Answer:
226 grams
Step-by-step explanation:
The half-life of a radioactive substance is the time taken for half the quantity of the substance to decay such that the amount life after the given period of time is half the original quantity.
As such, given that the half-life of a certain radioactive element is 35 hours and there are 904 grams available, it means that after 35 hours,
Amount decayed = 1/2 * 904 grams
= 452 grams
Amount left = 904 grams - 452 grams
= 452 grams
After another 35 hours (now a total of 70 hours),
Amount decayed = 1/2 * 452 grams
= 226 grams
Amount left = 452 grams - 226 grams
= 226 grams
What is the simplest form of this expression y2 (3y + 4) + 5y3
Answer:
y2 (3y + 4) + 5y3 :))
Step-by-step explanation:
please give me a good rating lol
Answer:
y2(3y+4)=5y3
Step-by-step explanation:
can you predict the outcome of multiplying 750 by 0.1 without calculating
Answer:
750 × 1/10 = 750/10 = 75
Step-by-step explanation:
The best way to really predict the outcome of multiplying 750 by 0.1 without calculator is firstly, converting the decimal to a fraction to easily do the multiplication in your head.
Since one of the multiplicand is a decimal the products will be much complicated therefore, to convert the decimal number 0.1 to a fraction number we shift the point to the right hand side which simply translate to 1/10. The trick here is the number of times we shift the point will determine the number of zeros the denominator will possess. Assuming we have 0.12 as the decimal, it is required we shift the point twice and the resulting value we become 12/100. If the decimal is 0.123 it is required we shift the point 3 times , the resulting value will be 123/1000. Not the number of times we shift the point will determine the number of zero's of the denominator.
Finally, the 2 multiplicands are now 750 and 1/10 which is more easier to manipulate in our head.
750 × 1/10 = 750/10 = 75( you just cancel the zeros)
R={(-3,-2),(-3,0),(-1,2),(1,2)} Select all numbers that are in the range.
Look at the attached picture
Hope it will help you
Good luck on your assignment
PLZ HELP AND HURRY, IM GIVING BRAINLIEST AND 50 POINTS!!! PLZ HURRY!!
If P(not yellow) = StartFraction 4 over 15 EndFraction, which best describes the probability of the complement of the event? P(yellow) = StartFraction 8 over 15 EndFraction P(yellow) = StartFraction 11 over 15 EndFraction P(not yellow) = StartFraction 8 over 15 EndFraction P(not yellow) = StartFraction 11 over 15 EndFraction
Answer:
p yellow 11 over 15
Step-by-step explanation:
I hope you get it right! Please give me brainliest!
Answer:
11 over 15
Step-by-step explanation:
what is the 50th term of the sequence that begins -2, 4, 10, 16
290
294
292
296
Answer: 292
Step-by-step explanation:
The formula is: [tex]a_n=a_1+(n-1)d[/tex]
Where;
[tex]a_n=[/tex] [tex]n^t^h[/tex] term or the term we're trying to find.
[tex]a_1=[/tex] First term
[tex]d=[/tex] Common difference.
To find the common difference, take [tex]a_2-a_1[/tex], or [tex]a_3-a_2[/tex] or [tex]a_4-a_3[/tex]
4-(-2)=?
4+2=?
6 -> this is our common difference
---------------------------------
10-4=?
6 -> this is our common difference
--------------------------------
16-10=?
6 -> this is our common difference
------------------------------------------------------------
Knowing this, we plug into the formula the number we're trying to find.
[tex]a_n=a_1+(n-1)d\\a_5_0=-2+(50-1)6\\a_5_0=-2+(49)6\\a_5_0=-2+294\\a_5_0=292[/tex]
Answer:
C. 292
Step-by-step explanation:
A circle is cut in half and removed. What is the approximate area (shaded region) of the remaining portion of the circle in square feet? There is a picture of a circle with a line through the middle showing 12 feet.
12 feet ( A=pie(3.14)r^2)
Options are: A. 60 ft2 B. 120 ft2 C. 225 ft2 D. 450 ft2
On a distant planet, a 20º central angle intercepts an arc of 4067 miles. What is the radius of the planet at its equator?
The radius of the planet is
miles. (Simplify your answer.)
Answer: 11,682.4 miles
Step-by-step explanation:
We can think the planet as a circle:
if we have a circle of radius R, and an arc of A degrees in the circle, the lenght of the arc is:
L = (A/180°)*3.14*R
Here we know that:
L = 4076 miles
A = 20°
Then:
4076mi = (20/180)*3.14*R = 0.3489*R
R = 4076mi/0.3489 = 11,682.4 miles
Why are quadrilaterals referred to as quadrilaterals, and not under the blanket name of "polygons"?
Which of the following has the greatest volume ?
A. A cube with a side of 1 inch
B. A cylinder with a height of 1 inch in radius of 1 inch
C. A column with the height of 1 inch and a radius of 1 inch
D. A sphere with a radius of 1 inch
Answer:
D
Step-by-step explanation:
Step-by-step explanation:
D is the final answer
D!!!
Martha used 2/3
tablespoons of pepper to make 1/6
liters of gravy. If Martha's recipe is for 1 liter of gravy, how much pepper will she need to make double the recipe?
A) 2 tablespoons of pepper
B) 4 tablespoons of pepper
C) 8 tablespoons of pepper
D) 12 tablespoons of pepper
plz helppp
Answer:
8 tablespoons of pepper
Step-by-step explanation:
Therefore, double the recipe: 4 × 2 = 8 tablespoons of pepper
Can someone help me and show how to write the perimeter equation for x to this polygon.50 points Find x for full 70 points
Answer:
10x + 8 = 21
x = 1.3
Step-by-step explanation:
a)
In pentagon ABCDE,
AB = DE = 2x + 3 and BC = CD = x + 1
Perimeter of pentagon ABCDE = 21
4x + 2(2x + 3) + 2(x + 1) = 21
4x + 4x + 6 + 2x + 2 = 21
[tex] \purple {\boxed {\bold{10x + 8 = 21}}} [/tex]
b)
10x = 21 - 8
10x = 13
[tex]x = \frac{13}{10} \\ x = 1.3 \: cm [/tex]
Write the numbers in order from least to greatest:
0.4, 3/5, 0.55, 1/4
Answer:
1/4,0.4,0.55,3/5
Step-by-step explanation:
Answer:
1/4, 0.4, 0.55, 3/5
Step-by-step explanation:
0.4, 3/5, 0.55, 1/4
0.4, 0.6, 0.55, 0.25
0.25, 0.4, 0.55, 0.6
1/4, 0.4, 0.55, 3/5
avocados cost $3 per pound. write and graph an equation in two variables that represents the cost of buying avocados.
pleasee hellpp asappp!!!
if possible, whoever answers this can you put a picture of what the graph would look like please and thank you :)
Answer:
y = 3x
Step-by-step explanation:
sorry cant do the graph
How do measurements help you describe real-world objects?
Answer: Measurements helps us describe real-world objects by helping us do basic things as making time estimations,do daily routines, and check a child's temperature with a thermometer. It helps us understand the world among us in a better way.
A school is planning for an addition in some open space next
to the current building. The existing building ends at the
origin. The graph represents the system of equations that
can be used to define the space for the addition. What is the
system of equations that matches the graph?
-
-5 -5
6 -3 -2 -1.3
y s 3x
y>-2x-1
y> 3x
ys-2x-1
oy<-3x
y 2x-1
Oy> -3x
y s 2x-1
answer:
option A y≤3x
The system of equations that matches the graph is as follows:
y ≤ 3x
y > -2x - 1
What is inequality?Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.
The line y = 3x represents the boundary for the first inequality, and the line y = -2x - 1 represents the boundary for the second inequality.
The first inequality has a less than or equal to sign, the region below the line y = 3x is shaded.
The second inequality has a greater than sign, the region above the line y = -2x - 1 is shaded.
The overlapping region of the two shaded regions represents the solution to the system of inequalities, which is the region where both inequalities are true. Therefore, the solution is the triangle-shaped region that is below the line y = 3x and above the line y = -2x - 1.
The shaded region represents the solution to the system of inequalities y ≤ 3x and y > -2x - 1.
Learn more about the inequalities here:
brainly.com/question/20383699
#SPJ7
How many one-third cubes are needed to fill the gap in the prism shown below?
MATH EASY AND MARK BRAINLIEST
A prism has a length of 4 and two-thirds, height of 2, and width of 4. 16 blocks are inside of the prism.
4
8
16
24
Answer:
D.24
hope i helped :D
Answer:
16
Step-by-step explanation:
Dr. Barber needs to pay her employees $15.00 an hour. If she has five
technicians and they each worked 25 hours, how much money in total will Dr.
Barber pay all of the technicians?
Answer:
$1,875
Step-by-step explanation:
$15.00 per hour (multiply by hours)
per technician (multiply by technicians)
so: 15x25=375 then 375x5=1,875
Answer:
$1875
Step-by-step explanation:
First, let's find how many hours the technicians worked
She has 5 technicians, and the each worked 25 hours
We can multiply 5 and 25 to find the total number of hours
5*25=125
Now we know that the technicians worked 125 hours altogether. Now, we need to find how much money that is.
They worked 125 hours, and they are paid $15 per hour
We can multiply 125 and 15 to find the cost
125*15=1875
So, Dr. Barber will pay the technicians $1875 in total
the cylinder and the sphere below have the same radius and the same volume. What is the height of the cylinder?
Answer:8
Step-by-step explanation:
Answer:
Step-by-step explanation:
8m
Please someone help me
Answer:
Step-by-step explanation:
5)
DG= 60 (whole)
DO= 4x-3 (Part)
OG= 2x+ 21 (Part)
4x-3+ 2x+21= 60
6x+18=60
6x=42
x=7
Using this we can solve for DO and DG
DO= 4*7-3
DO= 25
DG= 2*7+21
DG= 14+ 21= 35
6)
TB is whole
TU is part
UB is part
5x= 4x-1+2x-1
5x=6x-2
x=2
UB= 2*2-1= 4-1= 3
TU= 4*2-1= 8-1= 7
Could any help me on this?
The picture is not good enough can you send another one
PLEASE HELP ME!!!
I don't understand....
If possible, please explain!
Answer:
55
Step-by-step explanation:
Since this is an isosceles triangle, the angles at the bases of the identical legs must be equal
<A = <C
3x+40 =x+50
Subtract x from each side
3x-x+40 = x+50-x
2x +40 = 50
Subtract 40 from each side
2x+40-40=50-40
2x = 10
Divide each side by 2
2x/2=10/2
x = 5
We want to find <A
3x+40
3(5)+40
15+40
55
Which decimal number rounds to 0.296?
A) 0.29463
B) 0.29547
C) 0.29563
D) 0.29657
E) 0.29659
Answer:
The answer should be C. 0.29563
Step-by-step explanation:
I'm sorry if its blurry I'm on my laptop btw theres a 7 if you can't see it
(please give brainliest)
Bathroom = 14 ft x 7 ft = 98 ft^2
Living Room = 21 ft x 14 ft = 294 ft^2
Closet = 7 ft x 7ft = 49 ft^2
21 x (7 + 3.5)
21 x 10.5
210 + 10.5 = 220.5
Bedroom = 21 ft x 10.5 ft = 220.5 ft^2
14 x (7 + 3.5)
14 x 10.5
140 + 7
Kitchen = 14 ft x 10.5 ft = 147 ft^2
what is the answer of a^2+b^2-(a-b)^2
Answer:
2ab
Step-by-step explanation:
a²+b²-(a-b)²=
=a²+b²-(a²-2ab+b²)
=a²+b²-a²+2ab-b²
=2ab
5. The longest leg of a right triangle is 8 meters and another side is 6 meters. Calculate the
perimeter. 5
Answer:
24 meters
Step-by-step explanation:
Alright. Your question had errors, but I managed to scramble together some answers.
The right triangle has a total of 3 sides, 2 which are 8 and 6. We need to find the hypotenuse.
Let's use the Pythagorean Theorum.
a^2 + b^2 = c^2
8^2 + 6^2 = c^2
64 + 36 = 100
To get c by itself, square root it.
[tex]\sqrt{100} =10[/tex]
You found the hypotenuse :D
Add it up!
8 + 6 + 10 = 24 meters
Answer:
Remember this formula.
Step-by-step explanation:
[tex]\sqrt{a^{2}+b^{2}=c^{2}[/tex]
If your legs are 8 and 6, the last side is the hypotenuse, which is always the largest side of a right triangle. You calculate it's length by taking the measurements of leg A and leg B, and squaring both of them, or raising them both by the power of 2.
This will equal C, or your hypotenuse, but it will be squared, so you have to find its square root to get the actual measurement, which is why the equation has a square root sign over it, so the answer is automatically squared when put into a calculator.
8 x 8 = 64 [or [tex]8^{2}[/tex]]
6 x 6 = 36 [or [tex]6^{2}[/tex]]
[tex]8^{2}+6^{2}=100\\\sqrt{100}=10[/tex]
[tex]\sqrt{8^{2}+6^{2}=10[/tex]
. can someone help asap will mark brainliest answer
i don' really get the question but the only 2 mistakes i can spot are:
Munich is in the wrong place and so is Oslo.
explanation:
if you look at the way the other 3 are positioned then you will see
Karen has a coupon for $1.52 off any
candy related item. She decides to buy
a package of 9 chocolate bars that
normally costs $10.25. If Karen uses
her coupon, what will the price per
chocolate bar be?
—
Enter
Answer:
$8.73 per package of candy bars
Step-by-step explanation:
10.25 - 1.52=
How many 1/4 pound
hamburgers can be made
from 2 1/2 pounds of ground
beef?
Answer:
9 hamburgers
Step-by-step explanation:
[tex]\frac{1}{4}[/tex] × 2 = [tex]\frac{1}{2}[/tex]
[tex]\frac{1}{2}[/tex] × 5 =[tex]2\frac{1}{2}[/tex]
[tex]\frac{1}{4}[/tex] × 9 =2 [tex]\frac{2}{4}[/tex] 2
,so 9 hamburgers can be made
We need to find the number of quarter pound hamburgers that can be made from given the amount of ground beef.
10 quarter pound hamburgers can be made.
The amount of ground beef available is [tex]2\dfrac{1}{2}[/tex] pounds.
One hamburger has a mass of [tex]\dfrac{1}{4}[/tex] pound.
[tex]1\ \text{hamburger}=\dfrac{1}{4}\ \text{pound of beef}[/tex]
[tex]\\\Rightarrow 1\ \text{pound of beef}=4\ \text{hamburgers}[/tex]
[tex]2\dfrac{1}{2}\ \text{pound of beef}=(2+\dfrac{1}{2})\times4=10\ \text{hamburgers}[/tex]
So, a total of 10 quarter pound hamburgers can be made.
Learn more:
https://brainly.com/question/22986936
https://brainly.com/question/5606082
The area of a square is 102 square units. What is an
estimated value for the length of a side of the square?
between 10 and 11
between 11 and 12
between 12 and 13
between 13 and 14
Answer:
Between 10 and 11.
Step-by-step explanation:
To begin, we can look at the problem as such. If we take the first answer choice, we can find the squares of both numbers giving us: (Remember that the area of a square is A=L²)
10²= 100
11²= 121
Since the given area is in between these two numbers, this means that the side length must be between 10 and 11.
elijah's credit card statement showed these items: Last Balance Payments Finance Rate New Charges $152.58 $45.00 1.5% $213.40 What is Elijah's new balance? $320.98 $322.59 $323.27 $397.51
Answer:
Option A,$320.98 is correct
Step-by-step explanation:
The new balance on Elijah's credit is the sum of the last balance plus new charges minus payments made.
last balance as shown by the statement was $152.58
new charges were $213.40
payment made by Elijah was $45
new balance=$152.58+$213.40-$45=$320.98
The rationale for this is that the new charges on the card account add to previous balance owed by Elijah while the payment of $45 made reduces overall balance.
Answer:
Other answer is incorrect. Elijah's new balance would be $322.59
Your welcome.
