Answer:
94.5 days
Step-by-step explanation:
We are asked to calculate the time.
The formula to calculate the time for half life =
t = t½ × In (Nt/No)/-In2
t½ = half life = 16 days
No = Initial substance = 120mg
Nt = Amount of substances after time t = 2 mg
t = 16 × In (2/120)/-In2
t = 94.510249529736 days
Approximately = 94.5 days
Therefore, the time it would take for the substance to decay from 120mg to 2 mg is 94.5 days.
If x^2 =2” what is the value of x
Answer:
solution given:
x²=20
x=±√20 is your answer
Answer:
2
Step-by-step explanation:
[tex]x^{2} =20\\x= ± \sqrt{20}[/tex]
Find the area of the quadrilateral below. Formula is: A=1/2h(b1+b2)!!
Answer:
2.6 in^2
Step-by-step explanation:
A=a+b
2h=0.6+2
2·2=2.6
Answer: 2.6
Step-by-step explanation:
A= h(b1+b2)
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer and Step-by-step explanation:
To find the range, we must plug in the values 0 to 15 into the function to find the values of f(x), which are the range.
When plugging in the values, we see that the answer should be the last one.
We start with a pay of $15.50, and it increases each time by $10, until it reaches $165.50.
So, D is the answer.
#teamtrees #PAW (Plant And Water)
Find Find the value of y when x=-5, y=15x+1, When x=-5 , y=...
WHATS TYE ANSWER TO ALL OF THESE! I NEED TO KNOW ASAP! PLEASE!
Answer:
[tex]x+3>27\\ x-8>12\\ 7x\leq 14\\ x+15\geq 4[/tex]
can someone do #2 pls
Answer:
its f
Step-by-step explanation:
A fish tank holds 25 gallons of water. How many quarts of water does the fish tank hold?
Answer:
100 gallons
Step-by-step explanation:
so 1 gallon equals 4quarts multiply that by 25 you get 100 so there you go
Just a few more, help??????????
Answer:
53
Step-by-step explanation:
complementary angle meaning it needs to have the whole sum of 90 degree.
90-37=53
what does the picture represent?
Answer:
This is not a mathematics question. You should post this in History instead
Step-by-step explanation:
Answer:
During the civil war some tried to tear the country into 2, the north and the south. While the person on the middle is trying to keep the country together.
B=cos-1(16) as a decimal
Mguel sells nsurence. He earns a 6% commision on each sell he makes. Miguel has a goal of earning $600 in commisions. Miguel needs to sell what Worth of nsurence to meet his goal.
Answer:
$10,000= sales
Step-by-step explanation:
Giving the following information:
Commission rate= 6%
Desired total earnings= $600
To calculate the sales level required to reach the objective, we need to use the following formula:
Desired earning= commission rate*sales
600= 0.06*sales
600/0.06= sales
$10,000= sales
SOMEONE PLS HELP IM CONFUSED , WILL MARK BRAINLIEST
Answer. multiply 13 and 64 then round to the nearest tenth
Step-by-step explanation:
I hope it helps :)
A man drove his car a distance of 315 miles in 5 hours. If continuing at this rate is possible, he will travel ____ miles in 9 hours.
Numerical Answers Expected!
Answer for Blank 1:
Answer:
567 miles
Step-by-step explanation:
we break down how many miles he went in 1 hour
315/5
he went 63 miles in 1 hour
times this by 9 is 567 miles in 9 hours
Answer:
567 milesStep-by-step:we break down how many miles he went in 1 hour 315/5 he went 63 miles in 1 hour times this by 9 is 567 miles in 9 hours
Step-by-step explanation:
Given m and n are parallel lines, t is a transversal
crossing both m and n, and m48 = 100 degrees,
what is the measure of 3?
Answer:
they would measure 74 meters
Help! I’ll give brainliest!
Answer:
d) -2
Step-by-step explanation:
(-1 - 19)/(16 - 6)
-20/10 = -2
Find the range of the data.
67, 63, 72, 62, 64, 79, 74, 66
Answer:
The range is 17
Step-by-step explanation:
67, 63, 72, 62, 64, 79, 74, 66
To find the range of the data, take the largest number and subtract the smallest number.
The largest number is 79
The smallest number is 62
79-62 = 17
The range is 17
What is the answer to this AND WHY! Thank you!
(−1+√5)/2
Answer: .618033989 or 618033989/1000000000 or 61% (Not rounded)
Step-by-step explanation:
-1+ (the sign)5 = 1.236067977 and if you divide that by two you get .618033989 or 618033989/1000000000 or 61% (Not rounded)
Answer: 0.61803398 Or just put 0.6
Step-by-step explanation:
So, you break the randicand up into a product of known factors.
Or, in other words, find the square root of 5 which is 2.2. Then, you subtract
-1 which gives you ( 2.2 - 1 ) 1.2. Finally, divide by 2 and you final answer is 0.6
A survey of a random sample of juniors shows that 12% are not planning to attend homecoming, and 88%
are planning to attend. The survey has a margin of error of t8%. What is the range for the percentage of juniors who are
going to homecoming?
F 4% to 20%
G 4% to 12% H 80% to 96%
J. 4% to 96%
Answer:
i would guess
Step-by-step explanation:
GET 30 POINTS IF YOU ANSWER!!! ASAP!!!
Which of the following are true statements? Select all that apply. (2 answers)
If sin A=0.35, cos A=0.94, sin B= 0.58, and cos B=0.81 what is sin(A+B)?
Answer:
0.93
Step-by-step explanation:
this is the correct answer you want please follow me and make me brainlist
will mark brainlist + 30 points .. please help asap!!
This probability distribution shows the
typical distribution of the number of shoes
in a teenager's closet.
Shoes
1
2
3
4
5
Frequency
12
20
38
20
10
Using this distribution, find the probability
that a teenager has exactly 2 pairs of shoes
in their closet.
p = [?]
Answer:
is 20 is your answer I believe
Answer:
p=2/20
p=1/10
the probability that a teenager has exactly 2 pairs of shoes is 1/10
Victor bought a new soccer ball. The original price was $29.99, but the ball was on sale for 15%
off. What was the sale price?
Step-by-step explanation:
100-15=85%
85% × 29.99
=$25.49
What is the area A B C or D
Answer:
D.Step-by-step explanation:
[tex]A=\frac{40^o}{360^o}\cdot \pi\cdot 10^2=\frac19\cdot100\pi=\frac{100}9\pi\, cm^2[/tex]
solve for n: 3 x n = 2 x 9
Answer:
n = 6
Step-by-step explanation:
3 x n = 2 x 9
2 x 9 = 18
3 x n = 18
divide by 3 on both sides:
n = 6
hope this helped :)
please help
Mofor and Shanice are selling fruit for a school fundraiser. Customers can buy small boxes of oranges and large boxes of oranges. Mofor sold 12 small boxes of oranges and 3 large boxes of oranges for a total of $96. Shanice sold 6 small boxes of oranges and 6 large boxes of oranges for a total of $84. Find the cost each of one small box of oranges and one large box of oranges.
Answer:
$6 = cost of small box
$8 = cost of large box
Step-by-step explanation:
Let s = cost of small box
l = cost of large box
(1) 12s + 3l = 96 (2) 6s + 6l = 84
Multiply by -2 -24s - 6l = -192
-18s = - 108
s = $6 = cost of small box
12(6) + 3l = 96
72 + 3l = 96
3l = 24
l = $8 = cost of large box
What is the coefficient of the term of degree 4 in this polynomial?
x^8+2x^4 - 4x^3 + x^2-1
Answer:
2
Explanation:
Degree 4 is the term with the exponent that is 4. The 2 in front of the x is the coefficient.
Use the quadratic formula to solve 2^2 − 5 − 5 = 0
The formula is : ( -b ± √b^2 - 4ac ) / 2a
Answer:
x = 5/4 + √65/4 or x = 5/4 - √65/4
Step-by-step explanation:
I'm assuming you mean 2x^2-5x-5=0?
x = ( -b ± √b^2 - 4ac ) / 2a
x = ( -(-5) ± √(-5)^2 - 4(2)(-5) ) / 2(2)
x = ( 5 ± √(25 + 40) ) / 4
x = ( 5 ± √65 ) / 4
x = 5/4 ± √65/4
Therefore, x = 5/4 + √65/4 or x = 5/4 - √65/4
Given the triangle
find the length of side 2 using the Law of Sines.
1. The perimeter of a rectangular garden is 348 m. If the width of the garden is 81 m, what is its length?
2. The area of a rectangular window is 6624 cm If the length of the window is 92 cm, what is its width?
Answer:
1. 93 m is the length of the rectangular garden.
2. The width of the window is 72 cm.
Step-by-step explanation:
Pedro is ordering a scoop of ice cream. For the flavor, he is given the option of chocolate,
strawberry, or vanilla. For the size, he is given the option of small, medium, or large. For the
cone, he is given the option of a sugar cone, waffle cone, or cup. How many possible order
combinations are there?
Answer:
Hope this helps :D
The answer is 27(If i`m not mistaken)
Answer:
27 combinationsStep-by-step explanation:
There are options:
Flavor = 3Size = 3Cone = 3Number of possible combinations:
3*3*3 = 27What are the dimensions of the vertical cross section that is parallel to the right and left faces of the right rectangular prism?
Answer:
A rectangle has a length of 7 inches and a height of 2 inches
Step-by-step explanation:
The height of the vertical cross section is the same as the height of the prism, that is, 2 inches.
The length of the vertical cross section is the same as the width of the prism, that is, 7 inches.