Use the trigonometric function values of the quadrantal angles to evaluate. 3 tan 180° +7 sin 90° 3 tan 180° +7 sin 90° = (Simplify your answer. Type an integer or a fraction.) ***
Use the trigon
Answers
The value of 3 tan 180° + 7 sin 90° is undefined.
The quadrantal angles are the angles at which the terminal side of an angle intersects the x-axis or y-axis.
These angles are 0°, 90°, 180°, and 270°.
The value of tangent of 180° is undefined because the cosine of 180° is -1, which means that the denominator of the tangent function, which is cosine, is zero.
Therefore, 3 tan 180° is undefined.
The value of sine of 90° is 1.
Therefore, 7 sin 90° = 7.
To summarize,3 tan 180° + 7 sin 90° = undefined + 7 = undefined (since 3 tan 180° is undefined)
Hence, the value of 3 tan 180° + 7 sin 90° is undefined.
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Related Questions
Minimum. Q1: Q2: Q3: Maximum
14, 11,8, 1, 23, 20, 17, 5, 19, 10, 12, 22
Please help!
Answers
Answer:
Min: 1 Max: 23 Q1: 9 Q2: 13 Q3: 19.5
The slope of the line that passes through the points (6, 9) and (11, 2) is
Answers
Answer: (5,7)
Step-by-step explanation:
Write 55g as a percentage of 2.2 kg.
Answers
Answer:
2.5%
Step-by-step explanation:
Please mark Brainliest when able.
Suppose that you plan on taking a summer job selling magazine subscriptions. The magazine company will pay you 75 cents for selling the first subscription. For each additional subscription sold, the magazine company will pay you 5 cents more than what was paid for the previous subscription. How much will you earn by selling 150 magazine subscriptions?
Answers
Answer:
671.25
Step-by-step explanation:
Find the parametric equations and symmetric equations for the line of intersection of the planes x + 2y + 3z = 1 and x - y + z = 1
Answers
The line of intersection between the planes x + 2y + 3z = 1 and x - y + z = 1 can be described by the parametric equations x = 1 - t, y = t, and z = t. The symmetric equations for this line are (x - 1)/-1 = (y - 0)/1 = (z - 0)/1.
To find the parametric equations for the line of intersection between the given planes, we need to solve the system of equations formed by the two planes. We can start by eliminating one variable, say x, by subtracting the second equation from the first equation:
(x + 2y + 3z) - (x - y + z) = 1 - 1
3y + 2z = 0
This equation represents a plane parallel to the line of intersection. Now we can express y and z in terms of a parameter, let's call it t. Let y = t, then we can solve for z:
3t + 2z = 0
z = -3/2t
Substituting y = t and z = -3/2t back into one of the original equations, we get:
x + 2t + 3(-3/2t) = 1
x + 2t - (9/2)t = 1
x = 1 - t
Therefore, the parametric equations for the line of intersection are x = 1 - t, y = t, and z = -3/2t. These equations describe the line as a function of the parameter t.
The symmetric equations describe the line in terms of the differences between the coordinates of any point on the line and a known point. Taking the point (1, 0, 0) on the line, we can write:
(x - 1)/-1 = (y - 0)/1 = (z - 0)/1
This gives the symmetric equations for the line of intersection: (x - 1)/-1 = (y - 0)/1 = (z - 0)/1. These equations represent the relationship between the coordinates of any point on the line and the coordinates of the known point (1, 0, 0).
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( 0 0
Manufacturers of a new pain medication designed a double-blind experiment to test their new formula to see if
sufferers of migraines feel relief after taking it. A total of 80 patients with migraines were recruited for the study.
The researchers asked each patient to rate their pain on a scale of 1 (mild) to 10 (severe). Then the researchers
randomly assigned each migraine sufferer either the new pain medication or a placebo. One hour later, each
patient was again asked to rate the level of pain from 1 to 10. Why was it important for this experiment to be
double-blind?
