Which of the following shows 12 more than a number, written as an algebraic expression?

A: 12 − n
B: 12 + n
C: n − 12
D: 12n

Answer:

they both can be 25 but there are many outcomes to get that answer

Step-by-step explanation:

can i get brainiest please?

Could be 25, could be 15, depends on what x is.

The volume of the triangular prism as shown in the attached image is 30 cm³.

To find the volume of a triangular prism, we need to multiply the area of the triangular base by the height of the prism.

The area of the triangular base can be found using the formula:

Area = (1/2) × base × height

In this case, the base is 5 cm and the height is 4 cm, so the area of the triangular base is:

Area = (1/2) × 5 cm × 4 cm = 10 cm²

The height of the prism is 3 cm.

Therefore, the volume of the triangular prism is:

Volume = Area of triangular base × height

= 10 cm² × 3 cm

= 30 cm³

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The mass of the drug in the organ at time t depends on the concentration of the drug in the blood entering the organ and the rate at which the blood is entering and leaving the organ. This can be calculated by multiplying the volume of the organ by the concentration of the drug in the blood.

At time t, since the rate at which the blood is entering and leaving the organ is 3 cm^3/sec, the amount of drug in the organ is equal to the amount of drug entering the organ plus the amount of drug that was initially in the organ. As there was no trace of the drug initially, the mass of the drug in the organ at time t is 3 cm^3/sec multiplied by the concentration of the drug in the blood (1/3 gm/cm3) multiplied by the volume of the organ (150 cm^3).

Therefore, the mass of the drug in the organ at time t is 150 gm.

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Answer:

the answer is 2600π or in other words 8168.1

Answer:

The answer is 360 pi

Step-by-step explanation:

I don't really have an explanation, I just took the test

The simplified form of the expression is \(-32\).

To simplify the expression, we can perform the calculations written below step by step:

\(\(\frac{{-2(4+6)+(-2)6}}{{-2(4-1)}}\)\)

We follow the order of operations (PEMDAS/BODMAS):

Step 1: Simplify within parentheses:

\(\(4+6 = 10\)\).

Step 2: Perform multiplications and divisions from left to right:

\(\(-2(10) = -20\) and \(-2(4-1) = -2(3) = -6\)\).

Step 3: Evaluate the remaining additions and subtractions:

\(\(-20 + (-2) \cdot 6 = -20 - 12 = -32\)\).

Therefore, the simplified form of the expression \(\(\frac{{-2(4+6)+(-2)6}}{{-2(4-1)}}\) is \(-32\).\)

When simplifying an expression, several factors need consideration. First, apply the order of operations correctly, respecting parentheses and exponents. Next, combine like terms by adding or subtracting them. Distribute and simplify within parentheses or brackets as needed. Pay attention to negative signs and ensure their proper placement.

Finally, review the simplified expression to ensure accuracy and validity within the given context.

Note: The complete question is:

\(\(\frac{{-2(4+6)+(-2)6}}{{-2(4-1)}}\)\), calculate the simplified form of this expression.

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Answer:

2

Step-by-step explanation:

1+1=2

Answer: 152

Step-by-step explanation:

Let the number = x.

Therefore, x*25% = 38

25% as a decimal is 0.25.

So, 0.25x = 38

We can divide both sides by 0.25:

x = 152

Answer/Step-by-step explanation:

For example, if we are given that:

A is to B, there are 3 ways we can express the ratio, which are:

In ratio notation form, we would write it as A to B

In Colon Form, we would write it as A:B, and

In fraction form, we have A/B.

Apply this in the problem given above.

Thus:

1. 6 teachers to 120 students:

Ratio Notation form = 6 to 120

Colon form = 6:120

Fraction form = 6/120

2. 27 avocadoes to 15 atis:

Ratio Notation form = 27 to 15

Colon form = 27:15

Fraction form = 27/15

3. 18 bananas to 12 papayas:

Ratio Notation form = 18 to 12

Colon form = 18:12

Fraction form = 18/12

4. 24 males to 30 females:

Ratio Notation form = 24 to 30

Colon form = 24:30

Fraction form = 24/30

5. 32 cups to 40 saucers:

Ratio Notation form = 32 to 40

Colon form = 32:40

Fraction form = 32/40

Answer: C) (1, -1)

Step-by-step explanation:

\(\boldsymbol{\sf{\underline{\diamond System \ of \ equations \ by \ the \ reduction \ method:} }}\)

   \(\boldsymbol{\sf{We\:have\:the\:system\:of\:equations \ --\to \ \left \{ {{x+2y=1 \ } \atop {2x-3y=5 }} \right. }}\)

Multiply the first equation by 2, and the second equation by -1, then both equations must be added.

