Answer:
Following are the solution to this question:
Step-by-step explanation:
[tex]\to tellurium-131\\\\ \to T(t) =1000 \times e^{\frac{\log(2)}{25}t}[/tex]
where t = in miles
In part A:
When scientists got t=0, therefore the tellurium quantity.
[tex]\to T(t) = 1000 \times e^{0}[/tex]
[tex]= 1000 \times 1 \\\\= 1000 \ grams[/tex]
In part B:
When 1 hours = 60 min
[tex]T(t) = 1000 \times e^{\frac{\log 2}{25} \times 60} \\\\[/tex]
[tex]= 1000 \times e^{\frac{\log 2}{5} \times 12}\\\\= 1000 \times e^{0.72247199}\\\\\= 1000 \times 2.05951803\\\\=2059.51803\\\\=2059.51 \ grams[/tex]
Task Radioactive isotopes decay by emitting radiation is that :
A) The tellurium-131 were in the sample the moment the scientist received are 1000 grams.
B)The grams of tellurium-131 will remain in the sample after one hour is 2059.51.
Given :
Tellurium-131T(t)=100*[tex]e^{log2/25} t[/tex]where t = in milesPart A:
When scientists got t=0,
t=1000*[tex]e^{o}[/tex]
t=1000*1
t=1000 grams
The tellurium-131 were in the sample the moment the scientist received are 1000 grams.
Part B:
The grams of tellurium-131 will remain in the sample after one hour is :
T(t)=1000*[tex]e^{log2/25} t[/tex]T(t)=1000*[tex]e^{0.7224}[/tex]T(t)=1000*2.059T(t)= 2059.51The grams of tellurium-131 will remain in the sample after one hour is 2059.51.
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Find the inverse:
-3x+7y=14
9514 1404 393
Answer:
-3y +7x = 14
Step-by-step explanation:
The inverse relation is found by swapping the x- and y-variables. The relation that is the inverse of ...
-3x +7y = 14 . . . . given relation
is
-3y +7x = 14 . . . . inverse relation
can someone please help me with this question?
Answer:
1/2
Step-by-step explanation:
you are going from 20 to 10, meaning you have to multiply by a 1/2. This means that the scale factor is 1/2! Brainly pls!
Rotate 90 clockwise wxyz
Answer:
Rotate 90 clockwise wxyz
Step-by-step explanation:
On which number line are -9 and its opposite shown?
Answer:
Step-by-step explanation:
The answer is c.
this is because the sections on the line are counting by 3 and 3 away from -12 is -9. it's opposite is shown on the right of this line as shown to the right.
The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is 2135 miles, with a variance of 145,924. If he is correct, what is the probability that the mean of a sample of 40 cars would differ from the population mean by less than 29 miles
Answer:
0.36878
Step-by-step explanation:
Given that:
Mean number of miles (m) = 2135 miles
Variance = 145924
Sample size (n) = 40
Standard deviation (s) = √variance = √145924 = 382
probability that the mean of a sample of 40 cars would differ from the population mean by less than 29 miles
P( 2135 - 29 < z < 2135 + 29)
Z = (x - m) / s /√n
Z = [(2106 - 2135) / 382 / √40] < z < [(2164 - 2135) / 382 / √40]
Z = (- 29 / 60.399503) < z < (29 / 60.399503)
Z = - 0.4801364 < z < 0.4801364
P(Z < - 0.48) = 0.31561
P(Z < - 0.48) = 0.68439
P(- 0.480 < z < 0.480) = 0.68439 - 0.31561 = 0.36878
= 0.36878
Answer: 0.3688
Step-by-step explanation:
If you are rounding to the nearest 4 decimal places the correct answer is 0.3688
If a system of two linear equations has no solutions, which of the following statements describes the graph of the two corresponding lines in the xy-plane?
a. The lines are coinciding
b. The lines intersect at only one point
c. The lines are parallel
d. The lines are perpendicular
Explain why you picked your answer:
From the linear equation, the option that describes the graph of the two corresponding lines is C. The lines are parallel.
Based on the complete information, it should be noted that the lines are not coinciding and they don't intersect at only one point.
Rather, it can be deduced that the graph of the two corresponding lines in the xy-plane are parallel.
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How many 2 and 2/3 yard pieces of rope can be cut from a bundle that has 21 yards of rope
Answer:
21 divided by 2 and 2/3 = 11.1666667
Step-by-step explanation:
SOMEONE PLEASE HELP
help
Answer:
K1. 25 K2. 25 K3. 22.5 K4. 22
Step-by-step explanation:
im kinda confused what its asking
Find the missing y-coordinate that makes the two triangles congruent. Triangle ABC: A(8,4), B(2,6), C(5, 0) Triangle MNO: M(7,4), N(1,2), O(4, y)
Answer:
y = 8
Step-by-step explanation:
Two triangles are said to be congruent if all the three sides and three angles of both triangles are equal.
The distance between two points on the coordinate plane is given as:
[tex]Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\[/tex]
In triangle ABC:
[tex]|AB|=\sqrt{(2-8)^2+(6-4^2)}=\sqrt{40} =2\sqrt{10}\\\\|AC|=\sqrt{(5-8)^2+(0-4)^2}=5\\\\|BC|=\sqrt{(5-2)^2+(0-6)^2 }=\sqrt{45}[/tex]
In triangle MNO:
[tex]|MN|=\sqrt{(1-7)^2+(2-4^2)}=\sqrt{40} =2\sqrt{10}\\\\|MO|=\sqrt{(4-7)^2+(y-4)^2}\\\\|NO|=\sqrt{(4-1)^2+(y-2)^2 }[/tex]
Since triangle ABC and triangle MNO are congruent, hence:
|AB| = |MN| = 2√10, |AC| = |MO| = 5, |BC| = |NO| = √45
[tex]|AC|=|MO|=5\\\\\sqrt{(4-7)^2+(y-4)^2}=5\\\\(4-7)^2+(y-4)^2=25\\\\9 +(y-4)^2=25\\\\(y-4)^2=16\\\\square\ root\ of\ both\ sides:\\\\y-4=4\\\\y=4+4\\\\y=8[/tex]
Hence O = (4, 8)
Solve for the value of m.
38°
(8m+4)°
Answer:
m = 6
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Equality PropertiesCombining Like TermsGeometry
Complementary Angles - Angles that add up to 90°Step-by-step explanation:
Step 1: Set Up Equation
The 2 angles must add up to 90°.
(8m + 4)° + 38° = 90°
Step 2: Solve for m
Combine like terms: 8m + 42 = 90Isolate m term: 8m = 48Isolate m: m = 6help meee if answer correctly I will follow you and make you brilliant
Answer:
a = 2; b = -1; and c = 3
Step-by-step explanation:
Please see attached image for the step by step answer
Completely factor this quadratic expression: 4x2 + 12x − 72.
Answer:
4(x-3)(x+6)
Step-by-step explanation:
Answer:
Have a great rest of your day :)
Step-by-step explanation:
Compute the multifactor productivity measure for each of the weeks shown for production of chocolate bars. What do the productivity figures suggest? Assume 40-hour weeks and an hourly wage of $12. Overhead is 1.5 times weekly labor cost. Material cost is $6 per pound.Week Output (units) Workers Material (lbs)1 30,000 6 4502 33,600 7 4703 32,200 7 4604 35,400 8 480
Answer:
Week 1 =3.03
Week 2 =2.99
Week 3=2.9
Week 4=2.83
Step-by-step explanation:
Computation for the multifactor productivity measure for each of the weeks shown for production of chocolate bars.
Using this formula
Week Multifactor productivity measure = (Output / Total Cost)
Where:
Output represent Quantity produced
Total cost represent Labor cost + Material cost + Overhead
Let plug in the formula
Week 1= 30,000/(40*12*6)+[(40*12*6)1.5]+(450*6)
Week 1 =30,000/(2,880)+(2,880*1.5)+2,700
Week 1 =30,000/(2,880+4,320+2,700)
Week 1=30,000/9,900
Week 1 =3.03
Week 2= 33,600/(40*12*7)+[(40*12*7)1.5]+(470*6)
Week 2 =33,600/(3,360)+(3,360*1.5)+2,820
Week 2=33,600/(3,360+5,040+2,820)
Week 2=33,600/11,220
Week 2 =2.99
Week 3= 32,200/(40*12*7)+[(40*12*7)1.5]+(460*6)
Week 3 =32,200/(3,360)+(3,360*1.5)+2,760
Week 3=32,200/(3,360+5,040+2,760)
Week 3=32,200/11,160
Week 3=2.9
Week 4= 35,400/(40*12*8)+[(40*12*8)1.5]+(480*6)
Week 4 =35,400/(3,840)+(3,840*1.5)+2,880
Week 4=35,400/(3,840+5,760+2,880)
Week 4=35,400/12,480
Week 4=2.83
Therefore the multifactor productivity measure for each of the weeks shown for production of chocolate bars is :
Week 1 =3.03
Week 2 =2.99
Week 3=2.9
Week 4=2.83
The width of a rectangular room is 3 feet shorter than it is long. If the perimeter of the room is 42 feet, what is the width of the room? Show work
Answer:
Should be 9 feet.
Step-by-step explanation:
Well I just set up the equation 2x + 2(x-3) = 42 Then solved x and subtracted x by 9.
Answer:
9 feetStep-by-step explanation:
Let width be w and length be l
Then we have equations below:
w = l - 32(w + l) = 42Substitute l = w + 3 in the second equation and solve for w:
w + l = 21w + w + 3 = 212w = 21 - 32w = 18w = 18/2w = 9 feetf ( x ) = - x^3 + 3x^2 + 4x - 5
answear ?
Answer:
There are no like terms.
Step-by-step explanation:
Are 4x, 4y, and 4xy like terms?
In algebra, like terms are terms that have the same combination of variables raised to the same powers. Let's determine whether 4x, 4y, and 4xy are like terms.
The term 4x consists of the variable x raised to the power of 1, while the term 4y contains the variable y raised to the power of 1. Thus, both 4x and 4y have the same combination of variables raised to the same power. Therefore, they can be considered like terms. On the other hand, the term 4xy consists of both the variables x and y, each raised to the power of 1.
Although it includes both x and y, the arrangement of the variables is different from the previous terms. This means that 4xy is not a like term to either 4x or 4y. In conclusion, among the given terms, 4x and 4y are like terms, while 4xy is not. It is important to identify like terms in algebra to simplify expressions and combine similar terms for easier calculations.
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There are six wires which need to be attached to a circuit board. A robotic device will attach the wires. The wires can be attached in any order, and the production manager wishes to determine which order would be fastest for the robot to use. Use the multiplication rule of counting to determine the number of possible sequences of assembly that must be tested. (Hint: There are six choices for the first wire, five for the second wire, four for the third wire, etc.)
Answer:
[tex]S=720[/tex]
Step-by-step explanation:
From the question we are told that
Six wire are attached to a circuit board
Generally using multiplication rule
Let number of possible sequence be given as S
Mathematically
[tex]S=6! =6*5*4*3*2*1=720[/tex]
Therefore
Number of possible sequence [tex]S=720[/tex]
expand and simplify 2(5x+4)+3(2x+1)
pls help me
Step-by-step explanation:
2(5x + 4) + 3(2x + 1)
= 10x + 8 + 6x + 3
= 16x + 11.
Kevin works at a restaurant. He stacks glasses as shown below. Let x be the number of glasses and f(x) be the height of the stack. If 5.5-inch glasses with 1.2-inch lips are stacked vertically, which table correctly models this situation?
Answer:
[tex]f(x) = 5.5x + 1.2 \\ \: is \: the \: required \: situation.[/tex]
As per the given condition f(x) = 5.5x +1.2 inch will be the required model.
