A survey was conducted on a random sample of 100
middle school students regarding their favorite color
out of blue, red, or yellow. 33 students chose blue, 34
students chose red, and 33 students chose yellow.
Greg concluded that the students at the middle
school have a preference of the color red. Is his
inference correct? Why or why not?

Leonardo purchases goods at the store of 30.894 and paid $30. 89. Leonardo did not pay enough.

Percentage of a number is the part of the number expressed in the in every hundred. Percentage of a number is expressed with the symbol '%'.

Leonardo makes the following purchases at the

Store: 1 backpack for $16.89, 5 spiral notebooks for $1.19, each 1 pack of mechanical pencils for $3.68, 2 packs of lead refills for $1. 88 each

The total amount of these items is,

[tex]P=1\times16.89+5\times1.19+1\times3.68+2\times1.88\\P=16.89+5.95+3.68+3.76\\P=30.28[/tex]

The coupons are applied after tax, and the sales tax is 5% of the purchase. Thus the amount will be,

[tex]P=30.28+30.28\times\dfrac{5}{100}\\P=31.794[/tex]

Leonardo has 2 coupons, each for 45 cents off on the purchase of a pack of lead refills. Thus, the sum become,

[tex]P=31.794-2\times0.45\\P=30.894[/tex]

Now, Leonardo paid $30. 89 therefore, he did not pay enough.

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Answer:

30 cm

Step-by-step explanation:

30+60=90

30×2=60 so 30cm is the answer.

Step-by-step explanation:

If one price is 2 times the other one, that means it's equal to 2 of those parts. Let's decide our total wire by three to account for the larger part.

[tex]90 \div 3 = 30[/tex]

Now we know the shorter piece is 30 cm. To find the longer piece, multiply the shorter piece by 2.

[tex]30 \times 2 = 60[/tex]

Recap:

Shorter Piece: 30 cm

Longer Piece: 60 cm

That's all there is to it! hope this helps.

Answer:

I believe it is 12 I can't remember fully but I know I've done this before

And if you can right now please give brainliest!

Answer:

6

Step-by-step explanation:

Once again I'm not going to explain in-depth as it is the same method as the other questions I explained!

Step 1:

16/8=2

Step 2:

12/2=6

Therefore the missing AC side should be 6 because the triangles use a factor of 2!

Answer:

12 times

Step-by-step explanation:

There are 3 blue marbles and 9 marbles total. The probability of selecting a blue marble is 3/9, reduced it is 1/3.

Multiply the probability by 36

[tex]\frac{1}{3}[/tex] × [tex]\frac{36}{1}[/tex]

[tex]\frac{36}{3}[/tex]

12

Answer:

D

Step-by-step explanation:

a triangles angles have to add up to 180 degrees

p.s.I hope this helps

Answer:

each song would be 67 cents (0.67)

Step-by-step explanation:

9.38/14=0.67

Answer:

x = 6

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are in proportion, that is

[tex]\frac{MO}{PR}[/tex] = [tex]\frac{MN}{PQ}[/tex] ( substitute values )

[tex]\frac{4+x}{5}[/tex] = [tex]\frac{x-2}{2}[/tex] ( cross- multiply )

5(x - 2) = 2(4 + x) ← distribute parenthesis on both sides

5x - 10 = 8 + 2x ( subtract 2x from both sides )

3x - 10 = 8 ( add 10 to both sides )

3x = 18 ( divide both sides by 3 )

x = 6

Answer:

629r2

Step-by-step explanation:

Hope this helped!

Answer:

13 units

Step-by-step explanation:

-25, -12

|-25| - |-12|

13 units

Hope it helps! :)

[tex]\bold{\huge{\blue{\underline{Solution}}}}[/tex]

Let's start ,

From the figure, we can assume the beam forms as AD, BC, EF , GH and so on.