If the subjects knew they were not receiving the active treatment, they might quit the experiment.
It was important for both the subjects and the researchers to know which treatment was being assigned to the
subjects so they could see if the improvement of migraine pain was due to the new medication or to the
expectation of getting better.
O It was important for the subjects to know if they were receiving an active treatment so they could keep track of
any possible side effects. If the researchers knew which subjects received which treatments, they might have
treated one group of subjects differently from the other group.
If subjects knew they were receiving an active treatment, researchers would not have known if any
improvement was due to the new medication or to the expectation of feeling better. If the researchers knew
which subjects received which treatments, they might have treated one group of subjects differently from the
other group.
Answers
For your question... the answer would be D
Brainliest will be given, but must have correct answer.
What is the midpoint between (-8, 5) and (2, -2)?
the possible answer's are:
1. (-5, 1.5)
2. (-6, 3)
3. (-3, 1.5)
4. (-5, 3.5)
Answers
Answer:
4. (-5, 3.5)
Step-by-step explanation:
a student wants to show that the product of three consecutive positive integers is divisible by 6. unfortunately, they are not convinced that one of these integers must be divisible by 3 (they skipped every lecture during the number theory unit). using induction, write a proof that never uses the fact that one of the integers must be divisible by 3.
Answers
The product of three consecutive positive integers is always divisible by 6.
We can prove this statement using mathematical induction. The statement we want to prove is that the product of three consecutive positive integers is divisible by 6. To do this, we will use the induction hypothesis:
Let P(n) be the statement: The product of three consecutive positive integers starting with n is divisible by 6.
We will prove that P(n) is true for all natural numbers n.
Base Case: Let n = 1. Then the product of the three consecutive positive integers (1, 2, 3) is 6, which is divisible by 6. Therefore, P(1) is true.
Inductive Step: Assume that P(k) is true, where k is any natural number. We will now prove that P(k + 1) is also true.
The three consecutive positive integers starting with k + 1 are k + 1, k + 2, and k + 3. We can then rewrite the product of these three consecutive positive integers as follows:
(k + 1)(k + 2)(k + 3) = k3 + 3k2 + 6k + 6.
Since we assumed that P(k) is true, we know that k3 + 3k2 + 6k is divisible by 6. Therefore, the entire expression k3 + 3k2 + 6k + 6 is also divisible by 6. Since 6 is also added to this expression, we know that the product of three consecutive positive integers starting with k + 1 is divisible by 6. Therefore, P(k + 1) is true.
Since we have proven the base case and the inductive step, we have proven the statement for all natural numbers n. Therefore, the product of three consecutive positive integers is always divisible by 6.
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Please help I do not understand, please explain!
Answers
Answer:
A. 600 \(\leq\) 350+140+x
Step-by-step explanation:
The elevator can only carry 600 pounds or less.
Answer A is the only answer choice with the less than or equal to symbol that is next to 600lbs.
Hope this helps!
:)
A plane ticket to New York costs 120 the tax is 9.5 what is the cost of the flight
Answers
Over the summer, Jarrod did online tutoring with kids. He was paid a total of $342.30 for 42 hours of tutoring. What was his hourly rate of pay?
Answers
Answer:
His hourly rate is $8.15.
Step-by-step explanation:
The hourly rate is how much he earns in one hour. We know how much he earns in 42 hours ($342.3).
So what we need to do is to divide that amount ($342.3) by 42.
And we get $8.15.
What property of adaptive immunity allows a person to have the chicken pox when he or she is six years old and still be immune to chicken pox at age 45?
Answers
The property of adaptive immunity enables a person to have the chicken pox when he or she is six years old and still be immune to chicken pox at age 45 exists Memory.
What is adaptive immunity?Specificity and memory are two crucial properties that determine adaptive immunity. Both specificity and memory pertain to the adaptive immune system's capacity to recognize and attack certain diseases, as well as to promptly react to pathogens to which it has already been exposed.
