Answer:
0.529
Step-by-step explanation:
1) Use the algorithm method.
2 . 3
+ 0 . 2 3
---------------------------
0 . 0 6 9
0 . 4 6 0
-----------------------------
1
0. 5 2 9
2) Therefore, 2.3 × 0.23 = 0.529.
0.529
In 13 liters of 18% salty solution we add 402g of salt. What is the concentration of the new mixture?
9514 1404 393
Answer:
21.1%
Step-by-step explanation:
Adding 402 g of salt to a solution whose volume is 130 × 100 mL will increase the concentration by (402/130)%, or about 3.09%.
When the concentration of 18% has 3.09% added to it, the concentration of the new mixture is about 21.1%.
_____
Additional comment
We understand the units of concentration used here to be (1 g)/(100 mL) = 1%. These units are often used for a solution with a dissolved solid.
Given deductions for this week: Federal Tax $61.34, FICA $52.05, and State $7.92 What is the annual Federal Tax deduction? $6,308.12 $3,189.68 $3,152.06 $1,594.84
The annual Federal Tax deduction is $ 3,189.68.
Given that the deductions for the week were: Federal Tax $ 61.34, FICA $ 52.05, and State $ 7.92; To determine what is the annual Federal Tax deduction, the following calculation must be performed:
Federal Tax deduction x number of weeks per year = X $ 61.34 x 52 = X $3,189.68 = X
Therefore, the annual Federal Tax deduction is $ 3,189.68.
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Which of the following relations represents a function?
a. { (-1,-1), (0,0), (2,2), (5,5) }
b. None of these
c. { (0,3), (0,-3), (-3,0), (3,0) }
d. { (-2,4), (-1,0), (-2,0), (2,6) }
Need helppppppppppppppppp
Answer: 165.618 its c
Step-by-step explanation: 153.35 + 8% = 165.618 so its most likely c
For the function, find the point(s) on the graph at which the tangent line has slope 2.
y=-0.025x^2 +4x
If y = -0.025x^2 + 4x, then
y' = -0.05x + 4
Set y' = 2:
2 = -0.05x + 4
-2 = -0.05x
40 = x
Go back to y to find the point:
y = -0.025(40)^2 + 4(40) = 120
So the point (40, 120) on y = -0.025x^2 + 4x will have tangent line with a slope of 2.
Un grupo de estudiantes tiene como proyecto final determinar el grado de aceptación de las amas de casa de cierto sector de la ciudad hacia un nuevo detergente. De los resultados obtenidos se pudo establecer que aproximadamente 95% de las amas de casa prefieren un detergente en presentación de 500 gramos, contra el mismo producto, pero en una presentación de 1500 gramos. Se lleva a cabo un sondeo sobre la predilección del tipo de presentación del detergente entre 20 amas de casa seleccionadas al azar y donde las respuestas dadas son independientes. Si los estudiantes están interesados en calcular la probabilidad de que exactamente 5 de las amas de casa prefieran la presentación de 1500 gramos, el valor que obtienen es
Usando la distribución binomial, se encuentra que hay una probabilidad de 0.0022 = 0.22% que exactamente 5 de las amas de casa prefieran la presentación de 1500 gramos.
Para cada estudiante, solo hay dos resultados posibles. O prefieren la presentación de 500 gramos, o prefieren la de 1500 gramos. La decisión de cada estudiante es independiente de otros estudiantes, o que implica que se usa la distribuición binomial.
Distribuición binomial.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
Los parámetros son :
n es el número de ensayos. x es la probabilidad de éxito en una sola prueba. p es la probabilidad de éxito en un solo ensayo.
En este problema:
20 amas de casa, o sea, [tex]n = 20[/tex].5% prefieren lo detergente de 1500 gramos, o sea, [tex]p = 0.05[/tex].La probabilidad de exactamente 5 es P(X = 5).[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 5) = C_{20,5}.(0.05)^{5}.(0.95)^{15} = 0.0022[/tex]
Probabilidad de 0.0022 = 0.22% que exactamente 5 de las amas de casa prefieran la presentación de 1500 gramos.
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M<1=
I need help please
Answer:
We draw a number line 0.4 to 1.6 showing at least 5 values of decimal to =1
This way 1 can be centralised in such number line to compare scale from 1.
Here attached shows 6 values 0.4 to 1.6
The open circle is 1 and the arrow is M showing its direction and value.
A total of 511 tickets were sold for the school play. They were either adult tickets or student tickets. There were more student tickets sold than adult tickets. How many adult tickets were sold?
Answer:
less than 256
Step-by-step explanation:
Rule of 3. They were more than 50% of the tickets that were for students.
511*50/100 = 255,5
That means that less than 256 tickets were adult tikets
what is -1/2(7z+4)+1/5(5z-16)
Answer:
[tex] - \frac{1}{10} \times (25z + 52)[/tex]
Step-by-step explanation:
-1/2 (7z + 4) + 1/5 (5z - 16)
-1/10 × (5(7z + 4) - 2 (5z - 16))
-1/10 × (35z + 20 - 10z + 32)
= -1/10 × (25z + 52)
Find the range of the following data: 181, 191, 171, 111, 121, 131, 141, 151, 161
Answer:
The range is 80.
Step-by-step explanation:
You just find the biggest and the smallest number and find the difference between the biggest and the smallest number. In this case, 191-111 is 80.
Put these numbers in order from greatest to least. 16/25, 4/16, -8, -11/20
Given: ΔABC, CM⊥AB, BC = 5, AB = 7, CA = 4√2
Find: CM
Step-by-step explanation:
first finding the area of the triangle by Heron's formula.
s=(a+b+c)/2, a=BC=5 unit, b=AC= 4√2unit, c=AB=7unit.
s=(5+4√2+7)/2 = (12+4√2)/2 =2( 6+2√2 )/2 = 6+2√2 unit .
Now, the Heron's formula : √s(s-a)(s-b)(s-c)
> √ (6+2√2)[(6+2√2)-5][(6+2√2)-4√2][(6+2√2)-7]
we have use √2's value ; 1.414 to simplify.
please simplify it with the help of calculator or doin it in a copy, because it is very difficult to share the full calculation. AFTER CALCULATION,
> √196.0000 > 14(units)².
Now, we know that the area of triangle is 14(units)². and another formula of finding the area of triangle is ½(base)(height). let the height be h.
Area = ½(base)(height)
=>14= ½(7)h. (after cross multiplication)
=>(14×2)/7=h. (after cancellation)
=>2×2=h.
=> 4units = h.
Therefore, CM that is the height is 4units.
I have every time written units because the unit is not given or you have not posted if given in the question you will write that unit only like cm or m anything like that.
Find the quotient of 4 2/3 ÷ 2 2/5
[tex]4 \frac{2}{3} \div 2 \frac{2}{5} \\ = \frac{14}{3} \div \frac{12}{5} \\ = \frac{14}{3} \times \frac{5}{12} \\ = \frac{70}{36} \\ = \frac{35}{18} \\ = 1 \frac{17}{18} [/tex]
Answer:[tex]1 \frac{17}{18} [/tex]
NO LINKS PLEASE HELPwhich figure is a net for a cube
Answer:
the answer for your question is D
What is the slope of the line shown in the graph?
Answer:
-2 = 2 units down and +1 = 1 unit to the right. -2/1
Step-by-step explanation:
What does the 200 mean and how is it solved ? Thank you
When the variable is on both sides of the equation, it must be isolated on one side, and it doesn't matter which
side.
O True
O False
Answer:
The basic technique to isolate a variable is to “do something to both sides” of the equation, such as add, subtract, multiply, or divide both sides of the equation by the same number.
Question 9 of 10
This graph shows the solution to which inequality?
(3.3)
(-3,-1)
O A. y
O B. ys £x+1
O C. y> {x+1
O D. yz {x+1
SUBMIT
Answer:
C y > 2x/3 + 1
Step-by-step explanation:
Dashed line eliminates any equation option with "equal to" in it
y rises 4 units as x increases 6 units between the blue points so slope is 4/6 = 2/3
y intercept is 1
Shaded blue area is above the dashed line so "greater than" rules apply
Answer:
C
Step-by-step explanation:
One month Rita rented 3 movies and 2 video games for a total of $21 . The next month she rented 8 movies and 4 video games for a total of $49 . Find the rental cost for each movie and each video game
21+49 set it up first then add all of it together
the answer is 70
Which expression is equivalent to 8-(-8)2
O-8+8
-0-8+(-8)
O 8+(-8)
O 6-8
Answer: 6 + 8 on the picture
Step-by-step explanation:
Any positive number plus a negative automagically turns into a addition problem so 6 + 8 on the picture
Answer:
O-8+8
Step-by-step explanation:
this is the right answer trust me
How to solve and simplify to the smallest fraction
Answer:
7/12
Step-by-step explanation:
When you multiply fractions you just multiply across. 7*6 = 42 and 8*9 = 72. The both of these numbers can be divided by six so 42/6 = 7 as the numerator. 72/6 = 12 for the denominator. 7/12 is the answer.
Look for a pattern to find the value of n
34 – 16 = ?
Tens Ones
Answer:
1 ten
8 ones
Step-by-step explanation:
34 - 16 is 18. Therefore, you need 1 ten and 8 ones to make the number 18.
Determine P(X > 2).
Question 21 options:
0.17
0.83
0.59
0.24
Which one of the four random variables has the largest standard deviation?
what is 2/5 of 50 multiplying fraction
Answer:
20
Step-by-step explanation:
2/5 · 50 = 2/1 · 102/1 · 10 = 2 · 102 · 10 = 20Therefore, 2/5 of 50 is 20.
PLEASE HELP!!!!!
will mark brainliest!!!!!
Answer:
[tex]4 \times 3 = 12 \\ 5 \times 3 = 15 \\ 6 \times 3 = 18 \\ 7 \times 3 = 21 \\ \\ y = 3 \times x[/tex]
if a false statement results when the coordinates of a test point are substituted into the linear inequality, which half plane must be shaded to represent the solution of inequality?
Answer:
The half-plane opposite that in which the test point lies
Can someone help me and explain how you do this and not only give me the answer?
Answer:
25, 90
Step-by-step explanation:
5/6
6 x 5 = 30
Therefore, you must multiply 5 by 5 as well.
5 x 5 = 25
Then:
Divide 75 by 5
Multiply 15 by 6
Answer: 90
Hope this helps
Use Order of Operations to simplify.
23 - (30 - 5) +9
Options:
-
A. 0 -7
B. O 11
C. O 12
D. 092
Please help!
Answer:
A
Step-by-step explanation:
A point lies to the left of the y-axis
and below the x-axis. What can you conclude about the coordinates
of the point
The point lie in quadrant 3 and both x and y coordinates of the point will be negative.
What are trigonometric identities?Trigonometric identities are the functions that include trigonometric functions such as sine, cosine, tangents, secant, and, cot.
It is given that point lies to the left of the y-axis and below the x-axis
For an example of a point in quadrant 3 and left of the y axis and below the x axis would be (-3,-3).
Therefore, the values of tangent and cotangent will be positive, while the values of sin, cosine, cosecant, and secant will be negative if trigonometric values of triangles are used in quadrant 3.
The point lie in quadrant 3 and both x and y coordinates of the point will be negative.
Learn more about trigonometric;
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