What is function?" A function is a mathematical expression to represent the relation between one or more variable."
According to the question,
x represents the number of glasses
f(x) represents the height of the stack
height of the glass = 5.5inch
stack vertically with height = 1.2 inch
Therefore,
Required model
f(x) = 5.5x +1.2
Hence, f(x) = 5.5x +1.2 inch will be the required model.
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4,509/10,000 as a decimal number.
Step-by-step explanation:
When dividing by 10,000, shift the decimal place 4 places to the left.
4509 => 0.4509
4,509/10,000 = 0.4509.
4,509/10,000 as a decimal number is 0.4509.
What are decimal numbers?Decimals are used to write a number that is not whole.
Given a fraction, 4,509/10,000
Dividing by 10,000, shift the decimal place 4 places to the left.
Therefore, 4,509/10,000 = 0.4509.
Hence, 4,509/10,000 as a decimal number is 0.4509.
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3/8-1/3
I rly need help and FAST
Answer:
Step-by-step explanation:
1/24
⚠️PLEASE HELP!!⚠️
find the measures of the angles labeled in the figure below.
measure angle EFD
measure angle EHF
measure angle HFG
measure angle G
Answer:
Angle EFG= 90
Angle EHF= 130
Angle HFG=56
Angle G =74
Answer:
angle EFD = 90
angle HFG=56
angle EHF= 29
angle G=73
Step-by-step explanation:
angle EHF=180-51=29
In triangle FGH :
angle FHG = 51 (given)
angle HFG= 90-34= 56( angle EFG given 90)
angle HGF= 180-(51+56) (anglesome prop)
angle G=180-107=73
helpppppppppppppppppp
Answer:
0
Step-by-step explanation:
(2m)/(2m+3)-(2m)/(2m-3)=1
Simplifying the left hand first
(2m)/(2m+3)-(2m)/(2m-3) = {2m(2m-3) - 2m(2m+3)}/(4m²-9)
(4m²-6m-4m²-6m)/(4m²-9) = (-12m) / (4m²-9)
Now this equates to 1
(-12m) / (4m²-9) = 1
-12m = 4m²-9
4m²+ 12m -9 =0 ⇒⇒⇒ This is a quadratic equation that has 2 real solutions.
4m²+ 12m -9 =0
m² + 3m + (3/2)²= 9/4 + 9/4
(m + 3/2)² = 18/4
m = √18/2 - 3/2 or m = -√18/2 - 3/ = 0.621 = -3.621
So we can say that the equation has NO extraneous solutions.
Answer = 0
(I'm pretty sure it's correct)
(SAT Prep) Find the value of x
X=25°
................
If y =- 5x + 3, find the value of x when y = 13.
Answer:
x=2
Step-by-step explanation:
You would first subsitute the y with 13. The you would subtract 3 from 3 and 13. Then you would have 10=5x. Then you would divide 5 by 5 and 10. You will get x = 2
:)
translate the sentence into an equation
Eight times the sum of a number and 6 is 9.
use the variable w for the unknown number
Answer:
8(w+6)=9
You must add parentheses to show the order in which you will complete the problem. Because it says “eight times the sum of a number and 6” you have to find the sum first, then multiply 8.
Which value from the set (5,7,9,11,13) make inequality w-4<8 true?
Answer:
5,7,9,11
Step-by-step explanation:
convert 1.97 kJ to calories
Answer:
0.4708413 is the answer
Chuck has a gross pay of $815.70. By how much will Chuck’s gross pay be reduced if he has the following items withheld? federal tax of $56 Social Security tax that is 6.2% of his gross pay Medicare tax that is 1.45% of his gross pay state tax that is 19% of his federal tax a. $73.04 b. $129.04 c. $235.51 d. $273.38 Please select the best answer from the choices provided A B C D
Answer:
B $129.04
Step-by-step explanation:
Just took the exam on edgu
Answer:
B
Step-by-step explanation:
Solve and check: x + 10 + 4x + 90 = 180
Answer:
40
Step-by-step explanation: