To understand this question, we need some knowledge on radioactive decay. This type of nuclear decay is called a beta decay
Beta DecayThis is the process where a radioactive material is fired or naturally emits a beta particle which is equivalent to the lose of an electron and spontaneously becomes an entirely different element.
[tex]^6_2He \to ^6_3 Li + ^0_-_1e[/tex]
The participating actors in this nuclear reaction are
heliumlithiumelectronThis is the decay process of helium particle in which it became a lithium particle and emitted an electron in the process.
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Is (2, 2) a solution of the inequality y ≤ 3x - 5?
O (2,2) is not a solution.
O (2, 2) would be a solution if the inequality was y < 3x - 5.
• (2, 2) is a solution.
•There is not enough given information to determine this.
- - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - -- - - -- - - - - - - - - - - - - - -- -
[tex]\blue{\textsf{\textbf{\underline{\underline{Question:-}}}}[/tex]
Is (2,2) a solution of the inequality y≤3x-5?
[tex]\blue{\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}[/tex]
Simply write the y-coordinate in lieu of y and write the x-coordinate in lieu of x:-
2≤3(2)-5
Multiply:-
2≤6-5
2≤1
2 is less than 1, but it's not equal to 1.
So the right option is:-
[tex]\bigcirc\!\!\!\!\!\bigstar[/tex] (2,2) would be a solution if the inequality was y<3x-5
Good luck.- - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
8x-3y times 5x5y over 10x6y2
Answer:
8x-5/4
Step-by-step explanation:
Cancel 5y x 5y/10 x 6y²=5/12y
8x-3y 5/12y
apply fraction rule a× b/c = a×b
____
c
8x-3y⁵/12y
8x-3y×5/12y
8x-3×5/12y
8x-3×5/12
=8x-5/4
answer as soon as u can i need this
Answer:
25.12 cm.
Step-by-step explanation:
you take pie times the diameter (4)cm and times them together.
Answer:
4π cm
Step-by-step explanation:
Circumference of circled = 4 cm
Circumference = πd
= π*4
= 4π cm
Lamar pays 15.60 for a pack of 6 towels. Find the unit price in dollars per towel. If necessary, round your answer to the nearest cent.
Divide total price by quantity:
15.60 / 6 = 2.60
Unit price = $2.60
plssss i need helpp again
Answer:
4〉Shoe box is an example of rectangular prism.
5〉Classroom ↬ m²
6〉Book ↬ cm²
7〉Matchbox ↬ mm²
8〉8 cm³ = 0.000008 m³ or 8 × 10⁻⁶ m³
9〉28 m³ = 28000000 cm³ or 2.8 × 10⁷ cm³
10〉95 cm³ = 0.095 L
need help will give brainliest i am timed answer in 20 minutes
What is the y-value of the vertex of the function f(x)=−(x+8)(x−14)?
3
6
112
121
The function f(x) = –3x2 + 36x – 119 written in vertex form is f(x) = –3(x – 6)2 – 11. Which statements are true about the graph of f(x)? Select three options.
The axis of symmetry is the line x = 6.
The vertex of the graph is at (–6, –11).
The parabola has a minimum.
The parabola opens down.
The value of h, when the equation is written in vertex form, is positive.
Answer:
121
.
The axis of symmetry is the line x= 6
The parabola opens downwards.
The value of h when the equation is in vertex form is positive.
Step-by-step explanation:
In the pictures.
Hope it helps! :)
help help help help help help
Answer:
B) d=4t
Step-by-step explanation:
let's look at two points
1. t=0, d = 0
2. t = 1, d = 4
slope = change in vertical axis (d)/ change in horizontal axis (t)
change in d = 4 = d₂-d₁
change in t = 1 = t₂-t₁
slope = 4/1 = 4
vertical variable = slope * horizontal variable + horizontal axis intercept
d = 4 * t + horizontal axis intercept
horizontal axis intercept is the vertical axis variable (d) when the horizontal axis variable (t) is at 0. at t=0, d=0
thus, d = 4 * t + 0
d = 4t (B)
What is the greater rate, 22 miles in 20 minutes or 38 miles in 20 minutes? Show your work.
Answer:
the greater rate would be 38 miles in 20 minutes
Step-by-step explanation:
This is because when going 38 miles per 20 minutes, you are going 10 miles faster than 22 miles per 20 minutes
what is x in 2x − 3 + 4x = 21
Answer: x = 4
Step-by-step explanation:
2x - 3 + 4x = 21
6x - 3 = 21
6x - 3 (+3) = 21 (+3)
6x = 24
24/6
x = 4
Given the two rectangles below. Find the area of the shaded region.
7
2
4
2
Answer:
\text{ units}^2 units
2
Answer:
52 units²
Step-by-step explanation:
A = L × W
Area = Length × Width
First find the total area: 44
Half that to find the total left side that is shaded: 22
Find the bottom right side, imagine it is a seperate shape. It would be 4 × 2 = 8. 44 + 8 = 52.
