Based on the calculations, the chemical element (X) in this nuclear equation is equal to ²³⁵U₉₂.
What is an alpha decay?An alpha decay refers to a type of nuclear reaction in which the atomic nucleus of a radioactive element emits an alpha particle (atom of helium), thereby, producing chemical elements with a different atomic nucleus.
In this exercise, we are given the following nuclear equation with an alpha decay:
²³⁹Pu₉₄ -----> X + ⁴He₂
For the superscript, we have:
239 - 4 = 235.
For the subscript, we have:
94 - 2 = 92.
Therefore, the chemical element (X) is equal to ²³⁵U₉₂.
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Answer:
its c
Step-by-step explanation:
trust
The sum of two polynomials is –yz2 – 3z2 – 4y 4. if one of the polynomials is y – 4yz2 – 3, what is the other polynomial? –2yz2 – 4y 7 –2yz2 – 3y 1 –5yz2 3z2 – 3y 1 3yz2 – 3z2 – 5y 7
Polynomial are expression that have a leading degree of 3. The other polynomial function will be 3yz^2 – 3z^2 – 4y^4 - y + 3
Difference of polynomialsPolynomial are expression that have a leading degree of 3. Given the following expression
Sum = –yz^2 – 3z^2 – 4y^4.
One of the polynomial = y – 4yz^2 – 3
Required
The other polynomial
Let the unknown polynomial be "a" such that:
a = –yz^2 – 3z^2 – 4y^4 - (y – 4yz^2 – 3)
Expand
a = –yz^2 – 3z^2 – 4y^4 - y + 4yz^2 + 3
a = 3yz^2 – 3z^2 – 4y^4 - y + 3
Hence the other polynomial function will be 3yz^2 – 3z^2 – 4y^4 - y + 3
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Answer: D. or 3yz^2-3z^2-5y+7
Step-by-step explanation: got it right on edge
Doing some review on PEMDAS. I just need help to know if I am on the right track with this problem.
Answer:
The order in which you evaluated the expression was a bit incorrect but the outcome either way was 78. In some cases if you evaluate the expression incorrectly or not in order will result in you getting the wrong answer. If you want to see how to evaluate it correctly just look below.
Step-by-step explanation:
PEMDAS stands for
Parenthesis
Exponents
Multiplication and Division ( left to right )
Addition and Subtraction ( left to right )
And it basically tells us the order in which you are suppose to evaluate a mathematical expression.
It appears the expression you are given is 4² + ( 1 × 5 + 7² ) + 8
First we would do the operation inside of the parenthesis
so we have ( 1 × 5 + 7² )
Exponents come before multiplying and addition so first evaluate the exponent, 7² = 49
we now have ( 1 × 5 + 49 )
we next do the multiplication
( 5 + 49 )
Finally we do the addition
5 + 49 = 54.
We then replace the expression ( 1 × 5 + 7² ) with 54 as we just evaluated everything in the parenthesis
we get 4² + 54 + 8
So we just did the parenthesis and next is exponents so lets evaluate the exponents, 4² = 16
16 + 54 + 8
Next in PEMDAS is multiplication and division. There is none so we go to the next step.
We now do the addition and subtraction. ( going left to right )
16 + 54 + 8
first add 16 and 54
70 + 8
finally add 70 and 8
= 78
Notes:
For parenthesis you evaluate everything inside of the parenthesis before you remove the parenthesis
For multiplcation and division, you must evaluate in order going left to right, not doing so can result in a wrong answer.
At 6 o'clock in the morning the
temperature
was -5°C. By 4 o'clock in
the afternoon, the temperature was
16°C.
1. What was the change in
temperature?
Answer:
21 degrees
Step-by-step explanation:
Answer:
21°C
Step-by-step explanation:
If the temperature was -5° in the morning and 16° in the morning, then that means there was an increase in temperature. To find the exact change in temperature, we need to find what plus -5 would be equal to 16.
