80 points! Answer quick and ill give brainleist!

It is given that it costs $80 per month per child

Now first let us find how much it cost for 1 child for 12 months

So it costs $960 dollars for one child .

Now cost for two child will be:-

So Dominic need $1920 to budget for a year.

Answer:

3x-10=x+4

Step-by-step explanation:

Answer:

18 drinks

Step-by-step explanation:

(4×25) +2.5x=145

100+ 2.5x

2.5x = 45

/2.5

x=18

Answer:

I think its 3 hours also please change ur pfp it's cringe

Answer:

its 2 hours

Step-by-step explanation:

first, you say, well it's 7 days in a week and it says they practice 25 minutes  every night. So there for, you multiply, 25 times 7. and that gets you 175, now, it says how many hours does a band member practice weekly. and 60 minutes is in an hour so you have to divide, 60 divided by 175. which gives you 2 with the remainder of 55. But see don't forget it said about which means estimate or round up. so 2 with a remainder of 55, (if it's seven or up `round it up). meaning to the next number. Hopefully, this helped.

Answer:

  (a)  ΔARS ≅ ΔAQT

Step-by-step explanation:

The theorem being used to show congruence is ASA. In one of the triangles, the angles are 1 and R, and the side between them is AR. The triangle containing those angles and that side is ΔARS.

In the other triangle, the angles are 3 and Q, and the side between them is AQ. The triangles containing those angles and that side is ΔAQT.

The desired congruence statement in Step 3 is ...

  ΔARS ≅ ΔAQT

Answer:

c) Percentages

Step-by-step explanation:

Percentages can be used to compare changes from one period to another.

In calculating a percentage change, either a percentage increase or percentage decrease, we must have both the new and old measurement of the specific quantity.

For example, let's find percentage increase of the number of students that joined a book club using the parameters below;

Original number of students = 32

New number of students = 36

We will calculate the increase using;

\( Increase = original \; number - new \; number \)

Substituting the values, we have;

Increase = 36 - 32 = 4

\( Percentage \; increase = \frac{increase}{original \; number} * 100\)

\( Percentage \; increase = \frac{4}{32} * 100\)

\( Percentage \; increase = 0.125 * 100\)

Percentage increase = 12.5%

Therefore, the number of students in the school club increased by 12.5%.

A system of equations to model this scenario is given as follows -

x + y = 320

7x + 10y = 2900

        {m} - slope                 {c} - intercept along the y - axis.

Given is that on one day at a local minigolf course, there were 320 customers who paid a total of $2,900. The cost for a child is $7 per game and the cost for an adult is $10 per game.

Let {x} represents the number of children and {y} represents the number of adults who played that day. We can write the given system of equations as -

x + y = 320

7x + 10y = 2900

Therefore, a system of equations to model this scenario is

x + y = 320

7x + 10y = 2900

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The sine equation for the object's height is given as follows:

d = -5sin(0.24t).

The standard definition of the sine function is given as follows:

y = Asin(Bx) + C.

The parameters are given as follows:

The amplitude for this problem is of 5 inches, hence:

A = 5.

The period is of 1.5 seconds, hence the coefficient B is given as follows:

2π/B = 1.5

B = 1.5/2π

B = 0.24.

The function starts moving down, hence it is negative, so:

d = -5sin(0.24t).

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Answer:

x = 2

Step-by-step explanation:

\(y = {x}^{2} - 4x + 7 \\ y = (x - 2) {}^{2} - 4 + 7 \\ y = {(x - 2)}^{2} + 3\)

Therefore, axis of symmetry is x = 2

The solution is: x=2, is the axis of symmetry for the function f(x)=7−4x+x2.

Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.

Here, we have,

f(x)=7−4x+x^2

Rewriting as

f(x)  = x^2 -4x+7

a =1  b -4  c=7

The axis of symmetry is:

h = -b/2a

 = -(-4)/ 2(1)

 = 4/2(1)

 = 4/2  

 =a

The axis of symmetry is x=2.

Hence, The solution is: x=2, is the axis of symmetry for the function f(x)=7−4x+x2.

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The two figures show equivalent graphs because:

A. The graphs have several edges that match the number of vertices.

B. The graphs have the same number of edges.

C. The vertices are connected in the same way.

D. The graphs have the same number of vertices.

The third equivalent graph is at option D.

The graphs that have the same number of vertices connected in the same way are called equivalent graphs. If they are connected in the same way then their count of edges will be the same for both graphs. They are also said to be isomorphic graphs.