- Educator
please answer
Which of the following describe financial literacy? Select all that apply.
knowledge of how money works
how much of something is available
money earned
knowledge of how to manage your own money
The correct statements about financial literacy from the given options are as follows:
Financial literacy is the knowledge about money and what you do with money.Financial literacy includes information about income, banking, loans, career, credit, and consumer rights.One reason to become financially literate is to save you money.One reason to become financially literate is to help you make smart financial decisions.The only option that isn’t included is: One reason to become financially literate is to make you rich. Though knowledge about financial literacy can help you in managing your finances, you would need great amount of knowledge about other fields to be able to become rich - not just financial literacy.
Does anybody know this? I think know the second one but I'm not sure. ABCD is a square find the following.
Answer:
see explanation
Step-by-step explanation:
in a square
• all sides are congruent
• all angles are right
• diagonals bisect the angles
• diagonals are perpendicular bisectors of each other
Then
∠ BCA = [tex]\frac{1}{2}[/tex] × ∠ BCD = [tex]\frac{1}{2}[/tex] × 90° = 45°
∠ AWD = 90°
Is the mean most useful when there is an outlier?
Answer:
The median is more useful because the mean, which his the average can be affected by a large or small outlier.
Step-by-step explanation:
Which polynomial lists the powers in descending order?
O A. 45+34-2-22+1
O
B. 3A-2+45-22+1
O C.1-22-2+45+34
© D. 4x5-22-2+3/+1
Answer:
D i believe
Step-by-step explanation: hoped this helps
SOLVE MATH TO GET 100+ PTS
The linear equation that represent the situation is 3b - 6 = 45.
The value of b is 17.
How to represent a linear equation?The situation forms a linear equation. Therefore,
y = mx + b
where
m = slopeb = y-interceptTherefore, let's model the equation linearly,
where
b = number of books boughtShe bought the book for $3 each and receive a discount of $6. The total money spent after the discount is $45.
Therefore, the equation is as follows
3b - 6 = 45
The value of b is as follows;
3b - 6 = 45
3b = 45 + 6
3b = 51
b = 51 / 3
b = 17
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Answer:
The linear equation that represent the situation is 3b - 6 = 45.
The value of b is 17.
How to represent a linear equation?
The situation forms a linear equation. Therefore,
y = mx + b
where
m = slope
b = y-intercept
Therefore, let's model the equation linearly,
where
b = number of books bought
She bought the book for $3 each and receive a discount of $6. The total money spent after the discount is $45.
Therefore, the equation is as follows
3b - 6 = 45
The value of b is as follows;
3b - 6 = 45
3b = 45 + 6
3b = 51
b = 51 / 3
b = 17
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Find the value of x that makes m ∥ n
Answer:
26
Step-by-step explanation:
When two lines are parallel, corresponding angles are equal.
Here,
m II n
5x + 13 and 143 are corresponding angles.
So,
5x + 13 = 143
Substract 13 on both sides,
5x = 143 - 13
5x = 130
Divide 5 on both sides,
x = 130 / 5
x = 26
3^5*2^-6 please answer fast
[tex]3^5 \cdot 2^{-6}=\dfrac{3^5}{2^6}=\dfrac{243}{64}[/tex]
Shelly buys some pies that cost $5.35 each and a cake that costs $17.50. Which expression can be used to find the total cost of a pies and the cake? NEED HELP QUICK
Answer:
22.95 (Addition)
Step-by-step explanation:
Add the numbers
Add $5.35 + $17.50
Answer = 22.95
How did we get it? ( Added the numbers)
Have a good day :D
which equation represents a linear function 2ry+y= 9 , y=12r-5 , 3y+r2+t=0, 4r+2(y-1)=0
The equation which represents a linear function for the variable y is y=12r-5. Option B is the correct option.
What is linear function?Linear function is the function in which the highest power of the unknown variable is one. Linear functions are used to model the real life problem in the mathematical expressions.
The linear function with dependent variable y and independent variable x can be written as,
y=mx+c
Here, m is the slope of the line represented by the function and c is the y intercept.
The equation given in the problem are,
2ry+y= 9
y=12r-5
3y+r2+t=0
4r+2(y-1)=0
The second option is similar to the standard linear function.
Hence, the equation which represents a linear function for the variable y is y=12r-5. Option B is the correct option.
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What value of x makes this equation true?
6x=3x+18
Answer:
x= 6
Step-by-step explanation:
To find the value of x that makes the equation true, first shift all the x terms to one side of the equation.
6x -3x= 18
Simplify:
3x= 18
Divide both sides by 3:
x= 18 ÷3
x= 6
[tex]\rule{50}{1}\large\blue\textsf{\textbf{\underline{Question:-}}}\rule{50}{1}[/tex]
What value of x makes the equation [tex]\large\textit{6x=3x+18}[/tex] true?