Therefore,

[tex]\sf{ ABCD , AEFD, AGHD.. so \:on similar\: to \:each \:other }[/tex]

So,

[tex]\sf{ Angle\:BAD = Angle\:EBC = Angle\:GEF}[/tex]

Or,

[tex]\sf{ Angle\: ADC = Angle\:BCF = Angle\: EFH }[/tex]

Now, By using similarity theorem we can determine their sizes, braces and angles that is,

[tex]\sf{\red{ AD/BC = AB/AE = CD/CF = BC/EF}}[/tex]

[tex]\bold{\huge{\blue{\underline{Answers :- }}}}[/tex]

Answer 1 :-

For answering the above questions we use knowledge and practices regarding the questions we can do the activity by making figures of unknown sides by assuming it in the form of x, y.so that we can find the known values.

Answer 2 :-

The best way of solving the above questions is that it is already given in the question that the beam is symmetrical so, here we can use similarity theorem.

Answer 3 :-

It necessary to learn about trapezoid and it's properties because if we don't know the properties and what is trapezoid then we will not be able to answer the given question.

Some properties of trapezoid

Answer 4 :-

Well, The answer is very easy that if we don't know anything regarding the trapezoid then we will not be able to any question based on it and if we have incomplete knowledge about it then we will able to solve it but we always got incorrect answers most probably.

Answer:

An open circle on 2, with a line going to the left.

Step-by-step explanation:

7x − 5 < 9

   + 5  + 5

7x < 14

/7    /7

x < 2

This is an open circle on 2, with a line going to the left.

Hope that helps!

Answer:

See the attached table.

Step-by-step explanation:

Each row, column, and diagonal all add up to six.

[tex]\left[\begin{array}{cccc}9&-5&-4&6\\-2&4&3&1\\2&0&-1&-5\\-3&7&8&-6\end{array}\right][/tex]

Hope that helps!

Answer:

*

Step-by-step explanation:

9  -5  -4   6

-2   4   3    1

2   0  -1   5

-3    7   8  -6

Answer:

the answer is 406 L times H times W

Answer:

406 Sorry if wrong!

Step-by-step explanation:

Volume=length x width x height

Answer:

Step-by-step explanation:

We can let d represent the number of hours that Dylan volunteered. Then Tadeo volunteered for 6d hours, and their total hours were ...

  d +6d = 14

  7d = 14 . . . . . . collect terms

  d = 2 . . . . . . . divide by the coefficient of d

  6d = 6(2) = 12

Tadeo volunteered 12 hours; Dylan volunteered 2 hours.

Answer:

Step-by-step explanation:

The 2 factors of x^2 - 9x + 14 are (x - 7) and (x - 2) because -7 + -2 = -9 and -7 x -2 = 14.

The factors of the quadratic expression  x² – 9x +  14 is (x - 7)(x - 2) option (B) (x - 2) is correct.

Any function of the form [tex]\rm f(x) =ax^2+bx+c[/tex] where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic function.

It is given that:

The quadratic expression is:

= x² – 9x +  14

Using factor method:

= x² – 7x - 2x +  14

= x(x - 7) - 2(x - 7)

= (x - 7)(x - 2)

The factors of the quadratic expression  x² – 9x +  14 is (x - 7)(x - 2)

Thus, the factors of the quadratic expression  x² – 9x +  14 is (x - 7)(x - 2) option (B) (x - 2) is correct.

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#SPJ5

Answer:

Step-by-step explanation:

There are 3 angles:

There is 1 missing angle:

Subtract 180°:

Missing angle found!

Missing angle:

Answer:

$468.582

Step-by-step explanation:

Hope this helps! Please mark me as brainliest so I can level up :)

Answer:

Equation: y = 2x + 25

Step-by-step explanation:

Here x determines the number of year. For the first year,we will see ( 2 * 1 ) = $2 increase. In the second year, ( 2 * 2 ) =$4 increase and like this goes on, whereas the $25 being constant. "y" determines the total cost for each year.

Therefore the equation can be made: y = 2x + 25

Equation in slope intercept form

Answer:

88

Step-by-step explanation:

x + 49 = 137 (exterior angle of triangle is equal to sum of its opoosite two interior angles)

x = 137-49

so, x = 88

Point of Intersection

At this point is where both lines have the same x and y values

Answer:

True, it is a solution

Step-by-step explanation:

First, let’s distribute 1/3 to x and 4

When we do this, we get:

1/3x+4/3=20

Now, we can solve the equation!

