Answer: C.156
Step-by-step explanation:
Given: Total seashells = 160
mean = 120
population standard deviation = 26 grams
The probability that the seashells weigh at least 68 grams :-'
[tex]P(X\geq68) =P(\dfrac{x-\mu}{\sigma}\geq\dfrac{68-120}{26})\\\\=P(z\geq-2)\\\\=P(z<2)\ \ \ [P(Z\geq-z)=P(Z<z)]\\\\= 0.9772\ \ \ [\text{By p-value table}][/tex]
Total seashells weigh at least 68 grams = 0.9772 x 160 = 156.352≈ 156
Hence, the correct option is C.156
Answer:
156/C
Step-by-step explanation:
#platolivesmatter
!!!!!!!!!!!!!!!!!!!!!!!!Simplify, please. x^2+x−12/x−2/3x^2+11x−4/x^2−4
Answer:
x^2+3x+2/x^2-x-2
Step-by-step explanation:
That should simplify it
Answer:
(x² - x - 6) / (3x - 1)Step-by-step explanation:
See steps of simplification below:
(x² + x − 12) / (x − 2) ÷ (3x² + 11x − 4) / (x² − 4) =(x² + x − 12) / (x − 2) × (x² − 4) / (3x² + 11x − 4) =(x - 3)(x + 4) / (x - 2) × (x + 2)(x - 2) /(3x - 1)(x + 4) =(x - 3)(x + 2) / (3x - 1) =(x² - x - 6) / (3x - 1)help now plsssssssss!!!
Answer:
5
Step-by-step explanation:
Descefdsvxerdazdxsazd4r
Translate this verbal expression to an algebraic expression.
Two times the sum of x and 10.
A 2(x - 10)
B 2x + 10
C 2(x + 10)
D 2 + x + 10
Answer:
C.
Step-by-step explanation:
It's c because you need the sum of x and 10 but both multiplied by 2. So it wouldn't be A nor B because they are both subtracting. That would leave you with C and D and d doesn't have anything to do with multiplying. I dunno made sense to me.
please help :) worth 10 points
Answer:
a. (0,3)
b. (-4,-3)
c. (-2,0)
d. (-1 1/3, 1)
e. (4,9)
f. (-3 1/3, -2)
Step-by-step explanation:
out of 50 flags, 35 are triangular and of the remaining 15 some are rectangular and some are pentagonal. Satish chooses one flag randomly from all 50. Estimate the highest probability is that he picks which flag
Answer:
triangular
Step-by-step explanation:
triangular flags have a probability of 35/50, so it's the highest.
Let f(x) be an exponential functionWhich transformations to the graph of f(x) would describe e - f(x - 3) ?
Look at the graph below carefully
Observe the results of shifting ={2}^{x}f(x)=2x
vertically:
The domain, (−∞,∞) remains unchanged.
When the function is shifted up 3 units to ={2}^{x}+3g(x)=2x +3:
The y-intercept shifts up 3 units to (0,4).
The asymptote shifts up 3 units to y=3y=3.
The range becomes (3,∞).
When the function is shifted down 3 units to ={2}^{x}-3h(x)=2 x −3:
The y-intercept shifts down 3 units to (0,−2).
The asymptote also shifts down 3 units to y=-3y=−3.
The range becomes (−3,∞).
9514 1404 393
Answer:
reflection over the x-axistranslation up 'e' units and right 3 unitsStep-by-step explanation:
The transformation ...
g(x) = a×f(x-h) +k
performs a vertical stretch by the factor 'a', and a translation by (h, k), which is h units right and k units up. When 'a' is negative, there is a reflection over the x-axis.
Here, we have 'a' = -1, h = 3, k = 'e'. So, the graph of f(x) has been ...
reflected over the x-axis
translated right by 3 units
translated up by 'e' units
__
Additional comment
We don't know if your 'e' is a typo. When talking about exponential functions, 'e' often refers to the base of natural logarithms, an irrational number approximately equal to 2.718281828459045...
Here's a graph of an exponential function transformed as you have indicated.
[Image 1 apple 3 oranges for each of 5 steps on the slider]
Apples are __% of the total number of fruits.
Answer:
Aplles are 25%.
Step-by-step explanation:
Write an equation of the line passing through the point (1,5) that is parallel to the line y= -3x+5
Answer:
y=-3x+8
Step-by-step explanation:
y=mx+5, m=-3, x=1, y=5
5=(-3)(1)+b
5=-3+b
8=b
Which of the following represents a function? OA X -5-1 9 8 -1 y 1 7 23 17 1 B. y NS x -4 NO 4 C. {(0,1),(3,2), (-8,3), (-7,2), (3,4)} D. -4 5 9 3 13
Given:
The different relations in the options.
To find:
The relation which represents a function.
Solution:
A relation is called a function if there exist a unique output (y-value) for each input (x-value).
In option A, there exist two outputs y=7 and y=1 for a single input x=-1. So, this is not a function.
In option B, there exist two outputs y=-5 and y=2 for a single input x=-1. So, this is not a function.
In option C, there exist two outputs y=2 and y=4 for a single input x=3. So, this is not a function.
