Find the value of a^2+b when a=-2and b=5

Answer: 4

Step-by-step explanation: Divide both sides by -3 so the x is by itself. When you divide both sides by -3, you get x =4.

Answer:

4

Step-by-step explanation:

Divide -3 on both sides so that x is by itself

-3x = -12

-3      -3

-3 is cancelled out

-12 divided my -3 is 4

Since both numbers are negative it would end up positive.

If the numbers are both positive then it would be positive as well.

And if one number is positive and the other is negative then the answer would be negative.

The answer would be: 4

I hope it helps! Have a great day!

Aircraft a has 371 seats and Aircraft b has 235 seats.

A linear equation is an algebraic equation that has highest degree of 1.

The total number of seats in both aircraft is 606.

Assuming aircraft b has x number of sheets.

∴ Aircraft a has (x + 136) number of sheets.

From the question itself we can form a numerical expression which is

x + (x + 136) = 606.

2x + 136 = 606.

2x = 606 - 136.

2x = 470.

x = 470/2.

x = 235.

So, Aircraft b has 235 seats and Aircraft a has ( 235 + 136) = 371 seats.

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Answer:

11/20

Step-by-step explanation:

4/5 - 1/4

We need to get a common denominator of 20

4/5 * 4/4 = 16/20

1/4 *5/5 = 5/20

Replacing the fractions with their equivalent fractions

16/20 - 5/20

11/20

The equation of the line y = mx + b can be used to calculate the slope of a line m = ( y₂ - y₁ ) / ( x₂ - x₁ ) that passes through two points.

A line is defined as a curve showing the shortest distance between 2 points.

Here,

The slope of the line passing through two points ( x₁, y₁ ) and ( x₂, y₂ ) is given as :

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

The line that connects two locations has the equation y = mx + b, where m is the slope of the line and b is a constant.

We can find b, using the x, y, and m values in the equation of a line to obtain the y-intercept.

Therefore, the Slope of the line can be given as m = ( y₂ - y₁ ) / ( x₂ - x₁ ) and equation of line y = mx +b.

Hence, option A is correct.

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Answer:

A or Find the slope using the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction, and then substitute one point and the slope into the equation y = m x + b to find the y-intercept.

Step-by-step explanation:

Answer:

[tex]A = 4x^2 - 50x + 150[/tex]

Step-by-step explanation:

Since we are given that the path is `x` meters wide, e can express both the length and the width of the pool by subtracting `2x` from the length and width of the outside edge of the path.

[tex]w = 15 - 2x\\l = 10 - 2x[/tex]

Therefore, we can express the area of the pool using [tex]x[/tex] by substituting the values of [tex]w[/tex] and [tex]l[/tex] into the formula for the area of a rectangle.

[tex]A = w \times l\\A = (15-2x)(10 - 2x)\\\to A = 15 \times 10 - 15 \times 2x - 2x \times 10 - 2x \times (-2x)\\\to A = 150 - 30x - 20x + 4x^2\\\to A = 4x^2 - 50x + 150[/tex]

Answer:

x + 6 = -6

Step-by-step explanation:

Assuming x = -6

[tex]x+6=0[/tex]

Subtract 6

[tex]x+6-6=0-6[/tex]

Simplify arithmetic

[tex]x=0-6[/tex]

Simplify arithmetic(again)

[tex]x=-6[/tex]

we technically solved the equation right at the beginning when we assumed x was equal to -6 in order to group the constants to the right.

Hope this helps, have a great day!

The formula for r will be C/2π.

The radius of the yo-yo will be 6.02 feet.

It should be noted that circumference simply means the distance round the circle.

In this case, the circumference is given as 37.8 feet.

The formula is illustrated as:

C = 2πr

r = C/2π

The radius will be:

r = C / 2π

r = 37.8 / (2 × 3.14)

r = 37.8 / 6.28

r = 6.02

Therefore, the radius of the yo-yo will be 6.02 feet.