Subtract 4/3 from each side of the equation to isolate the x

We now have 1/3x=18 2/3

Now we divide 1/3 on each side to isolate the x (this is the same as multiplying by 3/1 on each side)

This gets us to x=56

So it is true

Hope this helps! (Please award branliest if possible)

Answer:

Simplify them to the lowest.

What's the GCF( Greatest Common Factor). It's 8. So divide both sides by 8.

24/8 = 3

56/8 = 7

so it's

3 dogs to 7 cats

Step-by-step explanation:

Answer:

3 dogs to 7 cats

Step-by-step explanation:

Find the Greatest Common Factor of the two numbers- if you don't know what that means, it means to find the biggest number that both numbers can be divided by. Basically, it's like simplifying a fraction.

:) Hope this helps!

Answer:

B = (3, -5)

D = (0, -1)

C = (3, 5)

Step-by-step explanation:

We want to find the coordinates of B, C, and D given that AB = 5 and BC = 10.

Because AB = 5 and BC = 10, we can find the slope of the line using the slope formula:
[tex]\displaystyle \begin{aligned} m & = \frac{\Delta y}{\Delta x} \\ \\ & = \frac{(10)}{(5)} \\ \\ & = 2 \end{aligned}[/tex]

Point A(-2,-5) is on the line. Hence, the equation of the line is:
[tex]\displaystyle \begin{aligned} y-y_1 &= m(x-x_1) \\ \\& = y-(-5) = 2(x-(-2)) \\ \\ y + 5 & = 2x+4 \\ \\ y & = 2x-1 \end{aligned}[/tex]

Because AB is 5, B is simply A shifted rightwards five units. Hence:

[tex]\displaystyle B = (-2+5, -5) = (3, -5)[/tex]

At Point D, x = 0. Hence:
[tex]\displaystyle y = 2(0) -1 = -1[/tex]

Thus, D is at (0, -1).

B and C are collinear. Hence, the x value of C is 3:

[tex]\displaystyle y = 3(2) - 1 = 5[/tex]

Therefore, C is at (3, 5).

From the series, it can be deduced that the sum of the first two terms will be 18.

From the information given, it was stated that the transport charge starts with a minimum charge of R8 and thereafter it was increased by R2 for each kilometre.

The series is also given as S. = 8 + 10 + 12 + 14 +... Therefore, the sum of the first two terms will be:

= 8 + 10

= 18

Expressing T2 in terms of S, and S2 will be T2 = S + S2.

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you are wrong, the correct answer is x^2 - 16

Answer:

The common ratio is -2

Next three terms are 18, -36, and 72

Step-by-step explanation:

The common ratio is -2 since each consecutive term is being multiplied by -2

The next three terms are -9(-2) = 18, 18(-2) = -36, and -36(-2) = 72

Answer:

A -0.5

B 4.5, -2.25, 1.125

Step-by-step explanation:

A: 72× -0.5= -36

-36× -0.5= 18

18× -0.5= -9

B multiple everything by -0.5

irrational number: cannot be expressed as a simple fraction

a. [tex]\tt 2-\sqrt{3}:irrational[/tex]

b. [tex]\tt \sqrt{2}\times \sqrt{3}=\sqrt{6}:irrational[/tex]

c. [tex]\tt \sqrt{27}\times \sqrt{3}=\sqrt{81}=9:rational[/tex]

d. [tex]\tt =0\sqrt{7}=0:rational[/tex]

The systems of equations are known to be complex. We often use systems of equations in real-world scenario such as when calculating or thinking if one will make more money at one job than the other, here we look into variables such as wages, benefits and commissions, etc.

They  are used to calculate the amount of tax that is charge to people. They also help man to measure and understand the real- world situations and happenings.

The field or career that Equations are known to be widely used are the engineering profession. Chemical engineers, civil engineers, electrical engineers, etc. often uses it in construction of building, lighting a place, etc.

The Systems of equations are often applied in the real world by economists and entrepreneurs to known the time of equality of supply and demand.

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