             \(\boldsymbol{\sf{\star \ 2(x+2y=-1) }}\\ \boldsymbol{\sf{\star -1(2x-3y=5) }}\)

We add these equations to eliminate x.

             \(\boldsymbol{\sf{\star \ 7y=-7 }}\)

Then we solve 7y=-7 for y (divide by 7).

               \(\boldsymbol{\sf{\star \ \dfrac{7y}{7}=\dfrac{-7}{7} }}\\ \\ \boxed{\boldsymbol{\sf{\star \ y=-1}}}\)

We place the found value of y, in one of the original equations y to solve for x.

                  \(\boldsymbol{\sf{\star \ x+2y=-1}} \\ \\ \boldsymbol{\sf{\star \ x+2(-1)=-1}}\\ \\ \boldsymbol{\sf{\star \ 0=-x+1 }}\)

Simplify (We add x to both sides.)

                  \(\boldsymbol{\sf{\star \ 0+(x)=-x+1+(x) }}\\ \\ \boldsymbol{\sf{\star \ x=1}}\\ \\ \boldsymbol{\sf{\star -2=-1-x}}\)

Add (2) to both sides.

                   \(\boldsymbol{\sf{\star \ -2+(2)=-x-1+(2) }}\\ \\ \boldsymbol{\sf{\star \ 0=-x+1 }}\)

We divide by 1.

                      \(\boldsymbol{\sf{\star \ \dfrac{x}{1}=\dfrac{1}{1} }}\\ \\ \boxed{\boldsymbol{\sf{\star \ x=1}}}\)

                                     \(\underline{\bf{ \ \ x,y \ answer\ \ \ \ }}\\\boxed{\boldsymbol{\sf{x=1,y=-1 }}}\)

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The steps are;

The first phase entails creating a research strategy and a comprehensive protocol detailing the goals, approach, and steps of the investigation.

The second step is selecting target audiences, formulating inclusion/exclusion standards, and putting participant recruitment tactics into action.

The third phase entails carefully weighing participant advantages and risks, as well as making sure that any potential harm is minimized.

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Answer:

x = 30

y = 2

Step-by-step explanation:

Please note: the value for x is correct only if this triangle is a right triangle.

This can be solved because 2(5y) = 20 and because if a triangle has all congruent angles then its side lengths are also congruent.

Answer:

1. Convert all measurements to meters:

2.5km * 1,000 = 2,500m;.250km * 1,000 = 250m; 2,500cm / 100 = 25m

25,000cm / 100 = 250m; 250mm / 1,000 =.25m

2.) Compare the converted measurements. Therefore, the quantities that are equivalent to 250m are:

.250km; 25,000cm

Step-by-step explanation:

Answer:

x = -4   or   x = 5

Step-by-step explanation:

To solve the absolute value equation

|X| = k

where X is an expression in x, and k is a non-negative number,

solve the compound equation

X = k or X = -k

Here we have |2 - 4x| = 18

In this problem, the expression, X, is 2 - 4x, and the number, k, is 18.

We set the expression equal to the number, 2 - 4x = 18, and we set the expression equal to the negative of the number, 2 - 4x = -18. Then we solve both equations.

2 - 4x = 18  or  2 - 4x = -18

-4x = 16   or   -4x = -20

x = -4   or   x = 5

Answer:

x = -5 . x= 4

Step-by-step explanation:

because |4| = 4 and |-4| = 4

you can see that TWO inputs can get an output of (lets say) 4

The absolute value function can be seen as a function that ignores negative signs

so to get an OUTPUT of "18" using the absolute value function

there are really two ways of getting there

"2-4x = 18"  AND "2-4x = -18"

if you solve both of those you will find that -5 and 4 will

produce the 18 and -18

Answer:

a=4, k=2, and b= -pi/4

Step-by-step explanation:

<3

Answer:

A

Step-by-step explanation:

A function is that of which has only one x value. Therefore you are looking for the graph that does not have multiple x values. Doing a vertical line test to see whether there is more than one point on a line of the graph will show you that A is the only one that has one answer for each x value that is given. All the other graphs have two points for some of the x's, which makes them not a function.

Answer:

B

Step-by-step explanation:

The only answer choice that makes sense!!!!!

Answer: well depends on how much points you scored in your last game

Step-by-step explanation:

Answer:

B  Angle obtuse Since 126o 32 ' is bigger  90o but  smaller than 180o.

Step-by-step explanation:

Acute: An angle that measures < 90o.

Right: An angle that measures 90o.

Obtuse : An angle that is > 90o but < 180o.

Straight: An angle that measures 180o.

Answer: 5 lbs

Step-by-step explanation: 1 2/3 x 3= 5

Answer:

5 pounds

Step-by-step explanation:

1 2/3 x 3 = 5 :)

Answer:

Correct answer is:

C. \(F(x) =-x^{2} -3\)

Step-by-step explanation:

We are given a function:

\(G(x) = x^{2}\)

The graph of \(G(x)\) is also shown in the given question figure.

It is a parabola with vertex at (0,0).

Sign of \(x^{2}\) is positive, that is why the parabola opens up.

General equation of parabola is given as:

\(y = a(x-h)^2+k\)

Here, in G(x), a = 1

Vertex (h,k) is (0,0).

As seen from the question figure,

The graph of F(x) opens down that is why it will have:

Sign of \(x^{2}\) as negative. i.e. \(a = -1\)

And vertex is at (0,-3)

Putting the values of a and vertex coordinates,

Hence, the equation of parabola will become:

\(y = -1(x-0)^2+(-3)\\y = -x^2-3\)

The correct answer is:

C. \(F(x) =-x^{2} -3\)

The required equation of graph f(x) is \(y = -x^{2} -3\)

Given that,

The graph of f(x), resembles the graph of G(x) = \(x^{2}\).

We have to find,

Which of the following could be the equation of  f(x).

According to the question,

Function, \(G(x) = x^{2}\),

The graph in the given question figure. It is a parabola with vertex at (0,0).

By the graph predict that Sign of \(x^{2}\)  is positive, that is why the parabola opens up.

General equation of parabola is given by,

\(y = a(x-h)^{2} +k\)

Where, a = 1, and vertex (h, k) is (0,0).

The graph of F(x) unknown function opens down ,

Sign of \(x^{2}\) as negative. and the vertex is at (0,-3)

To find the equation of function f(x),

Putting the values of a and vertex coordinates,

\(y = a(x-h)^{2} +k\)

The equation of parabola become:

\(y = -1(x-0)^{2} +(-3)\\\\y = -x^{2} -3\)

Hence, The required equation of f(x) is \(y = -x^{2} -3\).

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Answer:

Step-by-step explanation:

take 30 degree as reference angle

using sin rule

sin 30=opposite /hypotenuse

1/2=opposite/2\(\sqrt{3\)

opposite=2\(\sqrt{3\) /2

opposite=\(\sqrt{3\)

Answer:

√3

Step-by-step explanation:

let length of side opposite 30⁰ be x

sin 30= x/ (2√3)

½=x/(2√3)

cross multiply

2x=2√3

x=√3

length opposite 30⁰= √3

Answer:

The vertical angle to <CHF is 6. Below is the explanation

Step-by-step explanation:

Given:

     Two lines intersected by a third line. There formed 8 angles. Some angles are numbered from 1 to 6.

To find:

     Vertical angle to <CHF.

Vertical angles are opposite angles formed when two lines intersect. So, <CHF is the angle numbered as 4. So, the vertical angle to this angle 4 is angle 6.

So,  the vertical angle to <CHF is 6.

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The graph of the equation is shown below

From the question, we are to graph the given equation

The given equation is

-3 = 5x - y

To graph the equation,

First we will determine the x-intercept and y-intercept

x-intercept

Put y = 0 in the equation

-3 = 5x - 0

-3 = 5x

x = -3/5

y-intercept

Put x = 0 in the equation

-3 = 5(0) - y

-3 = 0 - y

-3 = -y

y = 3

Using the x-intercepts and y-intercepts, we can plot the graph of the equation.

The graph of the equation is shown below

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Answer:

12x + 15 = 12x - 15 can not be solved.

We can not find out what x equals.

Step-by-step explanation:

You can solve - 5x - 25 = 5x + 25

x = - 5

You can solve 7x + 21 = 21

x = 0

You can solve 12x + 15 = 3(4x + 5)

x = AllRealNumbers

That leaves 12x + 15 = 12x - 15

This equation can not be solved