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Answer:

5x = 15

2x = 6

10x = 30

8x = 24

21x = 63

Step-by-step explanation:

The equations that can give you an answer of 3 are the following

[tex]3x=9[/tex]

[tex]6x=18[/tex]

[tex]11x=33[/tex]

[tex]10x=30[/tex]

[tex]7x=21[/tex]

The equations above are one step linear equations

and many many more

x=2 y+5 is a tangent line to the circle x^2+y^2=5 at the point (1,-2).

This is further explained below.

Generally, the equation for is  mathematically given as

Differentiate both sides of the equation of the circle with respect to x, treating y=y(x) as a function of x:

[tex]x^2+y^2=5 \Longrightarrow 2 x+2 y \frac{\mathrm{d} y}{\mathrm{~d} x}=0 \\\\ \frac{\mathrm{d} y}{\mathrm{~d} x}=-\frac{x}{y}[/tex]

This gives the slope of any line tangent to the circle at the point (x, y). Rewriting the given line in slope-intercept form tells us its slope is

[tex]x=2 y+5 \\\\ y=\frac{1}{2} x-\frac{5}{2} \\\\ slope =\frac{1}{2}[/tex]

In order for this line to be tangent to the circle, it must intersect the circle at the point (x, y) such that

[tex]-\frac{x}{y}=\frac{1}{2} \\ \\\\ y=-2 x[/tex]

In the equation of the circle, we have

[tex]x^2+(-2 x)^2=5 x^2=5 \\\\ x=\pm 1 \\\\ y=\mp 2[/tex]

If x=-1, then

[tex]-1=2 y+5\\\\ y=-3 \neq 2[/tex]

If x=1, then

[tex]1=2 y+5 \\\\ y=-2$[/tex]

In conclusion, as expected. Therefore x=2 y+5 is a tangent line to the circle x^2+y^2=5 at the point (1,-2).

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The value of x for the equation 4 log₃2-2 log₃x=1 is 2.30946

The logarithm is exponentiation's opposite function in mathematics. This indicates that the exponent to which a set number, base b, must be increased in order to obtain a specific number x, is represented by the logarithm of that number.

Given,

4 log₃2-2 log₃x=1

log₃ 2⁴ - log₃ x² = 1

using logₐ(m - n) = logₐ(m/n)

log₃(2⁴ / x²) = 1

2⁴ / x² = 3¹

x = 4/√3

x = 2.30946

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After direct variation y = 6/5 when x = 4.

So,

The initial statement is y = kx

Then to find y when x = 4.

When x = -3:

y = 3/10 × 4 ⇒ y = 6/5

Therefore, after direct variation y = 6/5 when x = 4.

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The profit function for the concert is presented as follows;

y = -100•x² + 2,000•x - 1,000

The maximum profit is $9,000

A profit function is one that gives the profit of a business which is the difference between the business's revenue and the costs of the business.

Profit = Revenue - Cost

Revenue = Quantity × Ticket price

Cost = Quantity × unit cost

Which gives;

y = Q•x - Q•c = Q•(x - c)

Given that the quantity, Q, varies, and Q•(x - c) is the product of two variables, a quadratic function is used as follows;

y = a•x² + b•x + c

When x = 0, y = -1000

Which gives;

y = a×0² + b×0 + c = -1000

c = -1000

When x = 3, y = 4,100

Which gives;

4,100 = a•3² + b•3 - 1000 = 9•a + 3•b - 1000

4,100 = 9•a + 3•b - 1000

5,100 = 9•a + 3•b

When x = 6, y = 7,400

Which gives;

7,400 = a•6² + b•6 - 1000 = 36•a + 6•b - 1000

7,400 = 36•a + 6•b - 1000

8,400 = 36•a + 6•b

Solving gives;

a = -100, b = 2,000

Which gives;

y = -100•x² + 2,000•x - 1,000

The profit function is therefore;

The maximum profit is therefore at point, x = -2000/(2×(-100)) = 10

Which gives;

Max profit = -100×10² + 2,000×10 - 1,000 = 9,000

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The value of x in the absolute value inequality is given as5 - 10|3x + 3| < 95 is all set of real numbers

The absolute value inequality is given as

5 - 10|3x + 3| < 95

Subtract 5 from all sides of the absolute value inequality

So, we have

- 10|3x + 3| < 90

Multiply -1/10 to all sides of the absolute value inequality

So, we have

|3x + 3| > -9

This means that the value of x is all set of real numbers

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Answer to this question is:

Domain of given function is (0,∞),{x|x>0}

Range of given function is (0,∞),{y|y>0}

Inverse of given function is 9/x²

The domain is all values of x that make the expression defined.The entire range of independent variable values is the domain of a function.

This definition can be stated simply as follows: The domain is the collection of all x-values that can be used to make the function "work" and produce actual y-values.

When choosing the domain, keep in mind that a fraction's denominator (bottom) cannot be 0.

Interval Notation:(0,∞)

Set-Builder Notation:{x|x>0}

The set of all valid y values constitutes the range.Graph may be used to find the values.

Interval Notation:(0,∞)

Set-Builder Notation:{y|y>0}

For calculation of inverse:

∴Domain of given function is (0,∞),{x|x>0}

Range of given function is (0,∞),{y|y>0}

Inverse of given function is 9/x²

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The closest side length of each side of the garden is 7 feet .

It is given that Billy is planting a square garden that is 48 ft.²

Putting A = 48 ft.² in equation (1) , we get

       [tex]48=a^2\\a=\sqrt{48} \\a=6.92[/tex]

which is approximately equal to 7

Hence , closest side will be 7 ft.

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Simplification of given expression is , -1

In, mathematics a logarithmic equation is inverse of exponential equation. That means, we can easily convert the logarithmic equation into exponential equation and vice versa. The basic form of the logarithm function can be written as  .

   [tex]log_ax=N[/tex]

where, a is the base of function or equation

            x define expression

Mathematically, if   [tex]a^N=x[/tex] is an exponential function then, this can be converted to logarithmic function as   [tex]log_ax=N[/tex].

There are many formulas that are given to us for solving several simple and complex problems based on logarithmic functions and logarithmic equations.

Some important formulas of logarithms are :

According to question,

log₃(x+1)-log₃(3 x²-3 x-6)+log₃(x-2)

applying formula of log a - log b , equation can be written as

[tex]= log_3(\frac{x+1}{3x^{2} -3x-6} ) + log_3(x-2)\\\\=log_3(\frac{x+1}{3{(x+1)(x-2)} } ) + log_3(x-2)\\\\= log_3(\frac{1}{3 {(x-2)} } ) + log_3(x-2)[/tex]

now, applying formula of log a+ log b

[tex]=log_3(\frac{1}{3{(x-2)} } (x-2)) \\\\=log_3(\frac{1}{3} )\\[/tex]

apply, [tex]log_a(\frac{1}{x}) = -log_a x[/tex]

[tex]= - log_33[/tex]

= -1

Thus, Simplification of given expression is , -1

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The inverse of the fuction y = 3 x + 2 is y = x/3 - 2/3.

So,

All we have to do to find the inverse of an equation is switch the variables x and y.

Now, solve for y as follows:

Therefore, the inverse of the fuction y = 3 x + 2 is y = x/3 - 2/3.

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Answer:

4

Step-by-step explanation:

Well, 2*2 = 4, so the answer is 4

Answer:6x-24y

Step-by-step explanation:You basically distribute the 6 with the x and the you do the same with the 4y. and thats how u get ur answer

Answer:

6x - 24y

Step-by-step explanation:

I'm guessing that they want you to distribute the 6 to each term inside the parentheses...

The process of ordering objects or numbers is known as permutation. Combinations are a method of choosing items or numbers from a collection or group of items so that the order of the items is irrelevant.

Combinations are used to group objects or to determine how many subgroups can be formed from the given collection of objects. Additionally, we use permutations to determine the amount of potential combinations of unrelated objects.

Fir example, if we want to select 2 players from 6. This will be:

= 6! / 2! (6 - 2)!

= 15 ways

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Diagonal FH bisect angles EFG and EHG and the angle FEH is congruent to angle FGH.

Why is the triangle congruent?

