Answer:
2(t+6)-5
Step-by-step explanation:
The unknown number is t
=> Adding 6 will make it t+6
=> Multiplying 2 will make it 2(t+6)
=> Subtracting 5 will make it 2(t+6)-5
Answer:
[tex]\frac{t+6}{2}[/tex] - 5
Step-by-step explanation:
[tex]\frac{t+6}{2}[/tex] - 5
In the previous problem, how does the angle of depression from the top of the taller building relate to the angle of elevation from the top of the shorter building? a. they are congruentb. they are complementaryc. they are supplementaryd. they are alternate interior anglese. they are alternate exterior anglesf. they are corresponding angles
The angle of depression from the top of the taller building and the angle of elevation from the top of the shorter building are alternate interior angles.
Alternate interior angles are the angles formed when a transversal intersects two coplanar lines. They lie on the inner side of the parallel lines but on the opposite sides of the transversal. The transversal crosses through the two lines which are Coplanar at separate points.
The angles of elevation and depression are formed by the line of sight and the horizontal line. When the line of vision is above the horizontal line, the angle is of elevation, and if the line of sight is below the horizontal, the angle is of depression.
If the angle of depression of the taller building is 15° the angle of elevation of the shorter building is 15° too.
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suppose there are three cards, a, b, and c. two of them will be drawn one by one with replacements. what is the probability of getting (a, b), i.e. the first card is a and the second card is b?
the probability of getting (a, b), i.e. the first card is a and the second card is b is 2/3 by conditional probability.
The potential of an event or outcome occurring based on the existence of a prior event or outcome is known as conditional probability. It is computed by dividing the likelihood of the earlier occurrence by the likelihood of the subsequent, or conditional, event.
This is where the independent event and dependent event notion is used. Consider a student who misses class twice each week, omitting Sunday. What are the possibilities that he will take a leave of absence on Saturday of the same week if it is known that he will be absent from school on Tuesday? It has been noted that situations where the outcome of one event influences the outcome of a subsequent event are termed as conditional probability
We can work this out directly from the definition of conditional probability,
[tex]P(G_1|G_2)=P(G_1nG_2)/(P(G_1)[/tex]
Exactly one of the three cards has sides, so
P(G1∩G2)=1/3
and P(G1)=1/2
THEN
the probability of getting (a, b), i.e. the first card is a and the second card is b IS = 1/3÷1/2 = 2/3
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A prize is divided in the ratio 7:5. One share is £122 more than the other what is the total amount?
a = amount given to the 1st share, ratio of 5.
a + 122 = amount given to the 2nd share, ratio of 7.
T = total amount
so the total amount is really "T", and we'll be splitting that into a 7 : 5 ratio, that is, we'll be dividing "T" by (7 + 5) and distribute accordingly.
[tex]\stackrel{\textit{total split by 7 + 5}}{\cfrac{T}{7+5}\implies \cfrac{T}{12}} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\stackrel{\textit{we know the 1st share is}}{a= 5\cdot \cfrac{T}{12}}\implies a=\cfrac{5T}{12} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{we know the 2nd share is}}{a+122= 7\cdot \cfrac{T}{12}}\implies a+122=\cfrac{7T}{12}\implies \stackrel{\textit{substituting from above}}{\left( \cfrac{5T}{12} \right)+122=\cfrac{7T}{12}} \\\\\\ 122=\cfrac{7T}{12}-\cfrac{5T}{12}\implies 122=\cfrac{2T}{12}\implies 122=\cfrac{T}{6}\implies \boxed{732=T}[/tex]
What is the distance between these two points?
(2,0) and (2,−5)
The distance between these two points (2,0) and (2,−5) is 5 unit.
The distance between two points is the length of the line segment connecting the two points on the plane. The formula for finding the distance between two points is usually d=√((x2 – x1)² + (y2 – y1)²). This formula is used to find the distance between any two points on the coordinate or x-y plane.
d=√((2 – 2)² + (-5 – 0)²)
d = √(0+25)
d = 5 unit
if the coordinates of two points P and Q are such that, (x1, 0) and (x2, 0), the distance between PQ will be given by:
PQ = |x2 – x1|
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What is the name of the following image?
a
Ray TS
b
Line Segment TS
c
Line ST
d
Ray ST
Answer:
ray ts
Step-by-step explanation:
if the product is -8 and the sum is 2 what are the other 2 numbers?
Answer:
4 and -2
Step-by-step explanation:
4 + -2 = 2
4 x -2 = -8
Which question can be answered using the expression 3 ÷ 1
?
4 8
Responses
A
How many 1 -pound pieces of fudge are in 3
-pound fudge?
8 4How many 1 -pound pieces of fudge are in 3 -pound fudge? 8 4
B
How many 3 -pound pieces of fudge are in 1 -pound fudge?
4 8How many 3 -pound pieces of fudge are in 1 -pound fudge? 4 8
C
Rob ate 1 of 3 pound of fudge. How much fudge did Rob eat?
8 4Rob ate 1 of 3 pound of fudge. How much fudge did Rob eat? 8 4
D
Rob ate 3 of 1 pound of fudge. How much fudge did Rob eat?
4 8
The question that can be answered using the expression 3 ÷ 1 is "How many 1-pound pieces of fudge are in a 3-pound fudge?". The correct option is B.
The expression "3 ÷ 1" is a mathematical expression that represents a division operation. In this case, the operation is "3 divided by 1".
To understand what this expression means, we can think of it in terms of a real-world scenario. For example, we can think of it as dividing 3 pounds of fudge into 1-pound pieces.
If we divide 3 pounds of fudge into 1-pound pieces, we can ask the question "How many 1-pound pieces of fudge are in 3 pounds of fudge?" This is the question that can be answered using the expression "3 ÷ 1".
To solve this division problem, we simply divide 3 by 1. The result is 3. This means that there are 3 one-pound pieces of fudge in 3 pounds of fudge.
So, to summarize, the expression "3 ÷ 1" means "3 divided by 1" and can be interpreted as dividing 3 pounds of fudge into 1-pound pieces. The answer to the question "How many 1-pound pieces of fudge are in 3 pounds of fudge?" is 3.
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Of the following, which is not a solution to the differential equation y′′′+4y′=0?
A. Y=10
B. Y=4e^−2x
C. Y=3sin(2x)
D. Y=2cos(2x)+4
Answer:
A Y=10
Step-by-step explanation:
Answer:
Option B is the right answer.
Step-by-step explanation:
See Attachment
Write the linear equation given slope is -1/3 and the point (-9,-1)
The Linear Equation for the line with slope as -1/3 and the point (-9,-1) is y = (-1/3)x - 4 .
We use the point slope form of a linear equation to write the equation of a line with its slope and a point on the line.
The point-slope form is ⇒ y - y₁ = m(x - x₁) ;
Where m is = slope of line, and (x₁, y₁) is a point on line.
The Slope (m) of line is = -1/3 and point on line (x₁, y₁) is = (-9, -1),
Now , we substitute these values ;
we get ;
⇒ y - (-1) = (-1/3)(x - (-9)) ;
⇒ y + 1 = (-1/3)(x + 9) ;
Simplifying further ,
we get ;
⇒ y + 1 = (-1/3)x - 9/3 ;
Subtracting 1 from both sides, we get:
⇒ y = (-1/3)x - 4
Therefore, the equation of the line is y = (-1/3)x - 4 .
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Wendy walked 2 miles in 30 minutes. At this rate, how many miles could Wendy walk in 90 minutes?
Determine the value of the missing angle using the inverse trig function.
Answer:
x = 59.036°
Step-by-step explanation:
tan (BÂC) = BC/AB
tan= opposite/ adjacent
Then subs AB = 3 BC= 5 BÂC= x into tan (BÂC) = BC/AB
tan(x)=5/3
x= tan^-1 (5/3)
x= 59.036°
a manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 430 gram setting. it is believed that the machine is underfilling the bags. a 21 bag sample had a mean of 421 grams with a standard deviation of 15 . assume the population is normally distributed. a level of significance of 0.1 will be used. find the p-value of the test statistic. you may write the p-value as a range using interval notation, or as a decimal value rounded to four decimal places.
A manufacturer working at the 430 gram setting, and a 21 bag sample had a mean of 421 grams with a standard deviation of 15. The p-value of test statistic is 0.0074.
To test whether the bag filling machine works correctly at the 430 gram setting, we can conduct a one-sample t-test. The null hypothesis is that the true mean weight of the bags filled by the machine is equal to 430 grams, and the alternative hypothesis is that the true mean weight is less than 430 grams.
The test statistic is calculated as:
t = (sample mean - hypothesized mean) / (sample standard deviation / sqrt(sample size))
Plugging in the values given in the problem, we get:
t = (421 - 430) / (15 / sqrt(21)) = -2.77
The degrees of freedom for the t-distribution are n - 1 = 20.
Using a t-table or calculator, we can find the p-value associated with a t-score of -2.77 and 20 degrees of freedom. The p-value turns out to be 0.0074 (rounded to four decimal places).
Since the p-value is less than the level of significance of 0.1, we can reject the null hypothesis and conclude that the bag filling machine is underfilling the bags at the 430 gram setting.
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a statistics professor finds that when he schedules an office hour for student help, an average of students arrive. find the probability that in a randomly selected office hour, the number of student arrivals is
The probability of 3 students arriving at a randomly selected office hour is 0.27(27%). This can be calculated by using the Poisson distribution equation which is P(x)=e^(-λ)*(λ^x/x!).
In the above equation, λ is equal to the average number of arrivals which is 3.3. Plugging these values into the equation gives us P(3)= e^(-3.3)*(3.3^3/3!) = 0.27, this means that the probability of 3 students arriving in randomly selected office hours is 0.27.The Poisson distribution is used to calculate the probability of a certain number of events occurring in a fixed interval of time or space. It is commonly used in engineering, economics, and other fields.
This equation is especially useful in situations like this one where the arrival rate is known and the probability of a certain number of arrivals needs to be determined.
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A statistics professor finds that when she schedules an office hour for student help, an average of 3.3 students arrive. Find the probability that in a randomly selected office hour, the number of student arrivals is 3.
pls help i don’t understand
The gradient of a curve at the point (x,y) is given by dy/dx=2(x+3)^1/2-x. The curve has a stationary point at (a,14), where a is a positive constant. Find the value of a.
Using the gradient of the curve given, the value of a is 6
What is the value of aThe stationary point of a curve is a point where the slope of the curve is equal to zero. So, to find the value of a, we need to set the derivative of the curve equal to zero and solve for x.
dy/dx = 2(x + 3)^(1/2) - x
Setting this equal to zero, we have:
2(x + 3)^(1/2) - x = 0
Expanding the square root and rearranging, we get:
x = 2(x + 3)^(1/2)
Squaring both sides of the equation, we have:
x^2 = 4(x + 3)
Expanding the right side and rearranging, we have:
x^2 - 4x - 12 = 0
Using the quadratic formula, we can find the values of x that satisfy this equation:
x = [-(-4) ± √((-4)^2 - 4(1)(-12))] / 2(1)
x = [4 ± √(16 + 48)] / 2
x = [4 ± √64] / 2
x = [4 ± 8] / 2
So, the two possible values of x are:
x = 6, x = -2
Since we are looking for a positive value of x, the only solution that works is x = 6.
Therefore, the value of a is equal to 6.
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how many decimeters are in 3.6 millimeters
Final Answer:
There are 0.036 decimeters in 3.6 millimeters.
Explanation:
To convert from millimeters to decimeters, we can use the following measurement conversion:
1 millimeter = 0.01 decimeters
So, to find out how many decimeters are in 3.6 millimeters, we can multiply 3.6 by 0.01:
3.6 * 0.01 = 0.036
Therefore, there are 0.036 decimeters in 3.6 millimeters.
U={ positive integer between 9 and 21} P={odd numbers} Given that P and Q are subsets of U a. List all the members of P, Q and U b. Illustrate the information on a Venn diagram c. Find P1 and Q1
The set of the numbers are all integers from 9 to 21 inclusive
What is a set?It is the collection of items to form a group
All the members of:
P={odd numbers}
P={9,11,13,15,17,19,21}
Q={Even numbers}
Q= {10,12,14,16,18,20}
U={ positive integer between 9 and 21}
This means that U = {9,10,11,12,13,14,15,16,17,18,19,20,21}
Therefore, P1 and Q1
P prime include all the elements in the universal set that are not in the subset P = {10,12,14,16,18,20}
and Q prime include all the elements in the universal set that are not in subset Q = P={9,11,13,15,17,19,21}
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it would be 180 - 136 right?
Answer:
It would be 180 - 136 = 44
Step-by-step explanation:
Answer:
yes you are correct
Step-by-step explanation:
180-136=44
Pre cal due tonight pls help
The dot product a . b is -22
What is the dot productThe dot product, also known as scalar product or inner product, is a binary operation that takes two vectors and returns a scalar (single-valued) quantity. The dot product of two vectors is equal to the product of the magnitude (length) of the vectors and the cosine of the angle between them.
Given two vectors, A and B, the dot product is defined as:
A ∙ B = |A| * |B| * cos(θ)
where |A| and |B| are the magnitudes of vectors A and B, and θ is the angle between them.
a = <3, -2>
b = <-2, 8>
a . b = (3 * -2) + (-2 * 8)
a . b = -6 + - 16
a . b = -22
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if each coded item in a catalog begins with 4 distinct letters followed by 4 distinct nonzero digits, find the probability of randomly selecting one of these coded items with the first letter a vowel and the last digit even.
The probability of randomly selecting one of these coded items with the first letter a vowel and the last digit even is 5/52
probability is an occurence of a particular events. This particular problem can be solved using permutations and combinations.
Given that, if each coded item in a catalog begins with 4 distinct letters followed by 4 distinct nonzero digits
Like the 4 distinct letters be A,B,C,D
4 distinct nonzero digits are 2,3,4,5
The probability of randomly selecting one of these coded items with the first letter a vowel and the last digit even is approximately equals to the 10/104 = 5/52
Here the probability is an occurence of a particular events. This particular problem can be solved using permutations and combinations and the probability of randomly selecting one of these coded items with the first letter a vowel and the last digit even is approximately equals to 5/52
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On a blueprint of a house, the kitchen is 5 inches long. If the actual kitchen is 20 feet long, find the scale of the blueprint.
The scale of the blueprint is 1 in : 4 ft.
What is scale?A map scale is the relationship between a distance on a map and the corresponding distance on the earth.
Given that, on a blueprint of a house, the kitchen is 5 inches long, the actual kitchen is 20 feet long, we are asked to find the scale of the blueprint.
Since, the kitchen in the map is 5 in long whereas n earth it is 20 ft long.
Therefore, the ratio =
5 in / 20 ft = 1 in / 4 ft
Hence, the scale of the blueprint is 1 in : 4 ft.
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Need some help I need to finish this last problem
Answer:
NO
Step-by-step explanation:
no she cannot. you do not need to do any math for this, none of these measurements are equal to or greater than 6 feet, and i dont think lily's gonna snap her fishing pole in half 6>4, 4=the longest thing about this box, aka the length
Answer: No, she can not store the fishing pole in the box.
No, Lily can not store the fishing pole into the box. The pole is 6 feet long, while the box is 4 feet long. Even if you tried to insert the pole into the box vertically it would not fit. Therefore, no Lily cannot fit the box.
I hope this helped & Good Luck <3 !!!
The measure of <2 is 5 less than 4 times the measure of <1. Find the measures of all the angles. answer pls
If the measure of <2 is 5 less than 4 times the measure of <1. The measure of angle <1 is 37 degrees, and the measure of angle <2 is 143 degrees. The measure of angle <3 is 55 degrees.
How to find the measures of all the angles?Let's call the measure of angle <1 "x".
From the problem, we know that:
4 times the measure of angle <1 is equal to the measure of angle <2 plus 5:
4x = measure of angle <2 + 5
So the measure of angle <2 is 4x - 5.
Next, we know that the measures of all angles in a triangle must add up to 180 degrees.
Therefore, we have:
x + (4x - 5) + measure of angle <3 = 180
Expanding and simplifying:
5x - 5 + measure of angle <3 = 180
5x + measure of angle <3 = 185
5x = 185
Finally, solving for x:
x = 37
So the measure of angle <1 is 37 degrees, and the measure of angle <2 is 4 * 37 - 5 = 143 degrees. The measure of angle <3 is 185 - 5x = 185 - 5 * 37 = 55 degrees.
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jake and kim share some money in the ratio 1:3
kim gets $90 more than jake.
how much does kim get
Answer: $135
Step-by-step explanation:
We have the ratio 1 : 3.
Kim gets $90 more than Jake.
So 1 : 3 can also be written as x : x+90
If x * 3 equals x+90, we can create the equation 3x=x+90. Solving this results in x being equal to 45
Kim gets $135 (x+90=45+90=135)
What is the source of this graph?
Answer:
to help navigate the answer
What is 16% of 175 I need help
Answer: 28
Step-by-step explanation:
16% = 0.16
Percents are just decimals!
Now you can put this in your calculator, and you will get 28.
However:
It might help you later to know that x% of y = y% of x
In other words, 16% of 175 is the same thing as 175% of 16
This problem is easier, since we can break 175% into 1 and 3/4th. 3/4th of 16 is easy to calculate, (its 12), and so we can add 12 to 16 to find the answer, which is still 28 :)
No calculator needed!
can someone please help me(10 points will give brainliest!!!)
Answer:
$2.6015900 toysStep-by-step explanation:
You want to know the meaning of D(2.60) = 159 if D(p) tells you the number of toys demanded at price p in hundreds.
Pattern matchingCompare D(p) to D(2.60) and you see that p=2.60. The problem statement tells you p is the price. This means ...
the price is $2.60The problem statement tells you that D(p) is the number of toys in hundreds. When D(p) is 159, the demand is 159 hundred toys.
the demand is 15900 toys<95141404393>
Use the Angle Addition Postulate to find x
The value of x by using the addition postulate of an acute angle is 36.
What are acute angles?Acute angles are those between 0 and 90 degrees, and those angles are less than 90 degrees. When two rays intersect at a vertex, an angle is created.
An acute angle is one that is smaller than 90 degrees in length and has all internal angles that are less than 90 degrees.
Here, we have an acute angle NCQ that is 70 degrees. Using the addition postulate to determine the value of x, we have:
x + 34 = 70
x = 70 + (-34)
x = 70 - 34
x = 36
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yesterday, peter the rabbit picked 84 carrots from his garden and ate one-fourth of them. today, he ate 12 carrots. how many carrots are left?
Peter the rabbit have 51 carrots are left.
one fourth means A quarter is represented in mathematics using fractions. Mathematically, a quarter fraction is a whole divided into four equal parts. where 1 indicates the part being referenced and 4 indicates the number of parts the whole is divided into. In numeric format, it is written as ¼.
so total carrot is 84
and he ate one fourth on that day
so remaining are
84*1/4= 21
21 he eat on that the then remaining =
84 - 21 = 63
63 carrots are remain for next day and
he eat 12 carrot on next day
so remaining = 63 - 12 = 51
so 51 carrot left .
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Identify the initial amount a and the grwoth factor b in the exponential function f(t)=14^x
The initial amount A is 1 and the growth factor B is 1.4 in the Exponential function f(t)=14^x.
Given,
f(x) = 1.4^x
It is an exponential function.
y = a.b^x
where a is the initial quantity and b is the growth/ decay component.
Now we are able to examine the given feature with
A = 1
B = 1.4
An exponential function is a mathematical function that has the form f(x) = a^x, where a is a constant greater than zero and not equal to one, and x is a variable. This function is widely used in a variety of fields, such as finance, physics, and biology, due to its ability to model growth, decay, and change over time.
Exponential functions are essential in understanding various natural phenomena, from population growth to radioactive decay, and they play a crucial role in the advancement of scientific research.The exponential function has several unique properties, such as exponential growth, where the function grows at an increasing rate as x increases. Additionally, the function has an asymptotic relationship with the x-axis, meaning it never actually touches the x-axis but gets infinitely close to it.
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