Two angles are complementary. One angle measures 27. Find the measure of the other angle. Show your work and / or explain your reasoning

Answers

Answer 1

Answer:

63°

Step-by-step explanation:

Complementary angles are defined as two angles whose sum is 90 degrees. So one angle is equal to 90 degrees minuses the complementary angle.

The other angle = 90 - 27 = 63


Related Questions

The graph shows two lines, K and J. A coordinate plane is shown. Two lines are graphed. Line K has the equation y equals 2x minus 1. Line J has equation y equals negative 3 x plus 4. Based on the graph, which statement is correct about the solution to the system of equations for lines K and J? (4 points)

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The given system of equations is:y = 2x - 1y = -3x + 4The objective is to check which statement is correct about the solution to this system of equations, by using the graph.

The graph of lines K and J are as follows: Graph of lines K and JWe can observe that the lines K and J intersect at a point (3, 5), which means that the point (3, 5) satisfies both equations of the system.

This means that the point (3, 5) is a solution to the system of equations. For any system of linear equations, the solution is the point of intersection of the lines.

Therefore, the statement that is correct about the solution to the system of equations for lines K and J is that the point of intersection is (3, 5).

Therefore, the answer is: The point of intersection of the lines K and J is (3, 5).

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Suppose that f(x, y) = x³y². The directional derivative of f(x, y) in the directional (3, 2) and at the point (x, y) = (1, 3) is Submit Question Question 1 < 0/1 pt3 94 Details Find the directional derivative of the function f(x, y) = ln (x² + y²) at the point (2, 2) in the direction of the vector (-3,-1) Submit Question

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For the first question, the directional derivative of the function f(x, y) = x³y² in the direction (3, 2) at the point (1, 3) is 81.

For the second question, we need to find the directional derivative of the function f(x, y) = ln(x² + y²) at the point (2, 2) in the direction of the vector (-3, -1).

For the first question: To find the directional derivative, we need to take the dot product of the gradient of the function with the given direction vector. The gradient of f(x, y) = x³y² is given by ∇f = (∂f/∂x, ∂f/∂y).

Taking partial derivatives, we get:

∂f/∂x = 3x²y²

∂f/∂y = 2x³y

Evaluating these partial derivatives at the point (1, 3), we have:

∂f/∂x = 3(1²)(3²) = 27

∂f/∂y = 2(1³)(3) = 6

The direction vector (3, 2) has unit length, so we can use it directly. Taking the dot product of the gradient (∇f) and the direction vector (3, 2), we get:

Directional derivative = ∇f · (3, 2) = (27, 6) · (3, 2) = 81 + 12 = 93

Therefore, the directional derivative of f(x, y) in the direction (3, 2) at the point (1, 3) is 81.

For the second question: The directional derivative of a function f(x, y) in the direction of a vector (a, b) is given by the dot product of the gradient of f(x, y) and the unit vector in the direction of (a, b). In this case, the gradient of f(x, y) = ln(x² + y²) is given by ∇f = (∂f/∂x, ∂f/∂y).

Taking partial derivatives, we get:

∂f/∂x = 2x / (x² + y²)

∂f/∂y = 2y / (x² + y²)

Evaluating these partial derivatives at the point (2, 2), we have:

∂f/∂x = 2(2) / (2² + 2²) = 4 / 8 = 1/2

∂f/∂y = 2(2) / (2² + 2²) = 4 / 8 = 1/2

To find the unit vector in the direction of (-3, -1), we divide the vector by its magnitude:

Magnitude of (-3, -1) = √((-3)² + (-1)²) = √(9 + 1) = √10

Unit vector in the direction of (-3, -1) = (-3/√10, -1/√10)

Taking the dot product of the gradient (∇f) and the unit vector (-3/√10, -1/√10), we get:

Directional derivative = ∇f · (-3/√10, -1/√10) = (1/2, 1/2) · (-3/√10, -1/√10) = (-3/2√10) + (-1/2√10) = -4/2√10 = -2/√10

Therefore, the directional derivative of f(x, y) = ln(x² + y²) at the point (2, 2) in the direction of the vector (-3, -1) is -2/√10.

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Calculate: e² |$, (2 ² + 1) dz. Y $ (2+2)(2-1)dz. 17 dz|, y = {z: z = 2elt, t = [0,2m]}, = {z: z = 4e-it, t e [0,4π]}

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To calculate the given expressions, let's break them down step by step:

Calculating e² |$:

The expression "e² |$" represents the square of the mathematical constant e.

The value of e is approximately 2.71828. So, e² is (2.71828)², which is approximately 7.38906.

Calculating (2² + 1) dz:

The expression "(2² + 1) dz" represents the quantity (2 squared plus 1) multiplied by dz. In this case, dz represents an infinitesimal change in the variable z. The expression simplifies to (2² + 1) dz = (4 + 1) dz = 5 dz.

Calculating Y $ (2+2)(2-1)dz:

The expression "Y $ (2+2)(2-1)dz" represents the product of Y and (2+2)(2-1)dz. However, it's unclear what Y represents in this context. Please provide more information or specify the value of Y for further calculation.

Calculating 17 dz|, y = {z: z = 2elt, t = [0,2m]}:

The expression "17 dz|, y = {z: z = 2elt, t = [0,2m]}" suggests integration of the constant 17 with respect to dz over the given range of y. However, it's unclear how y and z are related, and what the variable t represents. Please provide additional information or clarify the relationship between y, z, and t.

Calculating 17 dz|, y = {z: z = 4e-it, t e [0,4π]}:

The expression "17 dz|, y = {z: z = 4e-it, t e [0,4π]}" suggests integration of the constant 17 with respect to dz over the given range of y. Here, y is defined in terms of z as z = 4e^(-it), where t varies from 0 to 4π.

To calculate this integral, we need more information about the relationship between y and z or the specific form of the function y(z).

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In a laboratory experiment, the count of a certain bacteria doubles every hour. present midnighe a) At 1 p.m., there were 23 000 bacteria p How many bacteria will be present at r b) Can this model be used to determine the bacterial population at any time? Explain. 11. Guy purchased a rare stamp for $820 in 2001. If the value of the stamp increases by 10% per year, how much will the stamp be worth in 2010? Lesson 7.3 12. Toothpicks are used to make a sequence of stacked squares as shown. Determine a rule for calculating t the number of toothpicks needed for a stack of squares n high. Explain your reasoning. 16. Calc b) c) 17. As de: 64 re 7 S

Answers

Lab bacteria increase every hour. Using exponential growth, we can count microorganisms. This model assumes ideal conditions and ignores external factors that may affect bacterial growth.

In the laboratory experiment, the count of a certain bacteria doubles every hour. This exponential growth pattern implies that the bacteria population is increasing at a constant rate. If we know the initial count of bacteria, we can determine the number of bacteria at any given time by applying exponential growth.

For example, at 1 p.m., there were 23,000 bacteria. Since the bacteria count doubles every hour, we can calculate the number of bacteria at midnight as follows:

Number of hours between 1 p.m. and midnight = 11 hours

Since the count doubles every hour, we can use the formula for exponential growth

Final count = Initial count * (2 ^ number of hours)

Final count = 23,000 * (2 ^ 11) = 23,000 * 2,048 = 47,104,000 bacteria

Therefore, at midnight, there will be approximately 47,104,000 bacteria.

However, it's important to note that this model assumes ideal conditions and does not take into account external factors that may affect bacterial growth. Real-world scenarios may involve limitations such as resource availability, competition, environmental factors, and the impact of antibiotics or other inhibitory substances. Therefore, while this model provides an estimate based on exponential growth, it may not accurately represent the actual bacterial population under real-world conditions.

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State the cardinality of the following. Use No and c for the cardinalities of N and R respectively. (No justifications needed for this problem.) 1. NX N 2. R\N 3. {x € R : x² + 1 = 0}

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1. The cardinality of NXN is C

2. The cardinality of R\N  is C

3. The cardinality of this {x € R : x² + 1 = 0} is No

What is cardinality?

This is a term that has a peculiar usage in mathematics. it often refers to the size of set of numbers. It can be set of finite or infinite set of numbers. However, it is most used for infinite set.

The cardinality can also be for a natural number represented by N or Real numbers represented by R.

NXN is the set of all ordered pairs of natural numbers. It is the set of all functions from N to N.

R\N consists of all real numbers that are not natural numbers and it has the same cardinality as R, which is C.

{x € R : x² + 1 = 0} the cardinality of the empty set zero because there are no real numbers that satisfy the given equation x² + 1 = 0.

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