In option D, there exist only one value of y for each x. So, this is a function.
Therefore, the correct option is D.
Answer:
D
Step-by-step explanation:
you probalby just want the answer
A number increased by five is negative fifteen. What is the number?
Answer:
The value of the number is: n = -20
Step-by-step explanation:
Given
A number increased by five is negative fifteen.
To determine
What is the number?
Let 'n' be the unknown number.
''A number increased by five'' means we have to add 5 to the number.
i.e.
n+5
Also, it is stated that a number increased by five is negative fifteen.
Thus,
[tex]n+5=-15[/tex]solving for n
[tex]n+5=-15[/tex]
Subtract 5 from both sides
[tex]n+5-5=-15-5[/tex]
Simplify
[tex]n=-20[/tex]
Therefore, the value of the number is: n = -20
Can someone help me with this please?
If AUVW - ARST, what is the value of x?
Enter your answer in the box.
V
30
W
S
X
T
42
21
U
IR
X=
1
Answer: 15
Step-by-step explanation:
[tex]\dfrac{ST}{VW} =\dfrac{SR}{VU} \\\\ST=21\\VW=30\\SR=21\\VU=42\\\\\dfrac{x}{30} =\dfrac{21}{42} \\\\x \times 42=21 \times 30\\x \times 42=630\\x \times 42 \div 42=630 \div 42\\x=15[/tex]
The Current Population Survey conducted by the Census Bureau records the incomes of a large sample of U.S. households each month. What will be the relationship between the mean and median of the collected data
Explanation:
There are 3 possible cases that describe the relationship between the mean and median of the collected data.
First case:
If the distribution is symmetric then, mean = median.
Second case:
For the positively skewed frequency distribution, the mean is greater than the median.
Third case:
For the negatively skewed frequency distribution mean is less than the median.
Mrs. Rodriguez has a blueprint of her new house. The actual living room has a width of 20 feet and a length of 24 feet. If the scale used to make the blueprint is 12 inch = 4 feet, what is the length of the living room on the blueprint?
Order the following measures from least to greatest: 0.5 m, 30 in., 1.25 ft, 17 cm
Answer:
30 in, .5 m , 1.25 ft, 17 cm
Step-by-step explanation:
Answer:
17cm, 1.25 ft, 0.5 m, 30 inches
Step-by-step explanation:
I converted all of them to meters before deciding which one was least and which one was greatest.
Sandy baked 4 1/2 pounds of cookies. She divided the cookies equally among two friends and herself. How many cookies did each person get?
Answer:
Each person would get 1 1/2 pounds worth of cookies
Step-by-step explanation:
4 1/2 pounds of cookies divided equally among 3 people
4 1/2 pounds divided by 3 people = 1 1/2 pounds of cookies
Each person gets 1 1/2 pounds of cookies
–2z − 7 need this done now
Answer:
the value of the z is -3.5
Step-by-step explanation:
According to the question, the following information is given
-2z - 7
Based on the above information
We assume that we have to determine the z value
so
-2z - 7 = 0
-2z = 7
z = 7 ÷ -2
= -3.5
Hence, the value of the z is -3.5
The same is to be considered and relevant too
which pair of of expressions are equivalent? A. 10(x+4) and 10x+14 B. 3(x+5) and 3x + 5 C. x+x+x+1+1+1 and 3(x+1) D. x+x+x+x+1+1+1+1 and 8x
Answer:
C. x+x+x+1+1+1 and 3(x+1)
Step-by-step explanation:
Algebraic Expressions
Some algebraic expressions are equivalent to others if the correct operations are done on them.
A. 10(x+4) must be operated by multiplying 10 by x and 10 by 4, thus:
10(x+4) = 10x + 40.
This choice is not correct
B. 3(x+5) must be operated by multiplying 3 by x and 3 by 5, thus:
3(x+5) = 3x + 15.
This choice is not correct
C. x+x+x+1+1+1 is equivalent to an expression where like terms are collected, that is. x+x+x=3x and 1+1+1=3, thus:
x+x+x+1+1+1=3x+3=3(x+1)
This choice is correct
D. x+x+x+x+1+1+1+1 in a similar way as explained above, like terms must be correctly collected: D. x+x+x+x=4x and 1+1+1+1=4, thus
D. x+x+x+x+1+1+1+1 = 4x+4 = 4(x+1)
This choice is not correct
What is the solution to the system of equations? 2x + 3y = 26 3x + 5y = 40
Answer:
x = 10 , y = 2
Step-by-step explanation:
The solution of the system of equations will be x= 10 and y = 2.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that the system of equations is 2x + 3y = 26 and 3x + 5y = 40. the two equations by elimination method can be solved as;-
2x + 3y = 26
3x + 5y = 40
Cross-multiply with the variable of x,
6x + 9y = 78
-6x - 10y = -80
___________
-y = -2
y = 2
The value of x will be:-
2x + 3y = 26
2x + 3 ( 2 ) = 26
2x = 20
x = 10
Hence, the solution of the system of equations will be x= 10 and y = 2.
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Find missing Heights
Answer:
15 feet. 10 plus 15=25 s0 therefore it is 15
What is 7.44444444444 in fraction form
Answer:
186/25 i am pretty sure
Step-by-step explanation:
a fish is swimming at a contest rate toward the ocean floor. the equation y=-7x-3 can be used to represent to this situation where y is the depth of the fish in meters below se level. x is the number of seconds the fish has been swimming. which staTement best describes the depth of the fish given this equation.
Answer:
C
Step-by-step explanation:
y = -7x - 3 is a linear function that follow y = mx+b. M is the slope or rate. Here m = -7 so the fish descends 7 meters per second. B is the y-intercept or starting position. Here the starting position is -3 so the fish starts 3 feet below sea level.
what is equivalent to 2/3 divided by 5/6
Answer:
the answer is 4/5
Step-by-step explanation:
2/3 times the reciprocal of 6/5 and then that will give you 4/5
PLEASE HELP I DONT WANT TO FAIL
Answer:
1
Step-by-step explanation:
12/8=1.5
15/10=1.5
1.5/1.5=1
I need help with these two question help me ASAP........
PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!
Elena gets a base pay of $1,500 per month. She also earns a commission of 8% of the total sales dollars that she makes. What are Elena’s earnings for a month in which she has sales of $32,000?
Answer
4060 DollarsHere's why this is correct
and if Elena gets a base pay of $1,500 per month, then we add 8% of the total sales, ($32,000) and 8% of 32,000 is $2,560.
8% of 32,000 = 2,560
So we add $2,560 by $1,500 and we get 4060 Dollars.
Hope this helps! <3
person A buys 12 granola bars and 7 cups of yogurt for $15.50. person B buys six granola bars and 11 cups of yogurt for $11.50. find the cost of each
50 per cup. If we plug this in to each equation, you'll see that 12 granola bars equals $12, and 7 cups of yogurt equals $3.50, for a total of $15.50.
A restaurant offers hamburgers with one, two, or three patties. Let XXX represent the number of patties a randomly chosen customer orders on their hamburger. Based on previous data, here's the probability distribution of XXX along with summary statistics: X=\text{\# of patties}X=# of pattiesX, equals, start text, \#, space, o, f, space, p, a, t, t, i, e, s, end text 111 222 333 P(X)P(X)P, left parenthesis, X, right parenthesis 0.400.400, point, 40 0.500.500, point, 50 0.100.100, point, 10 Mean: \mu_X=1.7μ X =1.7mu, start subscript, X, end subscript, equals, 1, point, 7 Standard deviation: \sigma_X\approx0.67σ X ≈0.67sigma, start subscript, X, end subscript, approximately equals, 0, point, 67
Answer:
3.4$ 1.34 $
Step-by-step explanation:
Answer:
on khan academy it is ut=1.2 tickets at~3.8 ticketsStep-by-step explanation:
The variable s varies directly as the square of t. When s = 4, t = 12. Nick’s work finding the value of t when s = 48 is shown:
What is the first error, if any, in Nick’s work?
See in pic:
Answer:
C - He substituted incorrectly when calculating the constant of variation.
The first error, in Nick’s work is given inn option C, i.e. He substituted incorrectly when calculating the constant of variation.
What is constant of variation?Constant of variation is the ratio between two variables in a direct variation or the product of two variables in an inverse variation.
We have,
s = 4, and t = 12
Now according to the question,
The variable s varies directly as the square of t,
i.e.
s = kt²
So,
Substituting given values of s and t,
s = kt²
i.e.
4 = k × 12²
⇒
[tex]k = \frac{4}{144}=\frac{1}{36}[/tex],
Now,
for 48,
i.e.
s = kt²,
We get,
[tex]48 = \frac{1}{36} t^2[/tex],
i.e.
[tex]t^2=36 *48=1728[/tex]
[tex]t=\sqrt{1728} = \sqrt{3*576} =24\sqrt{3}[/tex]
So, this is the correct value for t.
Hence, we can say that the first error, in Nick’s work is given inn option C, i.e. He substituted incorrectly when calculating the constant of variation.
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PLEASE PARAHPAHAE THIS FOR ME IM IN 4 grade ITS 50 PTS / POINTS PLEAPELSPLEPELPPLEASEPLEASEPLEASE HELP ASAP THANKS SM
The mosquitos have different traits because they have different proteins for body size feature in their cells. Differences in the structure of protein molecules affect how they interact with other protein molecules. A gene version provides instructions for making a specific protein, so mosquitos with different combinations of gene versions will have different proteins in their cells that result in small, medium, or large body sizes. Each parent randomly passes on one of its two copies of a gene for a feature, which is why each mosquito offspring can have a different combination of gene versions even though they have the same parents.
Answer:
The mosquitos have different traits because they have different proteins for body size feature in their cells. Differences in the structure of protein molecules affect how they interact with other protein molecules. Genes provide rules for making particular energy, so mosquitos with different mixtures of genes will have different proteins in their cells that end up in different body sizes. Each parent randomly gives on one out of two of a gene for a characteristic, which is why each mosquito babies can have different mixtures of genes, even though they have the same parents.
Step-by-step explanation: