Multiple Choice
1. Which ratios form a proportion? (1 point)
minni
O4/9,12/25
O3/7,18/42
O 5/11,20/45
O5/8,15/25

Answers

Answer 1
Es 16 por 14 mas tu madre

Related Questions


In the figure above, OO is inscribed in △ PQR.
If PA=12, QA = 6, and RB = 9.5, what is the perimeter of △ POR?

Answers

The perimeter of triangle is 55.

What is perimeter of triangle?

The sum of the lengths of the sides is the perimeter of any polygon. In the case of a triangle,

Perimeter = Sum of the three sides

Given, QA=5, AP=12, RB= 9.5

We know tangent drawn from external point are equal.

therefore, PA=PB

PB=12

Similarly, RB=RC, RC =9.5

QC=QA, QC =6

Perimeter of triangle = PQ+PR+QR

=6+12+9.5+12+6+9.5

=55

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Solve for the variable: 2x = 14
28
12
7
16

Answers

2x=14 first we divide 2 on both side canceling 2 and we now that 14/2=7 so we now that x=7

you can do it first + each other and than × each them

Find functions f and g so that h(x) = (f. g)(x).
h(x) = (−3x − 8) ²

Answers

The function of f and g is  (−3x − 8) ² is  (f× g)(x)

What is meant by composition function ?

A function is composed in mathematics when two functions, f and g, are used to create a new function, h, such that h(x) = g(f(x)). The function of g is being applied to the function of x, in this case. Therefore, a function is essentially applied to the output of another function.

A composite function typically refers to a function that is contained within another function. The process of creating a function involves substituting one function for another. For instance, the composite function of f (x) and g is called f [g (x)]. You can read the composite function f [g (x)] as "f of g of x."

Given ,

h(x) = (−3x − 8) ²

h(x)=(f× g)(x).

(−3x − 8) ² = (f× g)(x)

Therefore  the function of f and g is  (−3x − 8) ² is  (f× g)(x)

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IXL Help Fast Please!

Answers

Answer:

x=25

Step-by-step explanation:

(3x+10)+(5x-30)=180

8x-20=180

8x=200

x=25

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& You download a digital soccer game for $2.50. You can add new players for $1.50 each to upgrade your
The total cost cis a function of the number of new players that you add. Which of the following
Statements about the domain and the graph of the function is correct?
A The domain is discrete, and thin

Answers

The true statement about the domain and the range is that the domain is discrete, and the range is continuous

How to determine the true statement about the domain and the range?

From the question, the given parameters are:

Amount to download = $2.50

Amount to add each player = $1.50

Represent the number of players with x

So, we have the following representations

Total amount = Amount to download + Amount to add each player * Number of players

So, we have

y = 2.50 + 1.50 * x

Evaluate

y = 2.50 + 1.5x

The above function is a linear function and the input is the number of players

This means that the domain is discrete

However, the amount can take decimal points

This means that the range is continuous

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Simplify and show all work:

√ + = − + 6

Answers

The value of x for the given equation is 3,11.

What is equation?

In arithmetic, an equation may be a formula that expresses the equality of 2 expressions, by connecting them with the sign =.

Main Body:

According to given equation:

√2x+3 = -x+6

2x+3 = (-x+6)²

2x + 3 = x²+ 36 -12x

x²-14x +33 = 0

Now splitting the middle term t find the factor.

x² -11x -3x +33 = 0

x(x-11) -3(x -11) = 0

(x-3)(x-11) = 0

so either x- 3 = 0   or x -11 = 0

hence value for x = 3,11.

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There are two number cubes (dice) with faces labeled 1, 2, 3, 4, 5 and 6 equally likely. Roll two dice (one at a time) and calculate the sum of the two faces.

a. Display the sample space
b. P(sum of 8) =
c. P(odd sum or sum greater than 9)
d. P(odd sum and sum greater than 9)

Let A = rolling a 3 or a 4 first
Let B = sum of at most 7
e. P(A)=
f. P(B)=
g. P(A and B) =
h. Are A and B mutually exclusive? Why or why not?
i. Are A and B independent? Why or why not?

Answers

b. P(sum of 8) = 5/36

c. P(odd sum or sum greater than 9) = 2/3

d. P(odd sum and sum greater than 9) =  1/12

e. P(A) = 1/3

f. P(B) =

g. P(A and B) = 1/18

h. A and B are not mutually exclusive because both events can occur at the same time.

i. A and B are not independent because the occurrence of A and lead to the occurrence of B.

What are the probabilities?

P(sum of 8) = number of sample spaces that sum up to 8 / total number of sample spaces

P(sum of 8) = 5/36

P(odd sum or sum greater than 9) = (sample spaces that have an odd sum / total number of sample spaces) + (sample spaces that have a sum greater than 9 / total number of sample spaces)

P(odd sum or sum greater than 9) =(18 / 36) + (6/36) = 24/36 = 2/3

d. P(odd sum and sum greater than 9) = (sample spaces that have an odd sum / total number of sample spaces)  x (sample spaces that have a sum greater than 9 / total number of sample spaces)

P(odd sum and sum greater than 9) = 18/36 x 6/36 = 1/12

P(A) = (sample spaces that have a 3 first / total number of sample spaces) +  (sample spaces that have a 3 first / total number of sample spaces)

P(A) = 6/36 + 6/36 = 1/3

P(B) = (sample spaces that adds up to 7 / total number of sample spaces)

= 6/36 = 1/6

P(A and B) = 1/3 x 1/6 = 1/18

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Determine the end behavior of the following polynomial function:
f(x)=−4(x−2)^12(6−x)^11
The leading term of the polynomial is ?
The degree of f(x) is ?
The leading coefficient is?

Answers

For the polynomial function,

The leading terms of the polynomial is 4

The degree of f(x) is 23

And the leading coefficient is 4x²³

Polynomial function:

Polynomial function means a function that involves only non-negative integer powers or only positive integer exponents of a variable in an equation like the quadratic equation, cubic equation, etc.

Given,

Here we have the polynomial function

f(x) = -4(x-2)¹²(6-x)¹¹

Now, we need to find the leading term, degree and the leading coefficient of the polynomial function.

The degree of a polynomial is the highest of the degrees of the polynomial's individual terms. In our case, the degree is 23.

The leading term is the term with the highest degree. In our case, the leading term is 4x²³

The leading coefficient is the coefficient of the leading term. In our case, the leading coefficient is 4.

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Kendra earns $11.60 per hour working at the movie theater

Answers

The expression for the amount when Kendra earns $11.60 per hour working at the movie theater is 11.60h.

What is an expression?

An expression simply refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both.

Based on the information illustrated, let the number of hours be h.

Since Kendra earns $11.60 per hour working at the movie theater. The expression will be:

= Amount earned per hour × Number of hours

= 11.60 × h

= 11.60h

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Kendra earns $11.60 per hour working at the movie theater. How much will she earn for h hours?

A recipe calls for 3 3/4 cups of flour. How much flour is needed if the recipe is tripled

Answers

The amount of flour that is needed if the recipe is tripled is 11 ¹ / ₄ cups of flour

How to find the flour needed for the recipe?

To find the flour needed for the recipe, first convert the mixed  fraction to an improper fraction for easier calculation.

= 3 ³ / ₄

= (4 x 3 + 3) / 4

= 15 / 4 cups of flour

If the recipe was tripled, then the number of cups of flour would also need to be tripled.

The amount of flour needed becomes:
= 15 / 4 x 3

= 45 / 4

= 11 .25

= 11 ²⁵ / ₁₀₀

= 11 ¹ / ₄ cups of flour

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Quadrilateral A'B'C'D' is the image of
quadrilateral ABCD under a dilation with a scale
factor of 3. What is the length of segment BC?

Answers

By using the concept of dilation factor, length of BC obtained is 3 units

What is dilation factor?

Dilation is a transformation which changes the size of a figure by a certain factor.

That factor is called the scale factor

In the figure, A'B'C'D' is the image of ABCD under dilation with a scale factor of 3

A'B'C'D' is the dilated figure

Length of B'C' = 9 units

Length of BC = [tex]9 \div 3[/tex] = 3 units

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Complete Question

The figure has been attached here

PLEASE HELP

A ferris wheel is 45 meters in diameter and boarded from a platform that is 3 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 6 minutes. The function h = f(t) gives your height in meters above the ground t minutes after the wheel begins to turn.

What is the Amplitude? _______ meters
What is the Midline? y = ________ meters
What is the Period? ______ meters
How High are you off of the ground after 3 minutes? _____ meters

Answers

The Amplitude of the Wheel is 22.5

The Midline of the wheel is 25.5;

The period of the wheel is 6;

what is amplitude?

A sound is a type of energy that is created when objects vibrate. For it to spread, a medium is needed. As a result, sound cannot travel in a vacuum because there is nothing for the sound waves to travel through. The object's back-and-forth movement creates the sound. Sound vibration is the name for this. Additionally called oscillatory motion. Oscillation describes the regular rhythmic back-and-forth movement.

We know that:

Amplitude = [tex]=\frac{\max -\min }{2}[/tex]

So, substituting the minimum and maximum values as:

Maximum = 48;

minimum = 3;

So, Amplitude = [tex]=\frac{48-3}{2}=22.5[/tex]

So, Amplitude = 22.5;

Now,

we know that midline is half of the sum of minimum and maximum;

So,

Midline = [tex]=\frac{\max +\min }{2}[/tex]

So,

Maximum = 48;

minimum = 3;

Midline = [tex]=\frac{48+3}{2}=25.5[/tex]

So, Midline = 25.5;

and Period is 6 minutes;

So, we can frame the function by the negative cosine function;

[tex]n=f(t)=-a \cos (b t)+c[/tex]

[tex]\begin{aligned}&b=\frac{2 \pi}{\text { period }}=\frac{2 \pi}{6}=\frac{\pi}{3} \\&\therefore \quad h=-22.5 \cos \left(\frac{\pi}{3} t\right)+25.5\end{aligned}[/tex]

Height after time t = 3 will be:

[tex]\begin{aligned}&h=-22.5 \cos \left(\frac{\kappa}{3} \times 3 .\right)+25.5 \\&h=-22.5(-1)+25.5 \\&h=48\end{aligned}[/tex]

So, The height is 48;

Hence, After 3 minutes It is 48 meters high from the ground; is 48

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An electric toothbrush costs $72, including a 20% price markup. What was the cost for the store to purchase the electric toothbrush?

$14.40
$52.00
$60.00
$64.80

Answers

the answer is $14.40

Answer:  c.60   is correct

Step-by-step explanation:

What is the tan ratio? *
1/cos
A) a^2 + b^2= c^2
B)Oc^2 = a^2 + b^2
C)O1/tan
D)O1/sin
E)opp/hyp
F)O adj/hyp
G)cos/sin
H)opp/adj
I)Osin/cos

Answers

The ratio of tan is equal to opp/adj or sin/cos so Option H and Option I are correct.

we know that,

Tan = sin/cos

sin = opp/hyp

cos = adj/hyp

Tan = opp/hyp / adj/hyp

= opp*hyp / adj*hyp

= opp/adj.

Therefore The ratio of tan is equal to opp/adj or sin/cos so Option H and Option I are correct.

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A pizza parlor offers 8 different specialty pizzas. If the Almeida family wants to order 2 specialty pizzas from the menu, which method could be used to calculate the number of possibilities?

8 factorial divided by 2 factorial
8 factorial divided by 6 factorial
8 factorial divided by the quantity 6 factorial times 2 factorial end quantity
12!

Answers

Answer:

  (c)  8!/(6!·2!)

Step-by-step explanation:

You want to know how to compute the number of possible ways 2 different pizzas can be chosen from a menu of 8.

8 Choose 2

The formula for computing the number of combinations of n things taken k at a time is ...

  nCk = n!/(k!(n -k)!)

For 8 specialty pizzas chosen 2 at a time, this is ...

  8C2 = 8!/(2!·6!)

The appropriate answer choice is ...

  possibilities = 8!/(6!·2!)

__

Additional comment

That is (8·7)/(2·1) = 28 possibilities, assuming choice of different pizzas.

<95141404393>

I need help, I’ve been stuck on it for a long time

Answers

Answer:

-1/2

Step-by-step explanation:

[tex]\frac{10}{6}[/tex] + [tex]\frac{-7}{6}[/tex] = [tex]\frac{-3}{6}[/tex] = [tex]\frac{-1}{2}[/tex]

Find the slope
A.1
B.1/2
C.2
D.3/5

Answers

Answer:

1/2

Step-by-step explanation:

m = (Y2 - Y1) / (X2 - X1)                  Slope formula

m = (1 - 0) / (2 - 0)                           Plug in any two points, I chose (2,1) & (0,0)

m = 1 / 2

P.S. You could also count rise/run

Basically count the amount of units going up or down then counts the units going left or right that get you to the next point of the line

Hi can someone please explain and answer? Thank you! I’ll give brainly

Answers

Equation: [tex]\boxed{\pi}(8^2)[/tex]

Area: [tex]64\pi \approx 201.06[/tex]

PLEASE HELP!!
Find x if it is the measure of an acute angle in a right triangle and sin x = 0.5015.​

Answers

Answer:

  30.1°

Step-by-step explanation:

You want the acute angle whose sine is 0.5015.

Inverse sine

When you know the sine of an angle and want to find the angle, you use the inverse sine, or arcsine, function.

  sin(x) = 0.5015

  x = arcsin(0.5015) ≈ 30.1°

The value of x is about 30.1 degrees.

__

Additional comment

There are an infinite number of angles that have that sine value. Only one of them is a positive angle less than 90°. Be sure your calculator is in degrees mode, if you don't want units of radians or grads. (Spreadsheet functions will give an answer in radians.)

<95141404393>

URGENT!! ILL GIVE
BRAINLIEST!!!! AND 100 POINTS!!!!!

Answers

answer: C. 11x+4x=180; x=12

11x+4x=180
15x=180
x=12

Find the sum of the given integers. 7 + (-8) + 2 + (-1) =

Answers

Answer:

0

Step-by-step explanation:

7 + (-8) + 2 + (-1)

is the same as:

7 - 8 + 2 - 1

Simplify these:

-1 + 1

Solve:

0

You can convert gallons to liters by using a factor of 3.79. That is, 1 gallon is about 3.79 liters. About how many liters are in 37 gallons? is your answers an underestimate or overestimate explain

Answers

The amount of liter in 37 gallons is 140.23 liter.

What is gallons and liter?

A gallon and liter (or US spelling liter) are units of measuring volume. There are two official symbols for liter: the Latin letter L in lower and upper case (l and L).

Given,

that 1 gallon is given as 3.79 liter

And to find the amount of liter in 37 gallon

After multiplication,

the amount of liter in gallon,

= 3.79(37)

=140.23

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What is 4(2u+9) ≥ 5u+21

Answers

Answer:

inequality form: u≥−5

Interval Notation: [−5,∞)

                               

Convert 45 kilometers to miles. (1 kilometer = 0.62 miles)

27.9 miles
72.58 miles
13.2 miles
44.7 miles

Answers

Answer:

this is very easy, just do:

45(0.62/1)

and you get 27.9 miles

tada!

45 kilometers is equivalent to 27.9 miles.

Given that we need to convert 45 kilometers to miles.

We have given that,

1 kilometer = 0.62 miles)

To convert 45 kilometers to miles, we can use the conversion factor of 1 kilometer = 0.62 miles.

We multiply the given distance in kilometers by this conversion factor to obtain the equivalent distance in miles.

Step 1: Multiply 45 kilometers by 0.62 miles/kilometer:

45 km x 0.62 miles/kilometer = 27.9 miles

Therefore, 45 kilometers is equivalent to 27.9 miles.

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Does the pentagon have the following type of symmetry? Answer yes or no in each box.

Answers

The pentagon has the following type of symmetry:

Reflection symmetry ---Yes.Point symmetry --- Yes

What is Reflection symmetry?

This refers to a type of symmetry where one-half part of an object shows the other half of the object. It is also be called mirror symmetry.

Point symmetry refers to the shape of a figure or graph after begin turned about 180° and it still looks the same as its initial shape. eg Star, heart -shape, etc.

Note that When something is identical on all sides, it is said to be symmetrical. If a center dividing line (also known as a mirror line) can be drawn on a shape to demonstrate that both of its sides are identical, then the shape is said to be symmetrical.

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please notice that on the first one there is ( squares dont worry about those please just take them out )

Answers

By using exponent properties we will see that:

1) The expression is equal to 16.

2) The expression is equal to 4^6, so the correct option is B.

What is the value of the expression?

Here we want to solve the expression:

(2^0*4^(-2)*2^3*4^3)/2

Remember the exponent property:

a^x*a^y = a^{x + y}

let's rewrite the numerator:

2^0*4^(-2)*2^3*4^3

= (2^0*2^3)*(4^(-2)*4^3)

= 2^(0 + 3)*(4^(-2 + 3))

= 2^3*4 = 2^3*2*2 = 2^(3 + 1 + 1) = 2^5

Then we can rewrite the expression as:

2^5/2 = 2^4 = 16

b)

(1/4^-3)^2

The negative exponent means that we need to take the inverse:

(1/4^-3)^2 = (4^3)^2 = (4^3)*(4^3) = 4^(3 + 3) = 4^6

So the correct option is B.

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Salaries for teachers in a particular elementary school district are normally distributed with a mean of $45,000 and a standard deviation of $6,200.
Find the probability that the teachers earn earn a total of over $400,000.

Answers

The probability that a randomly selected teacher earns more than $400,000 a year is 57.26.

Given that, normally distributed with a mean of $45,000 and a standard deviation of $6,200.

What is normal distribution?

Normal distribution, also known as the Gaussian distribution, is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Let X be the annual salary for all U.S. teachers with a mean salary45,000 and standard deviation of 6,200.

Hence, X∼N(45000,6200²)

The standardized value is obtained by:

Z= (X-μ)/σ

Where μ and σ are the mean and standard deviation of X, respectively.

The probability that a randomly selected teacher earns between 400,000 a year can be obtained by the following expression

P(X<400,000)= (400,000-45,000)/6200

= 355000/6200

= 57.26

Therefore, the probability that a randomly selected teacher earns more than $400,000 a year is 57.26.

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help geometry help help

Answers

Porportion m=8 fix the triangle to help

May I have help on This question I’ll give you brainliest no links or I will report you

Answers

Answer: $89.91

Step-by-step explanation:

$99.90-10% of it would be $99.90-$9.99= $89.91.

A city charges $4.80 per 1,000 gallons of water used each month. Circle every water bill usage summary that could belong to a resident of that city

Answers

The bill usage summary that could belong to a resident of that city are:

$14.40 per 3000 gallons

$19.20 by 4,500 gallons

$28.80 per 6000 gallons

What are the bill usage summaries that could belong to a resident of that city?

The bill usage summary that could belong to a resident of that city have to be equivalent to $4.80 per 1000 gallons.

A -In order to determine if $2.20 per 500 gallons is equivalent, convert the quantity to 1000 gallons. To do this, multiply by 2.

t ($2.20 per 500 gallons) x 2 = $4.40 per 1000 gallons

B - In order to determine if $12.60 per 2,500 gallons is equivalent, divide 12.60 by 2500 and then multiply by 1000

(12.60 per 2500 gallons) x (1000 / 2500) = $5.04

C-  In order to determine if $14.40 per 3000 gallons is equivalent, divide $14.40 by 3

($14.40 per 3000 gallons ) / 3 =  $4.80 per 1,000 gallons

D-  In order to determine if $16 per 4000 gallons is equivalent, divide by 4.

($16 per 4000 gallons) / 4 = $4 per 1000 gallons

E- In order to determine if $19.20 by 4,500 is equivalent, multiply $19.20 by 1000 / 4,500.

($19.20 by 4,500) x (1000 / 4500) = $4.27 per 1000 gallons

F - In order to determine if $26.40 per 5,500 gallons is equivalent, multiply $26.40 by 1000 / 5500.

( $26.40 per 5,500) x 1000 / 5500 = $4.8 per 1000 gallons

G- In order to determine if $28.80 per 6000 gallons, divide by 6.

($28.80 per 6000) / 6 = $4.8 per 1000 gallons

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