have been given that there are 3 even consecutive integers.

Let the first integer be = x

Let the second integer be = (x+2)

Let the third integer be = (x+4)

According to the question, the equation according to the condition given will be

x + 3(x+2) = 38 + 2(x+4)

Solving the equation, the value of x will be

x + 3x + 6 = 38 + 2x + 8

4x + 6 = 46 + 2x

2x = 40

x =20

Hence, the integers are

            first term = x =20

            Second term = x+2 = 20+2 = 22

           Third term = x+4 = 20+4 = 24

Thus the largest integers is 24

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Answer:

B

Step-by-step explanation:

-20+-32.5= -52.5

-52.5+ 40= -12.5

Answer:

Step-by-step explanation:

The length and the width of the rectangle basee on the perimeter will be 2 and 4cm.

How to calculate the value?

From the given rectangle,

Length of the rectangle = 5 cm

Width of the rectangle = 10 cm

Ratio of length : width = 1 : 2

Perimeter of the rectangle = 2(l + b)= 150 cm

l + b = 75 -----(1)

Since, l : b = 1 : 2

b = 2l ------(2)

From equations (1) and (2)

l + 2l = 75

3l = 75

l = 75/3

l = 25 m

Width 'b' = 2(25) = 50 m

Now we have to draw a rectangle with a scale = 25 : 2

Therefore, the scale factor =

l = 2 cm

Similarly,

w = 4 cm

Now we can draw a rectangle with length = 2 cm and width = 4 cm.

Using translation concepts, the equation for the translated graph is given by:

g(x) = |x + 2| + 1.

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction either in it’s range(involving values of y) or in it’s domain(involving values of x). Examples are shift left/right or bottom/up, vertical or horizontal stretching or compression, and reflections over the x-axis or the y-axis, or rotations of a degree measure around the origin.

From the graph, we have that the parent function was:

Hence, considering the parent function f(x) = |x|, the equation for the translated graph is given by:

g(x) = |x + 2| + 1.

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The equation of the line y = -3x + 17 would have a graph that is shown in the diagram attached below.

Given that the line y = -3x + b goes through the point B(5, 2), it means that the slope (m) of the line would be -3, while the line would intercept the y-axis at b.

To find the value of b, substitute (x, y) = (5, 2) into y = -3x + b:

2 = -3(5) + b

2 = -15 + b

2 + 15 = b

17 = b

b = 17

Thus, the equation of the line y = -3x + 17 would have a graph that is shown in the diagram attached below.

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The Probability of P(F/E) is 0.5  .

Baye's Theorem helps in finding the conditional probability probability of an event A given that event B has already occurred.

For Example : The probability of event A given that event B has already occurred is denoted by P(A/B) and is calculated by

[tex]P(A/B)=\frac{P(A.and.B) }{P(B)}[/tex]

It is given in the question that

P(E and F)=0.1      and  

P(E)=0.2

Using Baye's Theorem ,we get

[tex]P(F/E)=\frac{P(F .and .E)}{P(E)}[/tex]

Substituting the values ,we get

[tex]P(F/E)=\frac{0.1}{0.2}\\ \\ =\frac{1}{2} \\ \\ =0.5[/tex]

Therefore , the probability of P(F/E) is 0.5  .

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Answer:

The segment bisector of RS is KM and RS Lenght is 34CM

Step-by-step explanation:

17+17=34

Answer: i believe your answer is 21x=100

Step-by-step explanation: hope this helps

By applying the exponent rule of division, the equivalent expression to  [tex]r^m \div r^n[/tex] is: A. [tex]r^{m - n}[/tex].

Given the expression, [tex]r^m \div r^n[/tex], we can find the expression that is equivalent to it by rewriting the expression as shown below:

r^m ÷ r^n

According to the exponent rule of division, if we are to divide two bases together that have the same same base but different exponents, what we only need to do is to subtract their powers.

We would apply this same rule in this given problem.

Applying the exponents rule of division, we would subtract the powers:

r^m ÷ r^n = r^(m - n)

Therefore, by applying the exponent rule of division, the equivalent expression to  [tex]r^m \div r^n[/tex] is: A. [tex]r^{m - n}[/tex].

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If m FH = (31x + 3°), m GH = (33x + 3°) and m ∠FHG = (28x − 3°) then the measure of ∠FGH is 48°.