We need to check all the statements that are applicable for the diagram.

1) EFGH is a rectangle.

The above statements is not true in general. EFGH is a quadrilateral with opposites sides are equal, it may be rectangle in some cases but it is not always be a rectangle.

2). EFGH has 4 congruent sides.

The above statement is also false. EFGH has two opposite sides are congruent.

3). Diagonal FH bisect angles EFG and EHG.

The above statement is true. Triangle EFH and FGH both are isosceles triangles and hence they both have equal angles for the equal sides. Thus, it is true in all cases.

4). Diagonal FH is perpendicular to side Fe.

The above case is not true in general.

5). Angle FEH is congruent to angle FGH.

Yes, the above statement is the correct one, because both the triangles are congruent to each other.

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The complete question is -

Triangle FGH is the image of isosceles triangle FEH after a reflection across line HF. Select all the statements that are a result of corresponding parts of congruent triangles being congruent

The statement that shows Sam's purpose for making the investment,  is; Sam wants an investment that offers a higher return than stocks.

We know that bonds refers to a type of investment that could be held for a while the hope of making returns. Both the bonds and the stocks are common types of investments that are traded in the equities market. They are held by buyers with the sole hope that they could yield returns.

However, the bonds tend to be more secure than the stocks. The stocks are actually an overly volatile kind of investment. The bonds when mature tends to provide a high return on investment for the investor compared to the stocks.

Hence, the statement that shows  Sam's purpose for making the investment,  is; Sam wants an investment that offers a higher return than stocks.

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Answer:

c - 12 = 4

Step-by-step explanation:

Hello!

Decreasing a number by something is subtracting that number with something.

c decreased by 12 can be represented as c - 12.

When something is something, we set it equal to each other. We can set that equal to 4 to find our equation.

Equation: c - 12 = 4

Answer:

y = - 3x - 12

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 7, 9 ) and (x₂, y₂ ) = (- 5, 3 )

m = [tex]\frac{3-9}{-5-(-7)}[/tex] = [tex]\frac{-6}{-5+7}[/tex] = [tex]\frac{-6}{2}[/tex] = - 3 , then

y = - 3x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (- 5, 3 )

3 = 15 + c ⇒ c = - 3 - 15 = - 12

y = - 3x - 12 ← equation of line

Answer: $75 difference per shirt

Step-by-step explanation:

Adult tickets that were sold were 210 .

Let the no. of children be x and no. of adults be y .

According to ques .

x + y = 385     - eq 1

4 x + 6 y = 1960          - eq 2

Solving linear equation in 2 variable by method of substitution ,

multiply   - eq 1 by 4 ,

4 x + 4 y = 1540     - eq 3

multiplying  - eq 3 by - 1

- 4 x - 4 y = - 1540         - eq 4

Adding  - eq 2 and   - eq 4

2 y = 420

y = 210

Hence , 210 adult tickets were sold .

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The solution 'x' of the expressed logarithmic expression is 17.65.

A logarithmic equation one in which the variable x contains a logarithm.

The variable in an exponential formula is signified by an exponent. To solve exponential equations, first see if both sides of the equation can be presented as powers of the same number. Because unless you can't, start taking the common logarithm of both equation sides and solve the problem using property 7.

Now, as per the stated log expression;

3 ln x + ln 5 = 7

Apply the Power Rule on the first term of the given equation;

ln x³ + ln 5 = 7

Now, by the Product Rule, we can re-write the equation in the form;

ln (x³×5) = 7

ln (5x³) = 7

Using the exponent form of the log on both side.

e∧ln (5x³)  = e⁷

As, we have the same base for the obtained expression. Use the exponent rule;

(5x³)  = e⁷

x³ = e⁷/5

Substitute the value of exponent e = 2.72

x³ = (2.72)⁷/5

x³ = 5507.5

Take cube root on both side;

x = 17.65

Thus,  solution for the value of 'x' for expressed logarithmic expression is 17.65.

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Answer: A, C and F

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

because if it has two Pairs that's 2 on each side of the side of the shape

so, when you have a figure of 2 parallel sides id would be a parallelogram