Adaptive immunity can offer an enduring defense, perhaps for the duration of a person's lifespan. In certain circumstances, such as with chickenpox, it does not confer permanent protection; for instance, a person who recovers from measles is now protected against measles for the rest of their life.
Specificity, diversity, specialization, memory, and self/non-self identification are the immunologic characteristics that define adaptive immunity, and these cells both create and show antigen-binding cell surface receptors.
The property of adaptive immunity enables a person to have the chicken pox when he or she is six years old and still be immune to chicken pox at age 45 exists Memory.
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What is the point slope of a line with the slope 4 that contains the point (-3, -4) ?
A. y + 4 = -4 (x + 3)
B. y - 4 = -4 (x - 3)
C. y - 4 = 4 (x - 3)
D. y + 4 = 4 (x + 3)
Answers
Answer:
Correct choice: D.
\(y+4=4(x+3)\)
Step-by-step explanation:
The point-slope form of the equation of a line is:
\(y-k=m(x-h)\)
Where m is the slope and (h,k) is a point through which the line passes.
According to the question, the slope of a line is m=4 and it contains the point (-3,-4), thus, replacing the values:
\(y-(-4)=4(x-(-3))\)
Operating:
\(\boxed{y+4=4(x+3)}\)
Correct choice: D.
Many businesses and organizations insist that official communications use professional-looking fonts, such as times new roman. fonts characterized as less professional, such as comic sans, should be avoided. a student would like to determine if font choice makes a difference in the average grade on a typed response in english classes. there are currently four english classes available from which the student can collect data, and each class has a similar writing assignment. at the start of the assignment, students are randomly assigned a font, either times new roman or comic sans, and then complete the assignment. the teachers grade the assignments, and the mean grade for each font is found.Method A: At the start of the assignment, students choose a font, either Times New Roman or Comic Sans, and then complete the assignment.Method B: At the start of the assignment, students are randomly assigned one of two fonts, either Times New Roman or Comic Sans, and then complete the assignment.In both methods, the teachers grade the papers received, and the mean grade for each font is determined.Which method describes an experiment?a. Method A is an experiment because the students choose their own font.b. Method B is an experiment because the students are randomly assigned a font.c. Both methods describe experiments because both fonts are used on the assignment.d. Neither method describes an experiment because a third font should be included for comparison.
Answers
Hope this helps.
Luke and isabella make scale drawings.The scale from isabella's drawing is 6 m to 3 cm. The height of the fountain in isabella's drawing is 5 cm.The scale from the fountain to luke's drawing is 5m to 2cm. What is the height of the fountain in luke's drawing
Answers
Answer:
The answer is "\(2.5 \ cm\)"
Step-by-step explanation:
While Luke is 5m to 2cm in size, it implies that every 2cm to Luke's drawing is 5m in real life. That real pond width must therefore be 5 m, given the fountain's width is 2 cm. As shown in the illustration, the step size for IsabelLa from the illustration to real life is \(\frac{6}{3} =2\), which makes it simple to multiply any measure in the cm of her illustration by 2 to accomplish the exact size in m. So, in another direction around, they just have to divide the value by 2, instead of the divide from reality for drawing. So if the actual worth is 5m, it ought to be \(\frac{5}{2} = 2.5 \ cm\) in its width.
DS
6) You and five friends went out to a movie. You all
shared a large tub of popcorn that cost $16.50,
and you ordered individual boxes of candy that
cost $3,72 per person. You and your friends decide
to split the bill evenly. How much did each of you
pay?
Answers
Answer:
You would each pay $6.42
Have a good one!
equipos, resuelvan los siguientes problemas
hacer paquetes de 6 libretas y paquetes de 6 lápices de co-
ores, los maestros de una escuela se percataron de que habla
mas paquetes de lápices que de libretas, y de que en ambos
casos no sobraba nada. Se sabe que la cantidad original de
bretas está entre 185 y 190, y la de lápices, entre 220 y 225.
¿Cuál será la cantidad original de libretas y lápices de colores?
y
Answers
Answer:
186 notebooks; 222 pencils
Step-by-step explanation:
1. Notebooks
The number of notebooks must be between 185 and 190.
To have no notebooks left over, the number of 6-packs must be an integral multiple of six.
The only integral multiple of six between 185 and 190 is 186.
186÷ 6 = 31
So, there are 31 packs containing a total of 186 notebooks.
2. Pencils
The number of pencils must be between 220 and 225.
To have no pencils left over, the number of 6-packs must be an integral multiple of six.
The only integral multiple of six between 220 and 225 is 222.
222÷ 6 = 37
So, there are 37 packs containing a total of 222 pencils.
There were originally 186 notebooks and 222 pencils.
O EQUATIONS AND INEQUALITIESSolving a word problem with two unknowns using a linear...
Answers
Given:
Total number of hamburgers and cheeseburgers sold = 439
There were 61 fewer cheeseburgers than hamburgers sold.
Let's determine the number of hamburgers sold.
Let C represent the number of cheeseburgers
Let H represent the number of hamburgers sold.
We have the system of equations:
• H + C = 439
,• C = H - 61
Now, let's solve the equations simultaneously using the substitution method.
Substitute (H - 61) for C in the first equation.
We have:
H + (H - 61) = 439
H + H - 61 = 439
2H - 61 = 439
Add 61 to both sides:
2H - 61 + 61 = 439 + 61
2H = 500
Divide both sides by 2:
\(\begin{gathered} \frac{2H}{2}=\frac{500}{2} \\ \\ H=250 \end{gathered}\)Therefore, they sold 250 hamburgers on Friday.
ANSWER:
250 hamburgers
Alex’s times for running a mile are Normally distributed with a mean time of 5.28 minutes and a standard deviation of 0.38 seconds. Chris’s times for running a mile are Normally distributed with a mean time of 5.45 seconds and a standard deviation of 0.2 seconds. Ten of Alex’s times and 15 of Chris’s times are randomly selected. Let x Overbar Subscript Upper A Baseline minus x Overbar Subscript Upper C represent the difference in the mean times for Alex and Chris. Which of the following represents the standard deviation of the sampling distribution for x Overbar Subscript Upper A Baseline minus x Overbar Subscript Upper C?
0.09
0.13
0.17
0.18
Answers
The sampling distribution for x Overbar Subscript Upper A Baseline minus x Overbar Subscript Upper C is 0.13.
What is formula of standard deviation?The standard deviation of the sampling distribution for the difference in sample means can be calculated using the formula:
Standard deviation of the sampling distribution = √[(σ\(A^2\)/nA) + (σ\(C^2\)/nC)]
Where nA and nC are the sample sizes for Alex and Chris, respectively, and A and C are the standard deviations of the population for Alex and Chris, respectively.
Substituting the given values, we get:
Standard deviation of the sampling distribution = \(\sqrt{[(0.38^2/10) + (0.2^2/15)]}\)
= \(\sqrt{0.01444 + 0.00222}\)
= \(\sqrt{0.01666}\)
= 0.129
Therefore, the answer is 0.13.
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Which of the following functions is graphed below?
Answers
Answer: Im not sure but have a wonderful day god bless you.
Step-by-step explanation:
A basketball player made 36 free throws in 16 games.find the ratio of free throws to games.
Answers
Answer:
36/16, 36:16, 36 to 16
Step-by-step explanation:
all above are correct
you can write ratios 3 different ways
what is the slope of the line
Answers
Mikayla was making origami frogs if she made 8 frogs a day how many will it take her to make 200?
Answers
Answer:
25 days
Step-by-step explanation:
You divide the 200 she wants to make by the 8 she averages daily to get how many days it would take. Hope this helps!