Given: m FH = (31x + 3°), m GH = (33x + 3°) and m ∠FHG = (28x − 3°)

Based on the above information, we get

m FG = 2(m ∠FHG) = 2(28x - 3)°= (56x - 6)°

The arcs in the circle add up to 360 degrees, then

m FG + m FH + m GH = 360°

120x = 360°

x = 3

Substitute the value of x in  m ∠FHG in we get

28(3) - 3 = 81°

The measure can be found using the triangle sum theorem (all angles in a triangle must add up to 180°).

Firstly, it is known that ∠GFH would be an inscribed angle if the chord from F to G is drawn, and the arc GH would be twice its measure.

m GH = 33(3) + 3 = 102°

Half of that would be m ∠GFH = 51°

According to the triangle sum theorem all angles of the triangle must add up to 180°:

Therefore, m ∠GFH+ m ∠FGH +m ∠FHG= 180°

m ∠FGH = 48°

Therefore, the measure of ∠FGH is 48°.

The complete question is:

Given: circle k(O), m FH = (31x + 3°) m GH = (33x + 3°)

m ∠FHG = (28x − 3°) Find: m ∠FGH

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A quadrilateral has a perimeter of 12 and all of the side lengths are odd integer then the probability that the quadrilateral is a rhombus is 1/4.

If the midpoints of a rhombus with 12-inch sides are connected, a quadrilateral is created. A square with a 12-inch diagonal would be the quadrilateral that is constructed.

A perimeter is a closed path that encloses, surrounds, or delimits a one-dimensional length, a two-dimensional shape, or both. The circumference of a circle or an ellipse is its perimeter. There are numerous practical uses for calculating the perimeter.

All four side lengths must be added up in order to determine the perimeter, or the distance around the rectangle. Since there are two of each side length, it is simple to multiply the total of the length and the breadth by two in order to accomplish this task efficiently.

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Answer:

Yes.

Step-by-step explanation:

Is it possible to find the area of a parallelogram by just multiplying the lengths of two adjacent sides?

It is to find the area of a parallelogram by just multiplying the lengths of two adjacent sides. Let us now find a relation, if any, between the areas of two parallelograms on the same base and between the same parallels.

Answer: x=60/13

Step-by-step explanation:

The smaller triangle has the same proportions as the bigger triangle.

Hence, 13/12=5/x

13/12=5/x

13 * x/12=5

13x=5*12

13x=60

x=60/13

The numbers in order from the least to the greatest is  5, -45/7, -2.2, 13/7, 2.5, √9, 3.5.

When ordering a number from the least to the greatest, the negative number is smaller than the positive numbers. The farther a negative number is from 0 on the number line, the smaller the number is. The farther a positive number i from 0 on the number line, the larger the number is.

To order a number from least to greatest, convert al the numbers to decimals. A decimal is a number that is made up of integers and non-integers. The integers are separated from the non integers by a decimal point.

√9 = 3

-30/6 = - 5

13 / 7 = 1.857

- 4 5/9 = -4.56

The numbers ordered from least to greatest is:- 5, -45/7, -2.2, 13/7, 2.5, √9, 3.5

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The product in scientific notation of (4.12 × 10^−9)(8.3 × 10^15) is  3.4196 * 10^7

The product expression is given as

(4.12 × 10^−9)(8.3 × 10^15)

Rewrite properly as

(4.12 × 10^−9)(8.3 × 10^15) =  (4.12 × 10^−9) * (8.3 × 10^15)

Evaluate the product of 4.12 and 8.3 in the above expression

So, we have

(4.12 × 10^−9)(8.3 × 10^15) =  34.196 * 10^−9 × 10^15

Evaluate the product of 10^−9 and 10^15 in the above expression

So, we have

(4.12 × 10^−9)(8.3 × 10^15) =  34.196 * 10^6

Rewrite the expression as

(4.12 × 10^−9)(8.3 × 10^15) =  3.4196 * 10^7

Hence, the product in scientific notation of (4.12 × 10^−9)(8.3 × 10^15) is  3.4196 * 10^7

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Answer:

Its B. 3.4196 x 10^7

Step-by-step explanation:

This is correct answer :))

Answer:

x+3=3+x

x+3=x+3

Step-by-step explanation:

The number of packs of hot dogs bought is 2 packs

The number of packs of hamburgers bought is 4 packs

Let x represent the number of hot dogs bought and y represent the number of hamburgers bought

x + y= 6.........equation 1

2.65x + 6.29y= 30.46.........equation 2

From equation 1

x + y= 6

x= 6 - y

Substitute 6 - y for x in equation 2

2.65(6-y) + 6.29y = 30.46

15.9 - 2.65y  + 6.29y = 30.46

3.64y = 30.46 - 15.9

3.64y= 14.56

y= 14.56/3.64

y= 4

Substitute 4 for y in equation 1

x + y= 6

x + 4= 6

x= 6 - 4

x= 2

Hence 2 packs of hot dogs and 4 packs of hamburgers were bought

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Answer:

yes

Step-by-step explanation:

there are two sets of parrelell line
i might have spelled it wrong

The parallelogram is ABCD with the sides AD parallel to BC

A parallelogram is a simple quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure

The four types are parallelograms, squares, rectangles, and rhombuses

Properties of Parallelogram

Opposite sides are parallel

Opposite sides are congruent

Opposite angles are congruent.

Same-Side interior angles (consecutive angles) are supplementary

Each diagonal of a parallelogram separates it into two congruent triangles

The diagonals of a parallelogram bisect each other

Given data ,

Let the figure be represented as ABCD

Now , the sides AD and BC are parallel to each other

And , from the figure , we can say that the sides AB is parallel to CD

Therefore , the figure ABCD is a parallelogram

And , opposite sides of a parallelogram are parallel

Hence , the figure ABCD is a parallelogram

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The ratio of quarts of punch to cans of frozen orange is 3/2 with maintaining the ratio to make 4 quarts of a punch we need 2 2/3 cans of frozen orange.

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

Given that,

2 cans of frozen oranges are used to make 3 quarts of punch.

So,

quarts of punch/cans of frozen oranges = 3/2

Now with the same ratio if we use 4 quarts of punch

Then,

3/2 = 4/ cans of frozen orange

Cans of frozen orange = 4(2/3)

⇒ 8/3 = 2 2/3.

Hence " To make 4 quarts of a punch we need 2 2/3 cans of frozen orange".

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The equation that can be written to represent this situation is 15 + 25h = 115.

Let the number of hours be represented by h.

The equation will be:

(3 × 5) + (25 × h) = 115

15+ 25h = 115

It should be noted that 15 represents the cost of jackets

Therefore, the equation that can be written to represent this situation is 15 + 25h = 115.

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The equation that can be written to be present this situation is 115 = 25x + 15

Susie and friends rent 3 life jackets and a boat.

The  life jacket rents for $5.00 each.

The boat rents for $25.00 per hour.

The total cost is $115.

The equation that can be written to be present this situation is as follows:

The equations should be linear.

Therefore,

y = mx + b

where

Therefore, the equations is as follows;

y = 25x + 15

115 = 25x + 15

where

x = number of hours you rent the boat.

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The missing terms of the given arithmetic sequence AP are 14, 21, 28, 35.

An arithmetic progression (AP) is a sequence with the same distinctions between each successive term.

Now, in response to the question;

The arithmetic sequence.14,..., 28, ............

There are total 4 terms in the series.

Let the initial term is  'a₁' is given as 14.

Let the second term is 'a₂'.

Let the third term be 'a₃' which is given as 28.

Ans, the let the fourth term is represented as 'a₄'.

As, we know that in the AP, the difference of the two consecutive terms is equal and called as common difference.

Thus,

d = a₂ - a₁      ........(equation 1)

d = a₃ - a₂     .......(equation 2)

Thus, equating the two equation;

a₂ - a₁ = a₃ - a₂

Substituting the values;

a₂ - 14 = 28 - a₂

Simplifying the equation;

2a₂ = 28 + 14

2a₂ = 42

a₂ = 21.

Put the obtained value in equation 1 and find d.

d = a₂ - a₁

d = 21 - 14

d = 7

Now, estimate a₄.

a₄ = a₃ + d

a₄ = 28 + 7

a₄ = 35

Therefore, the complete arithmetic sequence is 14, 21, 28, 35.

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The value of the polynomial at the point [tex]x=a[/tex], just replace [tex]x[/tex] with [tex]a[/tex] in the polynomial equation.

Verify the following equation:

[tex]=4x^{2} -7x+5[/tex]

The given solution:

[tex]x=-3[/tex]

[tex]4x^{2} -7x+5[/tex]

Find the equation:

[tex]4x^{2} -7x+5[/tex]

[tex]4(-3x)^{2} -7(-3)+5[/tex]

[tex]=4(9)+21+5[/tex]

[tex]=36+26[/tex]

[tex]=62[/tex]

Therefore,The option E [tex]62[/tex] is the correct answer

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