Middle school math ! Plz help!!

Answer:

2/5

Step-by-step explanation:

Answer:

(- 3/13, 56/13)

Step-by-step explanation:

See steps below:)

Answer:

The answer is "Experimental Probability  ".

Step-by-step explanation:

The probability of experiments is uncertainty which is calculated several times as per the outcome of even an experiment. The probability distribution is probably dependent upon reasoning. This probability is a price of about one or zero. It was based on the relative frequency or what occurs during a probability test.

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B. 3

Answer:

The current that produces maximum power is 3A

Step-by-step explanation:

Given

[tex]P(c) = 20(c - 3)^2[/tex]

Required [Missing from the question]

The current that produces maximum power

First, we represent the function in standard form

[tex]P(c) = 20(c - 3)^2[/tex]

[tex]P(c) = 20(c - 3)(c - 3)[/tex]

Open bracket

[tex]P(c) = 20(c^2 -6c+ 9)[/tex]

[tex]P(c) = 20c^2 -120c+ 180[/tex]

The maximum value of c is:

[tex]Max(c) = \frac{-b}{2a}[/tex]

Where:

[tex]f(x) = ax^2 + b^2 + c[/tex]

By comparison: [tex]P(c) = 20c^2 -120c+ 180[/tex]

[tex]a = 20[/tex]

[tex]b = -120[/tex]

[tex]c = 180[/tex]

So, we have:

[tex]Max(c) = \frac{-b}{2a}[/tex]

[tex]Max(c) = \frac{-(-120)}{2 * 20}[/tex]

[tex]Max(c) = \frac{120}{40}[/tex]

[tex]Max(c) = 3[/tex]

Answer:

B. y > 14

y which is students age is greater than 14

Answer:

The one that makes a circle

Step-by-step explanation:

Answer:

150

Step-by-step explanation:

Each interior angle in a polygon is (n-2)×180 ÷n

(12-2)×180/12

[tex]10 \times 180 \div 12 \\ 10 \times 15 \\ 150| [/tex]

Answer:

c

Step-by-step explanation:

Answer:

B sqrt(17)

Step-by-step explanation:

Using pythagoras theorem

Answer:

triangular prism

Step-by-step explanation:

Answer:

Practice

Step-by-step explanation:

Just keep trying maybe read it out loud or write it?

Answer:

Go though it fast but get the key info

Step-by-step explanation:

Answer:

hope this helps you out good luck

Answer:

Step-by-step explanation:

tan 45=1/1=1

Tan Theta is one of the trigonometric ratios which is equal to opposite / Adjacent in a triangle, the value of tan45 is 1.

The 45-45-90 triangle is also an isosceles triangle, which means its two legs are equal in length.

Tan Theta is one of the trigonometric ratios which is equal to opposite / Adjacent in a triangle.

The side lengths of a 45-45-90 triangle are in the ratio 1: 1: [tex]\sqrt{2}[/tex].

The value of tan45 is given by the following formula;

[tex]\rm Tan 45 = \dfrac{Perpendicular}{Base}\\\\Tan45=\dfrac{1}{1}\\\\Tan45=1[/tex]

Hence, the value of tan45 is 1.

Learn more about trigonometry here;

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Answer:

A. AA

Step-by-step explanation:

Answer: AS is your answer!

Step-by-step explanation: AS has only one apple bar, which if you have the 5.1,2 Exam, you got this!

Answer:

84.4

Step-by-step explanation:

done

Volume of a right circular cone is  84.39 m³

The amount of space occupied by a three-dimensional figure as measured in cubic units.

Given:

height = 12.4 m. base diameter= 5.1 m, radius= 5.1/2 m

Volume of right circular cone= 1/3* π* r²*h

                                                = 1/3*3.14* 2.55*2.55*12.4

                                               = 84.39 m³

Hence, the volume of right circular cone is 84.39 m³

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Answer:

4

Step-by-step explanation:

2+2

=4

Answer:

The real answer

Step-by-step explanation:

Answer:

Sqrt 29

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

hi

The domain of f(x) = 5x - 7 is {x | x is a real number} and this can be denoted as (-∞, ∞) for all x ∈ R.

The domain is the set of all the input values given to a function.

Given is an expression f(x) = 5x - 7, we need to find the domain,

We know that,

The domain of any expression is set to all the real numbers, except where the expression is undefined.

Therefore, the domain is all real numbers.

Also,

The graph of the function will be a straight line without discontinuities.

Hence the domain of f(x) = 5x - 7 is {x | x is a real number} and this can be denoted as (-∞, ∞) for all x ∈ R.

Learn more about domain click;

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Answer:

AC ≈ 5.5

Step-by-step explanation:

Angle bisector theorem states that "angle bisector of an angle divides the opposite side into two segments which are proportional to the other two sides of the triangle."

By applying this theorem in the given ΔABC,

AD is the angle bisector of ∠CAB which divides the opposite side of the angle into two segments BD and CD.

Therefore, [tex]\frac{AB}{BD}=\frac{AC}{CD}[/tex]

[tex]\frac{5.1}{4}=\frac{AC}{4.3}[/tex]

[tex]AC=\frac{5.1\times 4.3}{4}[/tex]

AC = 5.4825

AC ≈ 5.5 units

Answer:

[tex]2\sqrt{6}[/tex]

Step-by-step explanation:

[tex]\sqrt{6} +\sqrt{6} =2\sqrt{6}[/tex]

Answer:

800 ÷ 30 = 26.66666666666667 or 26.

Step-by-step explanation:

Answer: 15=45

Step-by-step explanation:30+15=45=15

Answer:

A.15

Step-by-step explanation:

30+15=45

Answer:

B: b x 2 = c

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The answer is B bc b. is not equivalent to two and if you switch the variables either way the answer will be the same.