The volume of the given pyramid is 86 in³ respectively.
What is a pyramid?A three-dimensional shape is a pyramid.
A pyramid's flat triangular faces unite at a common point known as the apex and have a polygonal base.
The bases are joined to the peak to create a pyramid.
The lateral face is a triangle face formed by the connection of each edge of the base to the apex.
A three-dimensional figure is a pyramid.
Its base is a flat polygon.
The remaining faces are all triangles and are referred to as lateral faces.
So, the formula for the volume of the pyramid is:
V = lwh/3
Now, insert values as follows:
V = lwh/3
V = 7.4*7*5/3
V = 86.33333
Rounding off: 86 in³
Therefore, the volume of the given pyramid is 86 in³ respectively.
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Which graph can be used?
which inequality matches this situation : 7 is less than a number a= x ≥ 7b= x < 7c= x >7d= ≤ 7
If 7 is less than a number, x, it means that x is greater than 7. The symbol for representing greater than is >
Thus, the inequality that matches the given situation is
x >7
Option c is correct
HELP ME QUICK
In Shawn's class, all the students have pets. Of those pets,1/5 are cats. Of those cats, 2/3 are alley cats. What fraction of the pets are alley cats?
Answer:
2/15
Step-by-step explanation:
You want to know the fraction that is 2/3 of 1/5.
TimesIn this context, "of" means "times."
2/3 of 1/5 = (2/3)×(1/5) = (2·1)/(3·5) = 2/15
2/15 of the pets are alley cats.
whats the measure of
how many cards must be selected from a standard deck of 52 cards to guarantee that at least three cards of the same (matching) suit are chosen
Answer:
Step-by-step explanation:
17
A certain type of tomato seeds germinates 95% of the time. A backyard farmer planted 25 seeds.
a. What is the probability that exactly 15 will germinate?
b. What is the probability that 22 or more germinate?
c. What is the probability that 23 or fewer germinate?
d. What is the expected number of seeds that germinate?
Let's calculate each of these probabilities and the expected number of seeds germinated.
To solve the given probability problems, we can use the binomial probability formula:
P(x) = C(n, x) * p^x * (1 - p)^(n - x),
where:
P(x) is the probability of exactly x successes,
C(n, x) is the number of combinations of n items taken x at a time,
p is the probability of success in a single trial, and
n is the total number of trials.
Given that the tomato seeds germinate 95% of the time, the probability of success (p) is 0.95. The total number of seeds planted (n) is 25.
a. To find the probability that exactly 15 seeds germinate:
P(x = 15) = C(25, 15) * 0.95^15 * (1 - 0.95)^(25 - 15).
b. To find the probability that 22 or more seeds germinate:
P(x ≥ 22) = P(x = 22) + P(x = 23) + ... + P(x = 25).
c. To find the probability that 23 or fewer seeds germinate:
P(x ≤ 23) = P(x = 0) + P(x = 1) + ... + P(x = 23).
d. The expected number of seeds that germinate (E(x)) can be calculated using the formula:
E(x) = n * p.
Let's calculate each of these probabilities and the expected number of seeds germinated.
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Is 5x+2 equivalent to 5x+2x ?
Answer:
I don't think so
Step-by-step explanation:
If I remember (based on memory) it's not equivalent
Reasoning: there's a different amount of Xs
Answer:
Please answer my question if you can, and gl understanding this! <3
Step-by-step explanation:
No, for if we subtract them, when we cancel out the 5x, 2, the integer, will not be equal to 2x, for not only is 2 already there, it is also being multipled by an integer. It possibly can equal though, if x was either 0, or positive 1, but if the x is not given, then no, they're not equivalent.
PLEASE HELP! 20 points
Answer: 60
Step-by-step explanation:
subtract 24 from 144, then divide each side by 2. x=60
indeed some help me plz
Answer:
3
Step-by-step explanation:
15-2x=3x
or,3x+2x=15
or,5x=15
or,x=15/5
Therefore, x=3.
which choice does not determine the sampling distribution? the population size the population variance the population mean the sample size
The population size does not determine the sampling distribution.