PLEASE HELP! Sakura's house is at an elevation between 113 m and 120 m above sea level. Her friend Ted lives about 15 m below her.
A: Choose the compound inequality that describes the elevation x of Ted's house
B. ted lives between _____ m and ______ m above sea level​
Answers
Answer:
98 and 105
Step-by-step explanation:
The lengths of phone calls (in minutes) made by a travel agent can be modeled as a continuous random variable X with probability density f(x) = 0.25e−0.25x for x > 0. What is the probability that a particular phone call will take more than 7 minutes?
Answers
The probability that a particular phone call will take more than 7 minutes is 0.0813 or 8.13%.
To find the probability that a phone call will take more than 7 minutes.
We need to calculate the integral of the probability density function (PDF) from 7 to infinity.
Given the probability density function (PDF) of the random variable X:
\(f(x) = 0.25e^(^-^0^.^2^5^x^)\) for x > 0
We can integrate this function from 7 to infinity to find the desired probability:
P(X > 7) = ∫[7, ∞] f(x) dx
Performing the integration:
\(P(X > 7)=\int\limits^\infty_7 {0.25e^-^0^.^2^5^x} \, dx\)
\(P(X > 7) = [-4 \times e^(^-^0^.^2^5^x^)]\) evaluated from 7 to ∞
=\([-4\times0] - [-4 \times e^(^-^1^.^7^5^)]\)
=\(0 + 4e^(^-^1^.^7^5^)\)
= \(4e^(^-^1^.^7^5^)\)
=0.0813
Therefore, the probability that a particular phone call will take more than 7 minutes is approximately 0.0813 or 8.13%.
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for 0 ≤ t ≤ 30 , the rate of change of the number of mosquitoes on tropical island at time t days is modeled by r(t)
Answers
The rate of change of the number of mosquitoes on a tropical island for 0 ≤ t ≤ 30 is modeled by r(t). The behavior and interpretation of the rate of change will depend on the specific context and characteristics of the function r(t).
Let's explain this in detail below:
For 0 ≤ t ≤ 30, the rate of change of the number of mosquitoes on a tropical island at time t days is modeled by r(t). This implies that r(t) is the derivative of the mosquito population, P(t), with respect to time, t. In other words, r(t) = dP/dt, where dP/dt is the change in the population P with respect to the change in time t over an infinitesimal time period. Hence, the mosquito population changes as a function of time due to the mosquito's life cycle, the environment, and other factors that influence their survival.
The mosquito population model helps us to understand how their population changes over time and the factors that influence them. Mosquitoes reproduce and die, and these processes are captured in the mosquito population model. The model also considers the environment, which includes rainfall, humidity, temperature, and other factors that affect mosquito breeding, feeding, and survival.
Additionally, mosquito control measures such as insecticides, repellents, and other interventions also affect mosquito populations. Understanding the rate of change of mosquito populations is crucial for predicting mosquito-borne disease outbreaks and designing effective control strategies.
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Question 3 of 10
The triangles shown below must be congruent.
600
60
12
12
2010
61°
O A. True
B. False
Answers
which point is farther from the origin, (,1,2,-2) or (0,0,5)?
Answers
Answer:
\( \sqrt{ {1}^{2} + {2}^{2} + {( - 2)}^{2} } = \sqrt{1 + 4 + 4} = \sqrt{9} = 3\)
(1, 2, -2) is 3 units away from the origin.
(0, 0, 5) is 5 units away from the origin.
So (0, 0, 5) is farther away from the origin.
find the value of each variable 4y 3x 8 12
Answers
Answer:
4x812y3
Step-by-step explanation:
1
A recipe for 6 servings of pudding calls for 2/3 cups of cream. How much cream is needed for 18 servings of
pudding?
Answers
Answer:
2 cups
Step-by-step explanation:
18/6 = 3
3 x 2/3 = 6/3
6/3 = 2