[tex]\rule{50}{1}\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}\rule{50}{1}[/tex]
[tex]\dagger[/tex] When solving an equation, we need to make sure that variables are on one side of the equation, which is usually the left-hand side, and numbers are on the other side, which is usually the right-hand side, of the equation.
[tex]\bigstar[/tex] Since we have variables on the right-hand side as well as the left-hand side, we need to move all of them to the left-hand side, with the opposite operation:-
[tex]\sf{6x-3x=18}[/tex] Subtract 6x-3x:-
[tex]\sf{3x=18}[/tex] Now, divide by 3 on both sides:-
[tex]\boxed{\boxed{\sf{x=6}}}\checkmark[/tex]
We've found the value of x, but we also need to make sure our solution is correct.
We can do that by substituting 6 for x (into the original equation)
and seeing whether or not we have a true statement:-
[tex]\implies\sf{6(6)=3(6)+18}[/tex]
[tex]\implies\sf{36=18+18}[/tex]
[tex]\implies\sf{36=36}[/tex]
[tex]\bigstar[/tex] Since the LHS equals the RHS, our solution (x=6) is correct.
Good luck with your studies.[tex]\rule{50}{1}\smile\smile\smile\smile\smile\rule{50}{1}[/tex]
(2-i)-(4-6i)(-3+3i) simplify
Answer:
9 - 10i
Step-by-step explanation:
2 + 4 =
6
- 3(when added) =
3
6 + 3 =
9
i + 6i =
7i
7i + 3i =
10i
Answer:
10i
Step-by-step explanation:
i think im wrong but i hope u get the right answer
The surface area of this cube is 54 square millimeters. What is the volume?
Answer:
27
Step-by-step explanation:
One face of the cube is 9 square cm (54/6). So the length of an edge is 3 cm.
3x3x3 = 27
A perfect triangle is a triangle with two key characteristics: 1) all three side lengths are positive integers, and 2) the area of the triangle area is equal to its perimeter. is a triangle with sides of length 8, 9, and 16 a perfect triangle? set up expressions and show the work needed to solve in order to answer the question.
Answer: It is not a perfect triangle.
Step-by-step explanation:
50/13 rounded to the nearest tenth
Answer:
50/13= 3.846153846
nearest tenth anwer is easily 3.8
What value(s) of x will make x2 = 9 true?
.............................................................................
A. 81 and -81
B. V3
C. 3 and -3
D. 3
Thank you to anyone who answers !! :-)
Answer:
C.) 3 and -3
Step-by-step explanation:
The question is asking: "Which numbers can be multiplied by themselves and equal 9?" You can formally find this answer by taking the square root of 9, the opposite of squaring a number. Or, in this case, you can try the guess-and-check method. Remember, multiplying two negative numbers together results in a positive answer.
A.) is incorrect because 81 x 81 = 6561 and -81 x -81 = 6561.
B.) I'm assuming this answer is [tex]\sqrt{3}[/tex] (if it's not, there is still a better answer). This answer is incorrect because [tex]\sqrt{3}[/tex] x [tex]\sqrt{3}[/tex] = 3.
C.) is correct because 3 x 3 = 9 and -3 x -3 = 9.
D.) is incorrect because -3² also equals 9.
What is the value of [(2/3)^0]^-3
Answer:
1
(2/3)^0=1
(1)^‐³
(1/1)³
1
Please someone help me with my question
Answer:
∠A≅∠Y AB≅YZ
∠B≅∠Z AC≅YX
∠C≅∠X BC≅ZX
ΔABC ≅ ΔYZX
Step-by-step explanation:
congruent is identical in form so if the angle has one dash than look for the identical version on the other triangle
Find the distance between the two points on the graph
Answer: The side highlighted is 6.3 units long
Step-by-step explanation:
You can use Pythagorean therum to solve this problem
a² + b² = c²
We already know the length of two of the sides, a and b. So we will replace those variables with the given values
2² + 6² = c²
And now we solve
2² + 6² = c²
4 + 36 = c²
c² = 40
√40 = 6.3
If MK = 9ft find the length of MKL to the nearest tenth
Check the picture below.
we know the diameter MK is 9 units, so the radius must be half that, or 4.5.
[tex]\textit{arc's length}\\\\ s=\cfrac{\theta \pi r}{180}~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=4.5\\ \theta =218 \end{cases}\implies \begin{array}{llll} s=\cfrac{(218)\pi (4.5)}{180}\implies s=5.45\pi \\\\\\ s\approx 17.1 \end{array}[/tex]
What is the surface area (in square meters) of a box with length of 3 m, width of 4 m and a height of 2 m? Round to the nearest whole number.
Answer:
C) 52
Step-by-step explanation:
= 2x 4x 3x 2x 3x 2x 4
Hope this helps!