-5 + x = 16
-5+5 + x = 16+5
x = 21
From this, we can see that the change in temperature was 21°C.
hope this helps!
nine less than one forth of a number is 6
Answer:
[tex]x = 60[/tex]
Step-by-step explanation:
Step 1: Convert into an equation
Nine less than one forth of a number is 6
[tex]1/4x - 9 = 6[/tex]
Step 2: Add 9 to both sides
[tex]1/4x - 9 = 6[/tex]
[tex]1/4x - 9 + 9= 6+ 9[/tex]
[tex]1/4x = 15[/tex]
Step 3: Multiply both sides by 4
[tex]1/4x * 4 = 15 * 4[/tex]
[tex]x = 60[/tex]
Answer: [tex]x = 60[/tex]
Lucy’s age, x, 12 years from now, how old will Lucy be?
Answer:
x+12
Step-by-step explanation:
bc her age in twelve years is her age plus 12
Bill ran 10 laps around the high school track in 12 minutes how many laps can be run in 45 minutes
Answer:
37.5 laps
Step-by-step explanation:
If we assume that Bill can run at the same speed for 45 minutes, the number of laps will be proportional to the time.
laps/time = 10 laps/(12 minutes) = n laps/(45 minutes)
n laps = (10 laps)(45/12) = 37.5 laps . . . . . multiply by 45 minutes
Bill can run 37.5 laps in 45 minutes.
Use the frequency table to determine how many students received a score of 70 or better on an English exam.
PLEASE HELP QUICK AHHHH <333
Answer:
=> ( -6,-10 )Step-by-step explanation:
Given :
x = -6
-7x + 6y = -18 ... i)
Putting the value of x in equation ...i)
=> -7 (-6) + 6y = -18
=> 42 + 6y = -18
=> 6y = -18 -42
=> 6y = - 60
=> y = -60/6
=> y = -10
The value of y = -10 and x = -6
Answer:
x= 4, y=6
Step-by-step explanation:
9x-9y = -18
9x=-18+9y
x=-2+y
-6(-2+y) + 9y = 6
-12-6y+9y=6
3y=18
y=6
9x -9(6)=-18
9x-54=-16
9x=36
x=4
Find f(g(2)) simplify completely f(x)= 6x+9 g(x)=3x
Answer:
45
Explanation:
Given:
f(x)= 6x+9
g(x)=3x
Go from right to left in such function questions
⇒ f(g(2))
⇒ f(3(2))
⇒ f(6)
⇒ 6(6) +9
⇒ 36 + 9
⇒ 45
Answer:
f(g(2)) = 45
Step-by-step explanation:
f(x) = 6x + 9g(x) = 3xFinding g(2)
g(2) = 3(2)g(2) = 6Solving f(g(2))
f(g(2))f(6)f(6) = 6(6) + 9f(6) = 36 + 9f(6) = 45f(g(2)) = 45Annual snowfall (in inches):
20, 16, 20, 17.5, 19.5, 18, 23
Mean =
Median =
What is the mean and the median?
Answer:
Mean (Average) 19.142857142857
Median 19.5
Step-by-step explanation:
please give brainliest or at least 5 stars
In the equation g + h = -5 if g = 11 find the value of h.
Find the measures of the interior angles.
angle A:
°
angle B:
°
angle C:
°
Answer: search it up online
Step-by-step explanation: click new tab type it in and press search
Task 3: Complete the table.
Answer:
Consumtion:
September:7535
October:16556
November:9616
December:13615
Tama po yan
Pa branlies naman po
HOPE IT HELPS ALOT
If you are given the graph of h(x) = log6x, how could you graph m(x) = log6(X+3)?
O Translate each point of the graph of h(x) 3 units up.
O Translate each point of the graph of h(x) 3 units down.
O Translate each point of the graph of h(x) 3 units right.
O Translate each point of the graph of h(x) 3 units left.
Answer:
Translate each point of the graph of h(x) 3 units left.
Step-by-step explanation:
Translate each point of the graph of h(x) 3 units left.
you can use DESMOS
Answer:
(d) translate 3 units left
Step-by-step explanation:
The translation transformation m(x) = h(x -a) +b will translate the function h(x) right by 'a' units and up by 'b' units.
Here, you have a = -3 and b = 0. The graph of the function will be translated left 3 units.
I need HELP asp please!!!!!!!
Answer:
[tex]\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}[/tex]
we've been given a rectangular prism and the question asks us to calculate its volume.
well that's kinda easy , so let's go ahead ~
height of prism = 2 inches
breadth of prism = 10 inches
length of prism = 13 inches
Now ,
[tex]Volume \: of \: prism = l \times b \times h \\ \implies \: 13 \times 10 \times 2 \\ \implies \: 260 \: inches {}^{3} [/tex]
therefore , the first option ( C ) is correct.
hope helpful :D
Answer:
Option C, [tex]260\ in^3[/tex]
Step-by-step explanation:
Step 1: Determine the volume of the prism
[tex]V = l * w * h[/tex]
[tex]V = 13\ in * 10\ in * 2\ in[/tex]
[tex]V = 260\ in^3[/tex]
Answer: Option C, [tex]260\ in^3[/tex]
What is the equation of the line that passes through the point (-4,2) and has a slope of -1?
What is the formula for finding the slope of a line? Circle your choice.
Answer:
B
Step-by-step explanation:
to find the slope of a line you use slope intercept form
Option (b) is correct. The formula m = (y₂ - y₁)/(x₂ - x₁) is used to find the slope of the line.
What is slope of the line?In Mathematics, "a slope of a line is the change in y coordinate with respect to the change in x coordinate".
According to the question,
Equation of the line using slope intercept form is y = mx + c where 'x, y' are variable and 'm' is the slope of the line and 'c' is constant.
To find the slope of the line m = (y₂ - y₁)/(x₂ - x₁).
Hence, the option (B) m = (y₂ - y₁)/(x₂ - x₁) is correct.
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What is the perimeter, in units of a polygon with vertices located at (-7, -3), (-7, 4) , (6, -3), and (6, 4)?
Answer:
40 units
Step-by-step explanation:
-7 to 6 is 13 units and -3 to 4 is 7 units, it asks for perimeter so 13 x 2 + 7 × 2
Find the mean absolute deviation for the data set 5,6,6,8,10
Answer:
7
Step-by-step explanation:
x+7y=17 is my question.
Answer:
-1/7
Step-by-step explanation:
hope it helps:
negative 4 minus 6 is less than 50
Answer:
your question is not quite clear.
are you trying to ask ask this " Are negative 4 minus 6 less than 50 ?
if so then it can also be translated mathematically as " - 4 - 6 = 50
then the answer is YES.
Step-by-step explanation:
because - 4 - 6 is -10
- 10 is less than 50
Because in the number line
e.g -10, -9, -8 , -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, and so on...
you can see that -10 is way lesser than 50.
but if this isn't the answer you're looking for, I think you should please make the question clearer, thanks.
Hope this helps .
A cylinder has a volume of 400 cubic feet. If the height of the cylinder is 25 feet, what is the radius of the cylinder? Use 3.14 for π and round to the nearest hundredth.
Answer:
2.26 feet
Step-by-step explanation:
400/25=16
16/3.14=5.0955
5.0955^2=2.257
Solve for x. Please Help!
Answer:
x = 6
Step-by-step explanation:
If 2 chords intersect then the product of the parts of one chord is equal to the product of the parts of the other chord , that is
4x = 2 × 12 = 24 ( divide both sides by 4 )
x = 6
I will give brainliest if I get it right Lauren has 7 trophies and she wants to place 4 of the trophies on a shelf. How many possible arrangements of
the 4 trophies are there?
Using the permutation formula, it is found that there are 840 possible arrangements of the 4 trophies.
The problem says the word "arrangements", which implies that the order matters, hence the permutation formula is used to solve this question.
What is the permutation formula?The number of possible permutations of x elements from a set of n elements is given by:
[tex]P_{(n,x)} = \frac{n!}{(n-x)!}[/tex]
In this problem, 4 elements from a set of 7 are arranged, hence:
[tex]P_{7,4} = \frac{7!}{3!} = 840[/tex]
There are 840 possible arrangements of the 4 trophies.
More can be learned about the permutation formula at https://brainly.com/question/25925367
A satellite is orbiting Earth at an orbital radius of 7. 3 x 10^4m. What is its velocity in terms of G and the mass of Earth,mp?
The velocity of the satellite in orbit around Earth is approximately 73.8856 x 10³m/s.
The velocity of a satellite in orbit around Earth can be found using the formula:
v = √(G * mp / r)
where G is the gravitational constant [tex](6.67 \times 10^{-11} Nm^2/kg^2)[/tex], mp is the mass of Earth ([tex]5.97 \times 10^{24}[/tex] kg), and r is the orbital radius of the satellite ([tex]7.3 \times 10^4[/tex] m).
Substituting the given values into the formula, we get:
[tex]v = \sqrt{(6.67 * 10^{-11} * 5.97 *10^{24} /(7.3*10^4)}[/tex]
v ≈ 73.8856 x 10³ m/s
Therefore, the velocity of the satellite in orbit around Earth is approximately 73.8856 x 10³m/s.
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Jericho runs to get his ball. If he runs a distance of 8. 42 meters with a speed
of 2. 105 meter per second, how many seconds did he run?
Answer:
4 seconds
Step-by-step explanation:
The relation between time, speed, and distance is ...
time = distance/speed
__
The given measures indicate a time of ...
time = (8.42 m)/(2.105 m/s) = 4.00 s
Jericho ran for 4 seconds.
help me please it urgent i have homework anyone there
Answer:
14.9g + 9.5c
Step-by-step explanation:
g stands for $ earned training & c stands for $ earned working with customers
Anthony trained for 8.5 hours so, 8.5 hours x g $ earned at training = 8.5g
He worked with customers for 4.3 hours, so 4.3 hours x c $ earned with customers = 4.3c
Anthony's total $ earned is 8.5g + 4.3c
Madison trained for 6.4 hours so, 6.4 hours x g $ earned at training = 6.4g
She worked with customers for 5.2 hours, so 5.2 x c $ eared with customers = 5.2c
Madison's total $ earned is 6.4g + 5.2c
Anthony 8.5g + 4.3c
Madison 6.4g + 5.2c
If you add both their $ earned training, you get 14.9g
If you add both their $ earned with customers, you get 9.5c
To total what they both earn it would be 14.9g + 9.5c
Select the correct answer from the drop-down menu. the sound level, , in decibels (db), of a sound with an intensity of i is calculated in relation to the threshold of human hearing, , by this equation. the threshold of human hearing is . the sound level of a jet plane is approximately 140 db. the intensity of the sound of a jet plane is approximately .
If the sound level of a jet plane is approximately 140 db, the intensity of the sound of a jet plane is approximate 100dB
Functions and valuesThe sound level of a jet plane is expressed according tothe expression given as:
β = 10log(I/I0)
Given the folowing parameters
β = 140dB
I0 = 10^-12 W/m²
Required
Intensity "I"
Substitute
140 =10log(I/10^-12)
14 = log(I/10^-12)
10^14 = I/10^-12
I = 10^14 * 10^-12
I = 10^2
I = 100dB
Hence if the sound level of a jet plane is approximately 140 db, the intensity of the sound of a jet plane is approximate 100dB
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Answer:
100
Step-by-step explanation:
What is the value of x?
Answer: 7
Step-by-step explanation:
hi , anyone can help?
Step-by-step explanation:
AS = Asri's height
AD = Adib's height
IR = Irfan's height
AS = 2x
AD = AS - 6 = 2x - 6
IR = 2 × AS = 2 × 2x = 4x
i)
IR = 4x
ii)
IR - AS = 4x - 2x = 2x