In the give question we have to find which choice does not determine the sampling distribution.
We firstly learn more about sampling distribution
A sampling distribution is a probability distribution of a statistic that is derived from a bigger sample size of individuals chosen at random from a given population. The sampling distribution of a particular population is the distribution of frequencies of a variety of potential outcomes for a population statistic.
So, the population size does not determine the sampling distribution.
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Find The Area Of This Shape.
Answer:
34.65 mi²
Step-by-step explanation:
Area of parallelogramam = b · h
b = 6.3 mi
h = 5.5 mi
Let's solve
6.3 · 5.5 = 34.65 mi²
So, the area of the shape is 34.65 mi²
Lines 39-70 present the author’s argument primarily by
(A) celebrating the appeal of a discredited tradition
(B) exploring the impact of her early experiences on
her acting
(C) explaining her reasons for rejecting a technique
(D) describing challenges commonly met by professional
actors
(E) analyzing insights gained from debates with other
drama professor
Lines 39-70 present the author's argument primarily by: explaining her reasons for rejecting a technique (option C).
What is a comprehension passage?
In a comprehension passage, some questions are given that follow the passage. The questions are to be answered by using the data given in the passage, even if it differs from real-life facts.
Now, given:
The passage is based on the acting skills.The writer stated that Psychological realism's fundamental principle is that characters exist inside of you and that, as you become aware of your own resemblance to the character, you develop a lifelike portrayal of the character. He spoke: This self-centered approach appeared to reach a spiritual dead end. It considered the self to be the character's true home. The main point of contention revolves around what he said in another passage: "I wanted to develop an alternative to the self-based technique, a technique that would begin with the other and come to the self, a technique that would empower the other to find the actor instead of the other way around."This demonstrates that option C is the best choice above all else.
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In the figure above, PQRS is a circle. If PQT and SRT
are straight lines, find the value of x.
Given:
PQRS is a circle, PQT and SRT are straight lines.
To find:
The value of x.
Solution:
Since PQRS is a circle, PQT and SRT are straight lines, therefore, PQRS isa cyclic quadrilateral.
We know that, sum of opposite angles of a cyclic quadrilateral is 180 degrees.
\(m\angle SPQ+m\angle QRS=180^\circ\)
\(81^\circ+m\angle QRS=180^\circ\)
\(m\angle QRS=180^\circ-81^\circ\)
\(m\angle QRS=99^\circ\)
Now, SRT is a straight line.
\(m\angle QRT+m\angle QRS=180^\circ\) (Linear pair)
\(m\angle QRT+99^\circ=180^\circ\)
\(m\angle QRT=180^\circ-99^\circ\)
\(m\angle QRT=81^\circ\) ...(i)
According to the Exterior angle theorem, in a triangle the measure of an exterior angle is equal the sum of the opposite interior angles.
Using exterior angle theorem in triangle QRT, we get
\(m\angle PQR=m\angle QRT+m\angle QTR\)
\(x=81^\circ+22^\circ\)
\(x=103^\circ\)
Therefore, the value of x is 103 degrees.
what is 34.78 as a fraction
Answer:
34 39/50 or 1739/50 as improper fraction
Step-by-step explanation:
34 is the whole number, and you have .78 left over
.78 is equal to 78/100
when simplified, 78/100 becomes 39/50
Answer is 34 39/50
Thanks for the Brainly points by the way :)
a radio tower is located 350 feet from a building. from a window in the building, a person determines that the angle of elevation to the top of the tower is 42 degrees and that the angle of depression to the bottom of the tower is 28 degrees . how tall is the tower?
The height of the tower is approximately 336.4 feet. To find the height of the tower, we can use trigonometric ratios in a right triangle formed by the tower, the person's line of sight, and the ground.
Let's label the height of the tower as "h" in feet. We can divide the right triangle into two smaller triangles: one with the angle of elevation of 42 degrees and the other with the angle of depression of 28 degrees.
In the triangle with the angle of elevation, the side opposite the angle of elevation is the height of the tower, h, and the side adjacent to the angle of elevation is the distance from the window to the tower, which is 350 feet. We can use the tangent function to relate the angle of elevation and the sides of the triangle:
tan(42 degrees) = h / 350
Similarly, in the triangle with the angle of depression, the side opposite the angle of depression is also the height of the tower, h, and the side adjacent to the angle of depression is the distance from the window to the tower, which is still 350 feet. Using the tangent function again, we have:
tan(28 degrees) = h / 350
We can solve these two equations simultaneously to find the value of h. Rearranging the equations:
h = 350 * tan(42 degrees)
h = 350 * tan(28 degrees)
Evaluating these expressions, we find that h is approximately 336.4 feet.
Therefore, the height of the tower is approximately 336.4 feet.
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A quadrilateral has no right angles, and two pairs of congruent, parallel sides. What is the figure?
square
rhombus
parallelogram
rectangle
assume that the average sat score of first year ucf students is 1175 with a standard deviation of 120 and that the distribution of their sat scores is bell-shaped symmetric. find the minimum score of top 2.5% students.
To find the minimum score of the top 2.5% of students, we need to calculate the z-score corresponding to the 97.5th percentile and then convert it back to the original SAT score scale.
First, let's calculate the z-score using the formula:
z = (x - μ) / σ
where x is the SAT score, μ is the mean (1175), and σ is the standard deviation (120).
To find the z-score corresponding to the 97.5th percentile, we need to find the z-score value that leaves 2.5% in the tail of the distribution (to the right).
Using a standard normal distribution table or a statistical calculator, we find that the z-score corresponding to the 97.5th percentile is approximately 1.96.
Now we can solve for x (the SAT score) in the z-score formula:
1.96 = (x - 1175) / 120
Multiply both sides by 120:
1.96 * 120 = x - 1175
235.2 = x - 1175
Add 1175 to both sides:
235.2 + 1175 = x
1410.2 = x
Therefore, the minimum score of the top 2.5% of students is approximately 1410.
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assume you have two six-sided dice, each with faces numbered 1 to 6. you sum the values of the two dice after a roll. what is the probability that the sum is 4? leave your answer as a fraction a/b without simplifying or converting to a decimal equivalent.
The probability is 3/36.To determine the probability of getting a sum of 4 when rolling two six-sided dice, we need to count the number of favorable outcomes .
Divide it by the total number of possible outcomes. There are three ways to achieve a sum of 4: (1, 3), (2, 2), and (3, 1). Each outcome represents a different combination of the numbers rolled on each die. Now, let's consider the total number of possible outcomes. Since each die has 6 sides, there are 6 possible outcomes for each die. Multiplying these together, we get a total of 6 * 6 = 36 possible outcomes when rolling two dice.
Therefore, the probability of getting a sum of 4 is 3/36, which can be simplified further, but as per the given instruction, we leave the answer as a fraction a/b without simplifying or converting to a decimal equivalent. Thus, the probability is 3/36.
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suppose f : rn → rm is a linear map. what is the derivative of f ?
If f: rn → rm is a linear map, then its derivative is simply the map itself. This is because a linear map is a function that preserves vector addition and scalar multiplication.
In other words, if we take two vectors in the domain and add them together, and then apply the linear map, it is the same as applying the linear map to each vector separately and then adding the results. Similarly, if we multiply a vector in the domain by a scalar and then apply the linear map, it is the same as multiplying the result of applying the linear map to the original vector by the same scalar.
Formally, we can express this idea using the concept of a Jacobian matrix. The Jacobian matrix of a function describes the rate at which the function changes near a particular point. For a linear map, the Jacobian matrix is simply the matrix that represents the map. This means that the derivative of f is the matrix A such that f(x) = Ax for all x in rn.
To see why this makes sense, consider the simplest case of a linear map from R1 to R1, given by f(x) = ax, where a is a constant. The derivative of this function is f'(x) = a, which is just the constant coefficient of the linear map. More generally, the derivative of a linear map f: rn → rm is the matrix A such that f(x) = Ax for all x in rn.
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15 yards to 18 yards
Answer: The distance between 15 yards to 18 yards is 3 yards.
Step-by-step explanation:
Write and solve a real-world problem that can be modeled by the division expression 8/12 ÷ 9/12. Identify what the dividend, divisor, and quotient represent in your problem. Show your work.
Answer:
exchange 9 with 12
simplyfy both til 1/2*4/3
2/3 finally
A cube and a square pyramid were joined to form the composite solid. A cube with side lengths of 12 inches. A square pyramid with triangular sides with a height of 9 inches. What is the total surface area of the composite solid? 792 square inches 936 square inches 1,080 square inches 1,152 square inches P.S. Yes, I know 100 points, i'm pretty generous, lol
Answer:
total surface area = 936 in²
Step-by-step explanation:
total surface area = surface area of the pyramid + surface area of the cube
1. surface area of the pyramid = 4 * area of lateral triangle side
area of lateral triangle side = 12 * 9 /
area of lateral triangle side = 54 in²
2. surface area of the pyramid = 4 * 54
surface area of the pyramid = 216 in²
3. surface area of the cube = 5 * (12 x 12)
-surface area of the cube = 720 in²
therefore, the total surface area = 216 in² + 720 in²
total surface area = 936 in²
Answer:
C
Step-by-step explanation:
Please refer to the given picture (sorry, it's a rather bad drawing.)
Anyways, we know that the cube has side lengths of 12. Since the figure is a cube, all the side lengths are 12. Let's find the surface area of the cube first.
The cube has six faces. However, we only need to do five faces because one of the faces is the face that connects the cube to the pyramid. Because of this, we won't count it towards the surface area. Therefore, the total surface area of the cube would be:
\(5(bh)\)
The bh represents the area of one face. The five multiplies that amount by five, giving us the surface area of the cube. Plug in 12 for the base and 12 for the height:
\(5(12)(12)=5(144)=720\)
Therefore, the surface area of the cube (excluding one face) is 720 square inches.
Now, find the surface area of the square pyramid. The square pyramid is composed of four congruent triangles and one square base. Again, since the square base is connecting it to the cube, we won't count it. So, we only need to find the area of the four triangles and then add it to 720.
We are given that the height of the pyramid is 9. The base of all four triangles is 12 (since the side length of the cube is 12). However, to find the area, we first need to use the Pythagorean Theorem to determine x or the actual height of one of the triangles. We won't use 9 as the height because the 9 doesn't represent the height of the triangle, but rather of the pyramid. x is essentially the hypotenuse here. Thus:
Pythagorean Theorem:
\(a^2+b^2=c^2\)
Plug in 9 for a, 12 for b, and x for c:
\(9^2+12^2=x^2\\x^2=81+144=225\\x=\sqrt{225}=15\)
Therefore, the height of the triangles is 15. Now, we can use the area formula for triangles:
\(A=\frac{1}{2} bh\)
The base is 12 and the height is 15. Thus:
\(A=\frac{1}{2}(12)(15)=6(15)=90\)
And there are four of them, so the total surface area is:
\(4(90)=360\)
Therefore, the total surface area of the composite figure (excluding the one face) is:
\((720+360)=1080\text{ in}^2\)
A computer vauled at $30,000 is depreciated to $0 value over a 6 year period. find the rate of change in the computer's value per year.
Answer:
$5000 per year
Step-by-step explanation:
Given data
initial value of the computer= $30000
Final value = $0
Duration= 6years
Hence the rate of change in the value per year is
=30000/6
=$5000 per year
En la función de la imagen la ecuación de la asíntota vertical es___
The equation for the asymptote of the graphed function is x = 7
How to identify the asymptote?The asymptote is a endlessly tendency to a given value. A vertical one is a tendency to infinity.
Here we can see that there is a vertical asymoptote, notice that in one end the function tends to positive infinity and in the other it tends to negative infinity.
The equation of the line where the asymptote is, is:
x = 7
So that is the answer.
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Shelly has a plan to save $500 for a trip that is 8 weeks away. She already has $50 in her
account. How much will she need to save weekly to meet her goal?
Answer:
She will still need about 450$
Step-by-step explanation:
So from what I have learned, she will need to work in order to get the money, but even when she is working, she may have expenses to pay and she may not make it, but she will because she can do loans and when she earns the money from loans, then she can pay, then she may have left over money she can use while on trip.
Question "B" is written below. Answer all questions and make answer clear please
(b) If the researcher decides to test this hypothesis at the a = 0.01 level of significance, determine the critical values.
we can conclude that a or b, or both must be negative, which means their product can't be zero. Hence, Z is an integral domain
Given hypothesis, H0 : µ = 200, H1 : µ ≠ 200The level of significance is a = 0.01, so α = 0.01.The two-tailed test is used to test the hypothesis.
Therefore, the area in each tail is 0.01/2 = 0.005.Looking up the z-table or using a calculator, the critical values for a two-tailed test at a 0.005 level of significance are -2.576 and 2.576.Thus, the critical values for the hypothesis test are -2.576 and 2.576.An integral domain is a non-zero ring in which the product of any two non-zero elements is also non-zero, that is, there are no divisors of zero.
Therefore, we can conclude that a or b, or both must be negative, which means their product can't be zero. Hence, Z is an integral domain. Proof that (Z5, ⊕, ⊗) is an integral domain: Let a,b ∈ Z5 and a ⊗ b = 0. This implies that either a = 0 or b = 0 or both are zero. Hence, we need to show that if a,b ≠ 0, then a ⊗ b ≠ 0.If a ⊗ b = 0, then a × b ≡ 0 (mod 5) and hence 5 divides a × b. But 5 is a prime number, and a or b or both should be divisible by 5. It implies that a ⊗ b ≠ 0. Therefore, Z5 is an integral domain.
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Please help me I don't get it 7 1/5−(−3/5)
Answer:
39/5
Step-by-step explanation:
if a1 = 4 and an = -4a n-1 +5 then find value of a5
please help
Answer:
Step-by-step explanation:
a1 = 4
a2 = -5(4)-1 = -21
a3 =-5(-21)-1 = 104
a4 = -5(104)-1 =-521
a5 =-5(-521)-1 = 2604
Jenny's art classes cost her $27 per session in addition to a registration fee of $336. Ricky's art classes cost him a registration fee of $288 plus $35 per session. How many sessions would Jenny and Ricky each have to attend for the amount of money they spend on their art classes to be equal?
Jenny and Ricky each need to attend 6-sessions for the amount of money they spend on their art-classes to be equal.
Let number of sessions that Jenny and Ricky each have to attend be = "x",
We know that,
⇒ Jenny's art class cost-per-session = $27,
⇒ Jenny's registration fee = $336,
⇒ Ricky's art class cost per session = $35,
⇒ Ricky's registration-fee = $288,
We have to find number of sessions "x" at which total amount of money they spend on their art classes will be equal.
For Jenny:
⇒ Total cost of art classes = (Cost per session) × (Number of sessions) + (Registration fee),
So, Total cost for Jenny = 27x + 336,
For Ricky:
⇒ Total cost of art classes = (Cost per session) × (Number of sessions) + (Registration fee),
So, Total cost for Ricky = 35x + 288,
Equating the two expressions equal to each other,
We get,
⇒ 27x + 336 = 35x + 288,
⇒ 336 = 35x - 27x + 288,
⇒ 336 = 8x + 288,
⇒ 336 - 288 = 8x,
⇒ 48 = 8x,
⇒ 6 = x
Therefore, the number of required art classes are 6 sessions.
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Solve the triangle. Round each angle to the nearest degree and round each side to the nearest hundredth. Do not use rounded answers In Your calculations to find missing measures
Rounded answers In Your calculations to find missing measures is given below.
Given: a = 8.72, b = 11.1, c = 11.7
Using the Law of Cosines, we can calculate angle A:
A = arccos((b2 + c2 - a2)/2bc)
A = arccos((11.12 + 11.72 - 8.722)/(2*11.1*11.7))
A = arccos(2.61/265.57)
A = arccos(0.00984)
A = 89.8°
Using the Law of Sines, we can calculate angle B:
Using the Law of Cosines, we can calculate side c:
c2 = a2 + b2 - 2abcos(C)
c2 = 8.722 + 11.12
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