The given graphs have
Graph1: vertices BCJK

Graph2: vertices BCJK

So, there is the same number of vertices for both graphs.

The connection between the vertices:

Graph1: J - B - C - K - B

Graph2: J - B - C - K - B

So, they are connected in the same way.

The edges formed by these vertices:

Graph1: JB; BC; CK; KB

Graph2: JB; BC; CK; KB

So, there is the same number of edges for both graphs.

Here the number of edges = the number of vertices i.e., (4 = 4)

From all these comparisons, the given graphs are equivalent.

The third equivalent graph made from these graphs is at option D in the diagram attached below.

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Disclaimer: The given question is incomplete. There is no image attached in the given question. Here the image is attached.

Answer:

\(v=\pm 2i\)

Step-by-step explanation:

\(6v^2+24=0\\\\6v^2=-24\\\\v^2=-4\\\\v=\pm 2i\)

Answer:

Can you transalate

Step-by-step explanation:

Another point on the line is (-9, 7). Ultimately, the choice of which point to use depends on the context or specific requirements of the problem you are solving.

To determine which point to use from the equation y - 7 = 3(x + 9), we need more information.

The equation provided represents a linear equation in the form y - y1 = m(x - x1), where (x1, y1) is a point on the line and m is the slope.

Without additional context or specific instructions, we can choose any point that satisfies the equation to use as a reference.

For example, if we let x = 0, we can solve the equation for y:

y - 7 = 3(0 + 9)

y - 7 = 3(9)

y - 7 = 27

y = 27 + 7

y = 34

So, one point on the line is (0, 34).

Alternatively, if we let x = -9, we can solve the equation for y:

y - 7 = 3(-9 + 9)

y - 7 = 3(0)

y - 7 = 0

y = 7

So, another point on the line is (-9, 7).

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Option A. The only graph that could represent the function with the zeros of -2 and 4 is the graph is : A parabola declines from (negative 3 point 1, 10) through (negative 3, 8), (negative 2, 0), (negative 1, negative 4), (1, negative) and rises through (2, negative 8), (3, negative 4), (4, 0), (5, negative 6), and (5 point 5, 10).

The zeros of a quadratic function are the x-values where the function equals zero (where it crosses the x-axis). In this case, you mentioned that the zeros of the function are -2 and 4.

Looking at the provided options:

A. This graph crosses the x-axis at (-2, 0) and (4, 0), which are indeed the zeros of the function. Therefore, this could be a possible representation of the function.

B. This graph crosses the x-axis at (-4, 0) and (2, 0). These are not the zeros given for the function (-2 and 4), so this graph is not a possible representation of the function.

C. This graph crosses the x-axis at (-4, 0), but it never crosses at x=4. Instead, it crosses at x=2. Therefore, this is not a possible representation of the function.

D. This graph crosses the x-axis at (2, 0), but does not cross the x-axis at x=-2. Therefore, this is not a possible representation of the function.

So, the only graph that could represent the function with the zeros of -2 and 4 is the graph provided in Option A.

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The sample should be taken to provide a 95% confidence interval is 200.

A confidence interval is made up of the mean of your estimate plus and minus the estimate's range. This is the range of values you expect your estimate to fall within if you repeat the test, within a given level of confidence.

Confidence is another name for probability in statistics.

Given the planning value for the population proportion,

probability, p = 0.25

q  = 1 - p = 1 - 0.25

q = 0.75

margin of error = E = 0.06

value of z at 95% confidence interval is 1.96,

the formula for a sample is,

n = (z/E)²pq

n = (1.96/0.06)²*0.25*0.75

n = 200.08

n = 200 approx

Hence sample size is 200.

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Answer:

80 stickers for $4.99

Step-by-step explanation:

The other is wrong trust me

Therefore, the inputs or outputs of the trigonometric ratios for triangle DFE are:

sin(D) = 4/5

cos(F) = 3/5

tan(D) = 4/3

Three sides, three angles, and three vertices make up the enclosed, two-dimensional shape known as a triangle. In a polygon, a triangle is a facet.

