Answer:
7.2 minutes
Step-by-step explanation:
The formula to find the time using the radioactive decay rate formula is given as:
t = t½ × In(Nt/No)/-In2
Where
t½ = half life = 6 minutes
No = Initial Amount = 260 grams
Nt = Amount after decay
= 113 grams
Hence:
t = 6 × In(113/260)/-In2
t = 7.2131331036796 minutes
Approximately = 7.2 minutes
I'm also struggling this problem too
Answer:
21 6
7 2
14 4
Step-by-step explanation:
not sure |•-•|
Help with this please
which lines must be parallel?
A)r and s
B)p and q
C)p and r
D)q and s
Answer:
It may be R and S yet or not
i will mark brainlist if right!!!
Step-by-step explanation:
b2 =5
.....................
Solve 24 ≤ -6t
The solution is ___
Graph the solution.
Answer:
T < - 4
Step-by-step explanation:
Answer:
t<-4
Step-by-step explanation:
is this linear or non-linear?
y=
[tex] \frac{x}{9} [/tex]
+12
Answer: Linear Function.
Step-by-step explanation: The Y intercept is 12, and the slope is x/9, so you have a constant slope, therefore it is linear.
Solve the following quadratic equation by factorising first x^2 + 5x - 14 =0
Answer:
Step-by-step explanation:
Here you go mate
step 1
x^2+5x-14=0 equation/Question
step 2
x^2+5x-14=0 factor by setting them equal to zero
(x-2)(x+7)=0
answer
x=2 or x=-7
Which sequence explains a geometric method of determining StartFraction 3 minus 17i Over 2 + 2 I EndFraction ?
In a right triangle, the length of one leg is 20 units. The length of the other leg is 12 units. What is the length of the hypotenuse?
The required measure of the hypotenuse length is √544. Option D is correct.
In a right triangle, the length of one leg is 20 units. The length of the other leg is 12 units.
What are Pythagorean triplets?In a right-angled triangle, its side, such as hypotenuse, perpendicular, and base is Pythagorean triplets.
Here,
Apply Pythagoras' theorem,
(hypotenuse)² = sum of the square of the legs,
(hypotenuse)² = 20² + 12²
(hypotenuse)² = 544
hypotenuse = √544
Thus, the required measure of the hypotenuse length is √544. Option D is correct.
Learn more about Pythagorean triplets here:
brainly.com/question/22160915
#SPJ2
−2(1 − 5v) Please help with this i got it wrong twice
Answer:
Step-by-step explanation:
Sorry for the bad handwriting :(
Calculate the area of trapezium CDEF.
Step-by-step explanation:
1/2×(9+5)×6
1/2×14×6
7×6
42cm2
Is 2x + 3 +7x equivalent to the expression 2(x+3) + 7x?
Answer:
No
Step-by-step explanation:
because if you use distribution on 2(x+3)+7x it gives you 2x+6=7x which does not equal 2x+3+7x
What is a real solution and examples of real solutions
Answer:
A real solution in algebra is simply a solution to an equation that is a real number.
for example
If y>0, then x2 = y has two real solution or roots. x = ±√y
If y=0, then x2 = y has one real solution.
Please answer quick 20 points and if answer is right I will give Brainly
Answer:
216*64/8=1728....
Step-by-step explanation:
12³ is the appropriate answer
Help !! Answer please
Answer:
4
Step-by-step explanation:
its all on the picture.
Answer:
B!
Step-by-step explanation:
By the way, you named this as Mathematics... This is science but, the answer is B.
Answer:
Water carbon dioxide and oxygen.
Step-by-step explanation:
Its all in the picture. It labels the substances used in the cycle.
1 hay bale = 16" X 16" X 44"
The trailer is 28' long, 8' wide, and the hay can be stacked 8' high.
How many bales can the trailer transport?
Answer:
25 Haybales
Step-by-step explanation:
On your trailer you should be able to fit 25 bales in a tier (spelling). 6 high would give you 150. Then you should be able to put another 10-20 on the neck of the trailer. All depends on how high you want to stack.
To solve the equation 2−5(3+4x)=2x+7, Miranda's first step was to write 2−15−20x=2x+7. Which property did Miranda use in her first step?
Answer:
Step-by-step explanation:
distributive
George wants to rent a car for a road trip with his friends. He checked the rentals with two companies. Company A charges a non-refundable fee of $50 and then also $150 for each day. Company B charges using the function 50(2+1). Compare the two functions. Which function has a great rate of change?
Answer:
Company A has a greater daily rate
Step-by-step explanation:
Given
Company A
[tex]Base\ Charges=\$50[/tex]
[tex]Daily\ Rate = \$150[/tex]
Company B
[tex]f(x) = 50(2x +1)[/tex]
Required
Determine the company with greater rate
Simplify the expression of company B
[tex]f(x) = 50(2x +1)[/tex]
[tex]f(x) = 50 * 2x + 50 * 1[/tex]
[tex]f(x) = 100x + 50[/tex]
In a linear function:
[tex]f(x) = mx + b[/tex]
m represents the rates.
This implies that the rate of company B is:
[tex]Rate =100[/tex]
and the rate of company A is
[tex]Daily\ Rate = \$150[/tex]
By comparison:
Company A has a greater daily rate
Simplify: −2(5) + 2 =
Answer:
-8
Step-by-step explanation:
-2(5) + 2
-10 + 2
-8
(-3, -7). 1/7 what is the equation in point slope form
Answer:
y+7 = 1/7(x+3)
Step-by-step explanation:
Point slope form of a line is given by
y-y1 = m(x-x1)
where m is the slope and (x1,y1) is a point on the line
(y - -7) = 1/7(x - -3)
y+7 = 1/7(x+3)
is it possible to draw a triangle with numbers 5,6,11
Answer:
No
Step-by-step explanation:
Let's use the Pythagorean Theorem. For those of you that don't know, it is [tex]a^2 + b^2 = c^2\\[/tex].
11 is the bigger side in this case, so our formula would go like this: [tex]5^2 + 6^2 = 11^2\\[/tex].
We now calculate to see if this is true.
25 + 36 [tex]\neq[/tex] 121
Therefore, the answer is wrong.
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELPPPPPPPPPPP MEEEEEEEEEEE
The table below shows measurement conversions between cups and ounces.
1 .Let x represent the number of cups and y represent the number of ounces. Write an equation that represents this relationship.
Answer: y = 8x
3 x 8 = 24
5 x 8 = 40
8 x 8 = 64
70.50 - 52.01 - 0.22 =
Help I got it wrong and I dont know how to do the problem
Answer:
18.27
Step-by-step explanation:
70.50-52.01- 0.22
18.49-0.22
18.27
There are 40 apples in a crate.
3
5 of the apples are bad.
How many good apples are there?
I need help please ten points for question number three !!!!!!!!.......!!!!!!.....
Answer:
where is the question though
Step-by-step explanation:
Answer:
what
Step-by-step explanation:
i’ll give u brainliest!!
what are the areas for shape 1,2 and 3
Answer:
I think it is
1: 22.37
2:16.81
3:83.16
Step-by-step explanation:
Answer:
Shape 1: 22.365
Shape 2: 16.81
Shape 3: 83.16
Step-by-step explanation:
I'm going to start with 2, because its the easiest shape to do, which is 4.1*4.1= 16.81. Next is 3, which you find the length by adding 4.1 to 9.1 = 13.2. You then multiply 13.2 by 6.3 = 83.16. Finally for shape 1, you first find the bottom shape, which you do by dividing 6.3 by 2 so you can get the width of half the triangle. That is 3.15. then you multiply that by 7.1 to get the area of 22.365.
The points in the table lie on a line. Find the slope of the line. helppp pls and if you can explain how u did it thank you
6 = m/8 Solve the equation.
[tex]6=\frac{m}{8}\\x=48[/tex]
HELP PlZ DUE in 30 MIN
m∠6 =
Answer:
Angle 6 is 47°
Step-by-step explanation: