The half life of a radioactive kind of cadmium is 14 years. How much will be left after 28 years, if you start with 72 grams of it?
Answers
Answer:
18 grams
Step-by-step explanation:
Answer: 18
Step-by-step explanation:
28 divided by 14 equals 2
72 multiplied by 0.05^2 equals 18
Related Questions
PLEASE HELP!! ASAP !!! WILL MARK BRAINLEST!
Answer choices
○ 0°
○180°
○270°
Answers
Answer:
270° counterclockwise
Step-by-step explanation:
PLZZZZ HELPPPPP!!
Diane plants a tree in her backyard. The tree is currently 5 feet tall and is expected to grow at an average rate of 1.4 feet per year. Determine when the tree will be 12 feet tall.
7 years
12 years
5 years
8 years
Answers
5
Step-by-step explanation:
5+1.4+1.4+1.4+1.4+1.4
Please i really need help
Answers
Answer:
-6
Step-by-step explanation:
it's asking when x is equal to -5 what is y equal to?
there's only one point when x=-5 and it's -6
so the point is (-5,-6) and y is equal to -6
hope this helps and makes sense <3
do well babe
find the are in millimeters plz.
Answers
Answer:
640 units squared
Step-by-step explanation:
First, the formula of a trapezoid is (a + b) x 2 divided by h
So, 40 + 24 = 64
64 x 20 = 1280
and 1280/2 = 640
Hope this helps!
Kelly got a part time job and had to pay $150 worth of taxes, which was 10% of her monthly payment. How much money did she make before paying taxes?
Answers
Answer:
$1,500
Step-by-step explanation:
To find how much money she made before paying taxes, divide 150 by 0.1:
150/0.1
= 1500
So, Kelly made $1,500 before taxes
Answer:
$1,500
Step-by-step explanation:
Turn 10% into a decimal: To turn a percent into a decimal, you move the decimal twice to the left.
10%=.1
Divide: $150 divided by .1=1500
$1,500
Hope this helped!! :)
Stay safe and have a wonderful day/night!!!!!
Good luck!
Brainliest?!?!
Find all solutions to (x+5)(2x-3)=3
Answers
Answer:x=-5.22311 and x=1.72311
Step-by-step explanation:
2x^2-3x+10x-15=3
Then put into quadratic formula and use calculator
Choose the correct scale factor:
Pls help
Answers
Answer:
The image was dilated by a scale factor of 2. (x,y) -> (2x,2y)
Step-by-step explanation:
Jackie wants to buy a dress, the regular price of the dress is $36 but it is on sale for 20% off, what is the final price, show work.
Answers
Answer: The final price is $7.2
Step-by-step explanation: if you multiply 36 x 20 = 720 and if you divide 100 = 7.2
what is the solution of
x/3+2=3
Answers
Answer:
x=3
Step-by-step explanation:
x/3+2=3 (subtract 2)
x/3=1 (multiply by 3)
x=3
please help me i'll count you as brainlist
Answers
Answer:
b
Step-by-step explanation:
Answer:
x=-6
Step-by-step explanation:
[tex]3x-7-\frac{2}{3}(9x-6)=15\\3x-7-6x+4=15\\-3x-3=15\\-3x=18\\x=-6[/tex]
Which equation is graphed here?
A)y = 2 + 2/3x
B)y = 2/3x - 2
C)y = -2 - 2/3x
D)y = -2/3x + 2
Answers
Which number line shows the solution to w - 2 ≤ 8? *
(don't delete my question)
Answers
Answer:
closed circle going left from 10
Step-by-step explanation:
B (*￣3￣)╭
convert into 24 hours clock time. (a).1.40pm
Answers
Answer: 13:40
Step-by-step explanation:
Answer:
13:40
Step-by-step explanation:
pm is after the first 12 hours of the day
and so 1 pm you just add one
12+1=13
at the 40 minutes
13:40
The admission free at a small is $ 1.50 for children and $ 4.00 for adults on a certain day $ 5,050 is collected if 1,000 adults attended the fair write and slove a linear equation to find the number of children that attended.
Answers
Answer:
c=children
a=adult
total amount=1.5c+4a
5050=1.5c+4*1000
1.5c=1050
c=700 childrens
Step-by-step explanation:
The graph of the function f(x) =x^2 is shown on the grid below. Graph the function g(x) =(x-2)^2 -4 in the interactive graph.
Answers
Answer:
shift it down by 4 units
Step-by-step explanation:
by the placement of the -4 it can be determined that you would shift it according to the y axis
The formula a(x-h)^2 + k = y
h represents change in x, k represents change in y
-k means shift down
Find the area of the complex figure.
Answers
Answer:
it's 189 the area
Step-by-step explanation:
area =189
Find the area of the parallelogram.
Answers
Answer:
36 ft^2
Step-by-step explanation:
I) Find dimensions:
The base is 9 feet, and the height is 4 feet.
(Remember, 6 ft is not the height because that is the height of the parallelogram's parallel sides.)
II) Find area:
Area = base x height
A = B x H
36 = 9 x 4
III) Find unit:
Make sure to add the unit, it is ft^2 or ft² since this figure is three-dimensional and measured in feet.
anyone good with this problem! pls help , due in 16.
Answers
James is participating in a 3-mile walk to raise money for a charity. He has received $300 in fixed pledges and raises $13 extra for every mile he walks. Use a point-slope equation to find the amount he will raise if he completes the walk.
Answers
Answer: $339
Step-by-step explanation:
Given
The total length of the journey is 10 miles
fixed pledges are $300
variable pledges are $13 per mile
Point slope equation form is
[tex]\Rightarrow y=mx+c[/tex]
Here the total charge corresponds to y and miles walked corresponds to x
So, we can write
[tex]T=13\times m+300[/tex]
where,
[tex]T=\text{Total charge}\\m=\text{miles walked}[/tex]
for 3 miles distance
[tex]\Rightarrow T=3\times 13+300=\$339[/tex]
Which is an arithmetic sequence?
Question 3 options:
-5, 6, 10, 13
1, 2, 4, 8
1, 4, 9, 16
3, 10, 17, 24
Answers
Answer:
3, 10, 17, 24
Step-by-step explanation:
The others don't have a common pattern so it is the last one.
The common difference in the last one is 7.
So the last one is the correct answer.
Hope this helps =]
A triangle has a base length of 14cm. The perpendicular height is 9cm. Find the area of the triangle
Answers
14 x 9 / 3
The area of a triangle with the given base and height is 63 cm².
Given that, a triangle has a base length of 14 cm and the perpendicular height is 9 cm.
What is the area of a triangle?The area of a triangle is defined as the total space occupied by the three sides of a triangle in a 2-dimensional plane. The basic formula for the area of a triangle is equal to half the product of its base and height, i.e., A = 1/2 × b × h.
Here, b=14 cm and h= 9 cm
So, area = 1/2 × 14 × 9
= 63 cm²
Therefore, the area of a triangle with the given base and height is 63 cm².
To learn more about the area of a triangle visit:
brainly.com/question/27701864.
#SPJ5
Kian is twice as old
as Xhendric. The sum
of their ages is 36. How
old are they?
(pls answer with solution)
Answers
Answer:
12 and 24
Step-by-step explanation:
Klan is 24 and Xhendric is 12
1. y = 6 x+8
2. y = 23 x
3. y = -x+ 5
4. y = 3 4 x - 212
5. y = 1,5 x + 11
Answers
Answer:
Not sure what you're asking here
Step-by-step explanation:
what is the value?.
help.
Answers
I checked on my calculator, since it’ll be too hard to show the work here with my phone :)
I BEG U HELP MEEE PLEASEEE
Answers
Answer:
C
Step-by-step explanation:
The answer is c
Find the value of x, round your answer to the nearest tenth.
Answers
Which of the given pairs of expressions are equivalent? Select all that apply.
Answers
Answer:
sorry I don't know about this Question
Andre and Elena are each saving money. Andre starts with $120 in his savings account and adds $5 per week. Elena starts with $50 in her
savings account and adds $15 each week
After 4 weeks how much will they have.
After how many weeks will they both have the same amount of money.
Answers
Answer:
140 for andre and elena will have 110 dollars
The measure of an angle is 34.7°. What is the measure of its supplementary angle?
Answers
Answer:
Let the supplementary angle be x.
x+34.7°=180
or, x=180-34.7°
or, x=145.30°
:. x=145.30°
An ordinary (fair) die is a cube with the numbers 1 through 6 on the sides (represented by painted spots). Imagine that such a die is rolled twice in succession and that the face values of the two rolls are added together. This sum is recorded as the outcome of a single trial of a random experiment.
Compute the probability of each of the following events.
Event A: The sum is greater than 6.
Event B: The sum is not divisible by 4.
Write your answers as fractions.
Answers
Event B = 1/2
can u give me brainliest please