Consider the changes you make when solving an equation. Classify whether each operation will change or preserve (not change) the solution set.

Answer:

40

Step-by-step explanation:

Answer:

tell me the number of the all students

Answer:

4 hours :)

Step-by-step explanation:

Lets multiply to solve :)

1 hr: 2 1/2

2 hrs: 5

3 hrs: 7 1/2

4 hrs: 10 hrs

it will take 4 hours to walk 10 miles :)

Have an amazing day!!

Please rate and mark brainliest!

Answer:

x=  16 /20420505

Step-by-step explanation:

Let's solve your equation step-by-step.

5(215)x=16

Step 1: Simplify both sides of the equation.

20420505x=16

Step 2: Divide both sides by 20420505.

20420505x /20420505  =  16 /20420505

x=  16 /20420505

0.4

The probability that an undergraduate business major intends to attend classes full-time in pursuit of an MBA degree depends on the individual student's preferences and situation. Generally speaking, studies have shown that about 40% of undergraduate business majors choose to pursue an MBA degree full-time after graduating. Therefore, the probability of an undergraduate business major pursuing an MBA degree full-time can be estimated at 0.4.

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Answer:

468

Step-by-step explanation:

it's def c because that's where the intersection is, which is the solution (there is only one solution)

Answer:

O x<3

Step-by-step explanation:

The domain of the given function is x<3. Therefore, option C is the correct answer.

The domain and range are defined for a relation and they are the sets of all the x-coordinates and all the y-coordinates of ordered pairs respectively. For example, if the relation is, R = {(1, 2), (2, 2), (3, 3), (4, 3)}, then:

Domain = the set of all x-coordinates = {1, 2, 3, 4}

Range = the set of all y-coordinates = {2, 3}

The given function is y=ln((-x+3)/2)

Find the domain by finding where the equation is defined. The range is the set of values that correspond with the domain.

Find the domain by finding where the equation is defined.

Interval Notation:

(-∞, 3)

Set-Builder Notation:

{x|x<3}

Therefore, option C is the correct answer.

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Answer:

x*8 + y*14 ≥ 20

Step-by-step explanation:

We know that:

A batch of brownies makes 8 servings.

A pie makes 14 servings.

He wants to make, at least, 20 servings.

Then if he makes x batches of brownies, he will get x times 8 servings.

If he makes y pies, he will get y times 14 servings.

Adding that, he will get a total of:

x*8 + y*14 servings

And because he wants to make at least 20 servings (he can make 20 or more)

The inequality will be:

x*8 + y*14 ≥ 20

Where the "≥" symbol means that the expression at the left is greater than or equal to the expression of the right

The value of this golden ratio = 1/2 (1 + √5) = 1.618

Ratio:

Majority of the explanations for ratio and proportion use fractions. A ratio is a fraction that is expressed as a:b, but a proportion says that two ratios are equal. In this case, a and b can be any two integers. The foundation for understanding the numerous concepts in mathematics and science is provided by the two key notions of ratio and proportion. We apply the concepts of ratio and proportion every day, for example, while dealing with money in business or when preparing any meal, etc. Students occasionally struggle to understand the difference between ratio and proportion.

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Answer:

5 km/h

Step-by-step explanation:

Speed of man in still water = s

Speed of current = c

Speed upstream = s - c

Distance upstream = 24 km

Time upstream = 6 hours

Speed downstream = s + c

Distance downstream = 36 km

Time downstream = 6 hours

Speed Equation

speed = distance/time

distance = speed × time

d = st

We write a distance equation for upstream and a second distance equation for downstream.

Upstream:

d = st

24 = (s - c) × 6

Divide both sides by 6 and switch sides:

s - c = 4        Equation 1

Downstream:

d = st

36 = (s + c) × 6

Divide both sides by 6 and switch sides.

s + c = 6       Equation 2

We now have two equations in two variables. We use equations 1 and 2 as a system of equations.

s - c = 4

s + c = 6

Add the equations to use the addition method.

2s = 10

s = 5

Answer: 5 km/h

Answer:

∠ A = 34°

Step-by-step explanation:

complementary angles sum to 90° , then

5x - 11 + 6x + 2 = 90

11x - 9 = 90 ( add 9 to both sides )

11x = 99 ( divide both sides by 11 )

x = 9

Then

∠ A = 5x - 11 = 5(9) - 11 = 45 - 11 = 34°

Answer:

x = 18

Step-by-step explanation:

3x + 2x = 90

5x = 90

x = 90/5

x = 18

Answer: x=18 degrees

Step-by-step explanation:

We know that a right triangle is 90 degrees

3x+2x=90

5x=90

x=18

The dimensions of the posters are 21 inches and 6 inches

What is the area of the rectangle?

Rectangle is a quadrilateral with opposite sides parallel and equal. And every angle is a right angle. The area of the rectangle equals the product of length and breadth

We are given that, The length of a rectangular poster is 9 more inches than two times its width.

Let the length be l and width be w

Hence the relation can be given as,

l = 2w+9

Also the area of the rectangle is 126

hence

126 = l*w

126 = (2w+9)*w

126 = 2w^2+9w

2 w^2+9w-126=0

On solving the equation we get the value of w as

w= 6 and w =-10.5

The length and width cannot be negative hence

W =6

Hence length equals

L =2w+9

L= 12+9

L=21

Hence the dimensions are length = 21 inches and width = 6inches

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Answer:bdbehayssbeu

Step-by-step explanation:

dhdheheyshshsvv55557

Answer:

C. -2, 1, 1, and 3 only

Answer:17

Step-by-step explanation:

|-3|^3 + 8

3^3 +8

9+8

17

Answer: x=1/3y−2

               y=−x+110

Step-by-step explanation:

Hello Human <3

Here is the answer:

X ∈  { 96, 102, 108, 114, 120, 126, 132, 138, 144, 150, 156, 162, 168, 174, 180, 186, 192, 198, 204, 210, 216, 222, 228, 234, 240, 246, 252, 258, 264, 270, 276, 282, 288, 294, 300, 206, 312, 318, 324, 330, 336, 342, 348, 354, 360, 366, 372, 378, 384, 390, 396, 402, 408, 414 }

Step-by-step explanation:

Answer: The width is 12 feet, since the pool measures 10 by 12.

Step-by-step explanation:

Your aunt will need 120 square feet of land. I know this because you multiply the length by the width, it equals 120. Then I have to look for the perimeter, and I do this by adding the length twice and add the width twice. This would equal 42.

the answer I think is he saved $2.9

Answer:

$2.9

Step-by-step explanation:

The Expression is:

14.5 − 0.8(14.5)

The Answer is:

$2.9

Answer:

23-p

Step-by-step explanation:

if shane picked p fewer you have to subtract p from gavin’s

The expression that can be used to show the number of pears Gavin picked is 23 - p

An expression to show the number of pears Shane picked = 23 - p

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The P-value for the statistic falls between 0.001 and 0.01 (or 0.1%) since it is less than the typical alpha level of 0.05 used to reject or fail to reject the null hypothesis.

To find the p-value for the given t-statistic, we need to use a t-distribution table or calculator with 24 degrees of freedom.

Using a t-distribution table, we can find the p-value for a one-tailed test with 24 degrees of freedom as follows:

Look up the absolute value of the t-statistic in the table (2.63 in this case).

Find the row corresponding to the degrees of freedom (24 in this case).

The intersection of the row and column corresponding to the t-statistic will give us the p-value for the test.

Using this method, we find that the p-value for a one-tailed t-test with 24 degrees of freedom and a t-statistic of -2.63 is approximately 0.008.

Therefore, the P-value for the statistic falls between 0.001 and 0.01 (or 0.1%) since it is less than the typical alpha level of 0.05 used to reject or fail to reject the null hypothesis.

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The expression states that for every linear polynomial p with real coefficients and a nonzero coefficient of x, there is exactly one real root r.

For all linear polynomials with real coefficients and a nonzero coefficient of x, there exists exactly one real root. This can be expressed using the universal quantifier "for all" and the existential quantifier "there exists", connected by the logical connective "and". Additionally, the statement "exactly one real root" can be expressed using the quantifier "there exists" and the logical connective "and".

Using quantifiers and logical connectives, we can express the given fact as follows:

∀p ∃!r ((isLinearPolynomial(p) ∧ hasRealCoefficients(p) ∧ coefficientOfX(p) ≠ 0) → hasRealRoot(p, r))

Explanation:

- ∀p: For every polynomial p
- ∃!r: There exists exactly one real root r
- isLinearPolynomial(p): p is a linear polynomial (degree 1)
- hasRealCoefficients(p): p has real coefficients
- coefficientOfX(p) ≠ 0: The coefficient of x in p is nonzero
- hasRealRoot(p, r): p has a real root r

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Answer:

Hi

Step-by-step explanation:

The expression was reduced to it's lowest expression or term or we say we found the common factor amongst them

Answer:

$16

Step-by-step explanation:

1/4x4=1

So 4x4 = 16

The required heat equation is u(x, t) = (A×cos(λx) + B×sin(λx)) × exp(-λ²t)

To solve the heat equation in the given interval [-6, 0], we can use the separation of variables method. Let's denote the dependent variable as u(x, t), where x represents the spatial variable and t represents the temporal variable.

The heat equation in one dimension is given by:

∂u/∂t = α ∂²u/∂x²,

where α is the thermal diffusivity constant.

To solve this equation, we assume that the solution can be represented as a product of two functions, each depending on a single variable:

u(x, t) = X(x)T(t).

Substituting this into the heat equation, we have:

X(x)T'(t) = αX''(x)T(t),

where prime (') denotes differentiation with respect to the variable.

Dividing both sides by αX(x)T(t), we get:

T'(t)/T(t) = αX''(x)/X(x).

Since the left side depends only on t and the right side depends only on x, both sides must be equal to a constant, which we'll denote as -λ²:

T'(t)/T(t) = -λ² = αX''(x)/X(x).

Now, let's solve the temporal part of the equation:

T'(t)/T(t) = -λ²

This is a separable ordinary differential equation (ODE), and its general solution is given by:

T(t) = exp(-λ²t).

Next, let's solve the spatial part of the equation:

αX''(x)/X(x) = -λ².

This is also a separable ODE, and its general solution is given by:

X(x) = A×cos(λx) + B×sin(λx),

where A and B are arbitrary constants.

Therefore, the general solution to the heat equation is:

u(x, t) = (A×cos(λx) + B×sin(λx)) × exp(-λ²t).

Since we have the given interval [-6, 0], we can apply appropriate boundary conditions to determine the values of A, B, and λ that satisfy the problem.

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Answer:

mB=12-x

Step-by-step explanation:

mA+mC+mB=180

9x-12+5x+24+mB=180

9x+5x-12+24+mB=180

14x+12+mB=180

14x+mB=180-12

14x+mB=168

x+mB=168÷14

x+mB=12

mB=12-x