To find the inputs or outputs of the trigonometric ratios for triangle DFE, we can use the definitions of the ratios:

sin(θ) = opposite/hypotenuse

cos(θ) = adjacent/hypotenuse

tan(θ) = opposite/adjacent

In triangle DFE, we have:

opposite side of angle D = DE = 20

adjacent side of angle F = EF = 15

hypotenuse DF = 25

So, we can find the trigonometric ratios for the angles in triangle DFE as follows:

sin(D) = DE/DF = 20/25 = 4/5

cos(F) = EF/DF = 15/25 = 3/5

tan(D) = DE/EF = 20/15 = 4/3

Therefore, the inputs or outputs of the trigonometric ratios for triangle DFE are:

sin(D) = 4/5

cos(F) = 3/5

tan(D) = 4/3

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Answer:

sin(F) = 4/5

cos(F) = 3/5

tan(D) = 3/4

Answer:

1 to the left and 7 up

Step-by-step explanation:

The x coordinate goes from 3 to 2, so that is your 1 to the left.

The y coordinate goes from -4 to 3, so that is your 7 up.

Solve for x.

2x + 9 = 33

2x = 24

x = 12

A. x = 7.5

B. x = 12

C. x = 21

D. x = 84

Answer:

\(2x + 9 = 33 \\ 2x = 33 - 9 \\ 2x = 24 \\ x = \frac{24}{2} \\ x = 12\)

Answer:

19/20 , 1 1/4 , 1 4/5

Step-by-step explanation:

1.8 = 1 4/5 (fraction)

1.8 converts to 18/10. This can be simplified twice, firstly by making it 9/5 since both 18 and 10 are divisible by two, but can be simplified further to 1 4/5

1.25 = 1 1/4 (fraction)

1.25 converts to 125/100. This can be simplified to 5/4 or 1 1/4

0.95 = 19/20 (fraction)

0.95 converts to 95/100. This can be simplified to 19/20

Ascending Order (smallest to largest)

smallest - 19/20

middle - 1 1/4

largest - 1 4/5

I believe this is the right answer, but haven't done fractions in a while so may want to double check to make sure

Answer:

Step-by-step explanation:

Hello!

There are two values of n in the text, I'll use the one that appears in all the questions.

The variable of interest is

X: pollutants found in waterways near large cities. (ppm)

This variable has a normal distribution with parameters μ= 9ppm and σ= 1.5ppm

1) X~N(μ;σ²)

X~N(9;2.25)

2) The distribution of the sample mean is X~N(μ;σ²/n)

σ²/n= 2.25/37= 0.06

X~N(9;0.06)

3) P(X>9.6)

To calculate this probability you have to use the standard normal distribution. Using the population parameters, you can calculate the corresponding Z value:

Z= (X-μ)/σ= (9.6-9)/1.5= 0.4

P(Z>0.4)= 1-P(Z≤0.4)= 1 - 0.65542= 0.34458

The probability of selecting a city at random and finding 9.6ppm pollutants.

4) In this item, instead of calculating the probability of one value of the variable you have to calculate the probability of the sample average taking a determined value. Because of this, you have to work using the distribution of the sample mean, instead of the distribution of the variable.

P(X[bar]>9.6)

Z= (X[bar]-μ)/(σ/√n)= (9.6-9)/√0.06= 2.45

P(Z>2.45)= 1 - P(Z≤2.45)= 1 - 0.99286= 0.00714

5) The assumption of a normal distribution is not necessary for item 4. Since the sample size is large enough (greater than 30) you can apply the central limit theorem and approximate the distribution of the sample mean to normal, regarding the distribution of the original variable.

6)

In this case, you have to work starting with the standard normal distribution and then "translate" the Z values into values of the average amount of pollutants.

The first quartile divides the bottom 25% of the distribution from the top 75%, symbolically:

P(Z≤z₁)= 0.25

z₁= -0.674

z₁= (X[bar]-μ)/(σ/√n)

z₁*(√n/σ)=X[bar]-μ

X[bar]=z₁*(√n/σ)+μ

X[bar]=(-0.674)*(√37/1.5)+9= 6.27ppm

The third quartile divides the bottom 75% of the distribution from the top 25%, symbolically:

P(Z≤z₂)= 0.75

z₂= 0.674

z₂= (X[bar]-μ)/(σ/√n)

z₂*(√n/σ)=X[bar]-μ

X[bar]=z₂*(√n/σ)+μ

X[bar]=(0.674)*(√37/1.5)+9= 11.7.3ppm

IQR= Q₃-Q₁= 11.73-6.27= 5.46ppm

I hope this helps!

Answer:

A''=(8,0)

B''=(12,-5)

C''=(16,-4)

D''=(17,3)

Step-by-step explanation:

Translations

The following points are given:

A=(2,3)

B=(6,-2)

C=(10,-1)

D=(11,6)

Two transformations will be applied:

T(x,y)->(x+12,y-8). It means: add 12 to x, subtract 8 to y

T(x,y)->(x-6,y+5). It means: subtract 6 to x, add 5 to y

Start with point A. First translation:

A'=(2+12,3-8)=(14,-5). Second translation:

A''(14-6,-5+5)=(8,0)

Now for point B. First translation:

B'=(6+12,-2-8)=(18,-10). Second translation:

B''(18-6,-10+5)=(12,-5)

Now for point C. First translation:

C'=(10+12,-1-8)=(22,-9). Second translation:

C''(22-6,-9+5)=(16,-4)

Finally for point D. First translation:

D'=(11+12,6-8)=(23,-2). Second translation:

D''(23-6,-2+5)=(17,3)

Answer:

Trapezoid: \(31.59cm^{2}\)

Square: \(96.04 miles^2\)

Circle: \(314.15926535898 miles^2\)

Rectangle: \(44.7miles^2\)

Step-by-step explanation:

I labeled one of the pictures wrong, but if you look at the numbers, you should be able to tell them apart ;)

I hope I helped, and I always appreciate brainliest!!! :)

Answer:

The answer is "Option a".

Step-by-step explanation:

Dispute C comes under factual dispute because the words Vacaville or Victorville are two different places and they are arguing about the fact that's why option a is correct.

Answer:

To perform these operations, we need to ensure that the dimensions of the matrices match. Since k is a row matrix with 1 row and 4 columns, and L is a column matrix with 4 rows and 1 column, we need to transpose one of them to match the dimensions. Let's transpose k to get a column matrix with 4 rows and 1 column:

k^T = 2

3

4

3

Now we can perform the matrix operations:

1. k + L:

2 + 7 = 9 3 + 10 = 13 4 + 5 = 9 3 + 11 = 14

9 + 1 = 10 13 + 6 = 19 5 + 9 = 14 11 + 4 = 15

10 + 11 = 21 4 + 7 = 11 7 + 10 = 17 3 + 7 = 10

= 9 13 9 14

10 19 14 15

21 11 17 10

2. K - L:

2 - 7 = -5 3 - 10 = -7 4 - 5 = -1 3 - 11 = -8

9 - 1 = 8 13 - 6 = 7 5 - 9 = -4 11 - 4 = 7

10 - 11 = -1 4 - 7 = -3 7 - 10 = -3 3 - 7 = -4

= -5 -7 -1 -8

8 7 -4 7

-1 -3 -3 -4

3. 2k + 3L:

2(2) + 3(7) = 20 2(3) + 3(10) = 36 2(4) + 3(5) = 22 2(3) + 3(11) = 37

2(9) + 3(1) = 21 2(13) + 3(6) = 44 2(5) + 3(9) = 23 2(11) + 3(4) = 29

2(10) + 3(11) = 42 2(4) + 3(7) = 29 2(7) + 3(10) = 34 2(3) + 3(7) = 23

= 20 36 22 37

21 44 23 29

42 29 34 23

4. 3L - 2K:

3(7) - 2(2) = 17 3(10) - 2(3) = 27 3(5) - 2(4) = 7 3(11) - 2(3) = 29

3(1) - 2(9) = -15 3(6) - 2(13) = -11 3(9) - 2(5) = 17 3(4) - 2(11) = -14

3(11) - 2(10) = 13 3(7) - 2(4) = 14 3(10) - 2(7) = 16 3(7) - 2(3) = 15

= 17 27 7 29

-15 -11 17 -14

13 14 16 15

Therefore , the solution of the given problem of angles comes out to be Greeks failed to demonstrate that tripling a square with only a straight edge and compass was also unachievable.

The highest and lowest walls of a skew are used to split the curved lines that make up its ends using Cartesian measurements. A collision between two poles at an intersection is a potential. Angle is another outcome of two things interacting. They resemble dihedral forms the most closely. A two-dimensional curve can be created by placing two line beams in various configurations between their ends.

Here,

The Greeks were unable to trisect a line section using only a straight edge and compass.

The Greeks proved that using only a straight edge and compass, it is impossible to trisect any angle or double a cube.

The Greeks failed to demonstrate that tripling a square with only a straight edge and compass was also unachievable.

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